NCERT - LOCOMOTION & MOVEMENT - 24-25

Which type of muscle is under the voluntary control of the nervous system?

Cardiac muscles exhibit a smooth appearance.

What is the origin of muscle tissue?

Muscles contribute about ________ percent of the body weight of a human adult.

Which of the following muscles assist in transporting food through the digestive tract?

Match the type of muscle with their characteristics:

Which type of muscle is primarily involved in locomotory actions?

What term describes the voluntary movements that result in a change of place or location?

Smooth muscles are found in the skeletal components of the body.

All movements are considered locomotion.

Name one type of movement exhibited by plant cells.

Ciliary movement is primarily found in the ______ organs of the human body.

Which type of movement is characterized by the formation of pseudopodia?

Match the following types of movements with their descriptions:

Hydra uses its tentacles solely for capturing prey.

What is the primary function of locomotion in animals?

Which of the following bones is not part of the hand?

The patella is known as the thigh bone.

How many carpals are there in the wrist?

The triangular flat bone located in the dorsal part of the thorax is called the ______.

Match the following bones with their categories:

What is the function of the pectoral and pelvic girdles?

Each pectoral girdle consists of one clavicle and one scapula.

What is the total number of digits in the hands?

What neurotransmitter is released at the neuromuscular junction?

During muscle contraction, both the A bands and I bands shorten.

What is formed when myosin binds to the exposed active sites on actin?

The shortening of the sarcomere during contraction is caused by the pulling of actin filaments towards the center of the ________ band.

Which of the following bones is NOT part of the ear ossicles?

Match the following muscle components with their functions:

The cervical vertebrae consist of 12 individual bones.

What happens to Ca++ ions after muscle contraction?

What is the primary function of the vertebral column?

The first seven pairs of ribs are called __________ ribs.

Red fibers in muscles have a low content of myoglobin.

Match the following types of ribs with their characteristics:

What accumulation leads to fatigue in muscles after repeated activation?

How many lumbar vertebrae are there in the human vertebral column?

The sternum is a round bone located in the middle of the thorax.

What is the total number of ribs in the human rib cage?

What is the main role of cross bridges during muscle contraction?

The skeletal system is mainly composed of bones and muscles.

Name one significant characteristic that distinguishes red muscle fibers from white muscle fibers.

Match the following types of muscle fibers with their primary characteristics:

What part of the skeletal system is formed by the skull, vertebral column, ribs, and sternum?

There are 12 pairs of ribs in a human skeleton.

What type of movement is characterized by the streaming of protoplasm?

What neurotransmitter is released at the neuromuscular junction to initiate muscle contraction?

All movements in living organisms are classified as locomotion.

Name two types of movements exhibited by cells in the human body.

The A bands shorten during muscle contraction.

Ciliary movement is important for removing _________ from the trachea.

What happens to the Z lines during muscle contraction?

The accumulation of _________ leads to muscle fatigue.

Match the following organisms with their mode of locomotion.

Which of the following is NOT a common reason for locomotion in animals?

Match the following components of muscle contraction with their roles:

Hydra only uses its tentacles for locomotion.

Which band gets reduced in size during muscle contraction?

Muscles with high myoglobin content are known as white fibers.

What are the three main types of movements exhibited by human body cells?

What is the role of myoglobin in muscles?

What structure bisects the I-band in a myofibril?

The I band contains myosin filaments.

What are the two major proteins found in myofibrils responsible for muscle contraction?

The functional unit of contraction in a muscle fiber is called a __________.

Match the muscle fiber bands with their characteristics:

Which part of the muscle cell contains a large number of nuclei?

The term 'myofilaments' refers to the individual muscle fibers in the muscle bundle.

What connective tissue layer holds together muscle bundles?

How many bones make up the vertebral column in humans?

All mammals have seven cervical vertebrae.

What are the three tiny bones in the middle ear called?

The first seven pairs of ribs are known as __________ ribs.

Match the following vertebral regions with their number of vertebrae:

What connects the ribs ventrally to the sternum?

The last two pairs of ribs are classified as vertebrochondral ribs.

What serves as the main framework of the trunk?

What type of joint is characterized by a fluid-filled synovial cavity allowing considerable movement?

Fibrous joints allow for free movement between the bones.

What is the name of the cavity where the thigh bone articulates with the pelvic girdle?

The pelvic girdle is formed by the fusion of three bones: ilium, ischium, and ______.

Match the type of joint with its characteristics:

Which of these joints is an example of a pivot joint?

Cartilaginous joints are found between adjacent vertebrae in the spinal column.

What bone commonly referred to as the collarbone?

What is the primary energy source for white muscle fibers?

The skeletal system in humans consists of 208 bones.

What are the two principal divisions of the human skeletal system?

The bones that protect the brain are called ________ bones.

Match the following types of bones with their functions:

How many cranial bones are found in the human skull?

The appendicular skeleton includes the skull, vertebral column, and rib cage.

Name the process that both red fibers and white fibers in muscles utilize for ATP production.

What is the primary characteristic of visceral muscles?

Skeletal muscles are also referred to as nonstriated muscles.

What percentage of body weight is contributed by muscles in a human adult?

The contractile property of muscles is essential for __________ in human beings.

Match the following types of muscles with their characteristics:

Which type of muscle is found exclusively in the heart?

Name one function of smooth muscles in the human body.

Ciliary movement does not play a role in the passage of ova through the reproductive tract.

Which structure bisects the I-band in a sarcomere?

All muscle fibers are multinucleated and lined by a plasma membrane called the sarcolemma.

What are the two primary proteins that give myofibrils their striated appearance?

The functional unit of muscle contraction is called a ______.

Match the following structures with their functions:

What is the primary component found in the sarcoplasmic reticulum?

Actin filaments are thicker than myosin filaments.

What term is used to describe multiple muscle fibers grouped together?

What is the primary function of the skeletal system?

White muscle fibers have a high amount of mitochondria.

How many bones are in the adult human skeleton?

The skeletal system is divided into two parts: the axial skeleton and the ______ skeleton.

Match the following parts of the skeleton with their classifications:

Which type of muscle depends mainly on anaerobic processes for energy?

The adult human skull consists of 22 bones.

What type of muscle fibers are known for their endurance due to a high concentration of mitochondria?

What is the primary function of joints in the human body?

What is the primary cause of muscular dystrophy?

Fibrous joints allow significant movement between the bones.

Osteoporosis is primarily caused by excess levels of estrogen in the body.

What are the three major structural forms of joints?

What causes tetany in muscles?

The two halves of the pelvic girdle meet ventrally to form the __________.

Myasthenia gravis is an _________ disorder affecting the neuromuscular junction.

Match the following disorders with their description:

Which type of joint is characterized by a fluid-filled cavity between articulating bones?

What are the primary types of muscle tissue found in the human body?

Match the following types of joints with their examples:

Cartilaginous joints allow for extensive movement between bones.

Cardiac muscles are voluntary and striated.

Each coxal bone is formed by the fusion of three bones: ilium, ischium, and __________.

What ion is released from the sarcoplasmic reticulum to trigger muscle contraction?

Which of the following bones are collectively known as ear ossicles?

The first cervical vertebra is known as the atlas.

What are the regions of the vertebral column?

The __________ vertebrae consist of 12 individual bones.

How many cervical vertebrae are found in most mammals including humans?

The vertebral column protects the heart.

What is the primary function of the rib cage?

Locomotion in animals primarily occurs for the purpose of seeking food, shelter, or escaping predators.

Name one structure that assists with locomotion in Hydra.

The movement of __________ in the trachea helps in clearing dust particles and foreign substances.

Which of the following statements accurately describes the relationship between movements and locomotion?

Human beings exhibit a single type of movement through their limbs.

During muscle contraction, both the I bands and A bands lengthen.

What causes the return of Z lines to their original position after muscle contraction?

The process causing shortening of the sarcomere during contraction is known as the __________ theory.

Match the following muscle fiber characteristics with their types:

What is the role of ATP during muscle contraction?

What leads to fatigue in muscles after repeated activation?

Myoglobin is a red colored oxygen-storing pigment found in muscles.

What are the pale or whitish muscle fibers called?

The axial skeleton comprises 80 bones and includes the skull, vertebral column, sternum, and ribs.

How many bones are in the human adult skeletal system?

The _____ is a U-shaped bone present at the base of the buccal cavity.

What primary function do skeletal muscles serve?

Match the following skeletal bones with their respective classifications:

Cartilage has a hard matrix due to calcium salts.

Name one function of the skeletal system.

Which bone is known as the longest bone in the human body?

The scapula is located in the ventral part of the body.

The cup shaped bone that covers the knee is called the ________.

Match the following bones with their respective categories:

What bone articulates with the head of the humerus to form the shoulder joint?

The human leg consists of the femur, fibula, and metatarsals.

Name the two halves that form each pectoral girdle.

What is the primary function of the pelvic girdle?

Fibrous joints allow for a range of movements.

What is the cavity called where the coxal bones fuse?

The joint type that permits limited movements is called _____ joints.

Match the following joints with their types:

Which type of joint is characterized by a fluid-filled synovial cavity?

The clavicle is also known as the collarbone.

Name one example of a synovial joint.

Which disorder is characterized by rapid spasms in muscle due to low calcium levels?

Osteoporosis is primarily a disorder resulting from an increase in bone mass.

What is the main cause of muscle fatigue during extended activity?

Match the following muscular disorders with their descriptions:

What is the primary function of calcium ions during muscle contraction?

Visceral muscles are voluntary and are responsible for skeletal movements.

Identify one characteristic that distinguishes cardiac muscle from skeletal muscle.

What type of movement is exhibited by unicellular organisms like Amoeba?

Which structure in Paramecium aids in both food movement and locomotion?

Which specialized cells in the human body exhibit amoeboid movement?

Human beings can use limbs for both body posture changes and locomotion.

What type of muscles are characterized by a striated appearance and are under voluntary control?

Cardiac muscles are voluntary muscles.

What is the primary function of smooth muscles in the human body?

About ________ percent of the body weight of a human adult is contributed by muscles.

Which characteristic is NOT a property of muscle tissue?

Ciliary movement is responsible for muscle contraction.

What does the 'H' zone in a muscle fiber indicate?

What muscle type primarily assists in maintaining water currents in the canal of sponges?

Actin filaments are primarily composed of meromyosins.

What is the role of tropomyosin in muscle contraction?

Muscle contraction is initiated by a signal from the __________ via a motor neuron.

Match the components of muscle contraction with their roles:

Which of the following statements is true regarding the sliding filament theory?

Each myosin filament is composed of a single type of protein.

What is the function of the globular head found in myosin filaments?

The I bands reduce in size during muscle contraction.

The return of muscles to their original position after contraction is called ______.

Match the following muscle components with their roles:

What happens to ADP and Pi during muscle contraction?

Red fibers contain low levels of myoglobin, giving them a pale color.

What leads to muscle fatigue after repeated activation?

What are the three tiny bones found in the middle ear collectively called?

The vertebral column consists of 30 vertebrae in total.

How many pairs of true ribs are there in the human body?

The first vertebra is called the __________.

Match the following regions of the vertebral column with the number of vertebrae they contain:

Which of the following ribs are classified as floating ribs?

The sternum is a flat bone located at the dorsal midline of the thorax.

What type of cartilage connects the true ribs to the sternum?

What causes muscle contraction?

The human skeleton has 206 bones.

What are the two main types of muscle fibers based on myoglobin content?

The axial skeleton consists of the __________, __________, and __________.

Match the types of joints with their characteristics:

What type of muscle is characterized as involuntary?

Sternum is located on the dorsal side of the body.

In humans, the total number of phalanges in each limb is __________.

What provides the primary structural support to each muscle bundle?

What is the functional unit of contraction in a muscle fibre called?

The dark band in a myofibril that contains myosin is called the ______ band.

Which component of a muscle fibre contains multiple nuclei?

The I band contains thick myosin filaments.

What term describes the membrane surrounding a muscle fibre?

Which of the following properties are characteristic of muscle tissues?

Skeletal muscles display a smooth appearance under the microscope.

What distinguishes visceral muscles from skeletal muscles?

Cardiac muscles are located in the __________.

Match the type of muscle with its key characteristic:

What role do muscles primarily play in multicellular organisms?

Cilia and flagella are types of muscle tissue.

Which type of muscle is primarily responsible for transporting food through the digestive tract?

What process causes the active sites on actin filaments to be exposed during muscle contraction?

The I bands shorten while the A bands retain their length during muscle contraction.

What neurotransmitter is released at the neuromuscular junction during muscle activation?

The ______ pigment in muscles is responsible for storing oxygen.

Match the following components with their functions in muscle contraction:

Which of the following statements describes the process of muscle relaxation?

Repeated activation of muscles can lead to the accumulation of lactic acid, causing fatigue.

During muscle contraction, the 'Z' lines are pulled ______ towards the center of the A band.

Which of the following describes the function of joints?

Synovial joints do not allow considerable movement.

What are the three bones that form each coxal bone?

The cavity at the point of fusion of ilium, ischium, and pubis is called the __________.

Which type of joint is NOT associated with considerable movement?

The pubic symphysis contains fibrous cartilage.

The vertebral column contains 30 individual vertebrae in humans.

What are the first two cervical vertebrae called?

The last two pairs of ribs in humans are referred to as __________ ribs.

Match the types of vertebrae with their number:

Which region of the vertebral column is responsible for protecting the spinal cord?

The first seven pairs of ribs are called false ribs.

Which condition is characterized by progressive degeneration of skeletal muscle?

Tetany refers to the inflammation of joints.

What is the primary cause of osteoporosis?

Match the following terms related to muscular disorders with their descriptions:

Which of the following is a characteristic of cardiac muscle?

What is the role of calcium ions (Ca++) during muscle contraction?

All skeletal muscles are involuntary.

What distinguishes locomotion from other types of movements?

Amoeboid movement is characterized by the movement of cilia.

Name one locomotory structure utilized by Hydra.

In humans, the internal organs lined by ciliated epithelium exhibit ________ movement.

What is one reason animals perform locomotion?

Cilia function only in movement and not in feeding.

What movement type is primarily exhibited by macrophages in the human body?

What role does acetylcholine play at the neuromuscular junction?

The 'I' bands shorten while the 'A' bands remain constant during muscle contraction.

What accumulates in muscles leading to fatigue after repeated activation?

The _____ band is where the actin filaments are pulled towards during muscle contraction.

Match the process with its function in muscle contraction:

Which of the following components returns to its relaxed state after muscle contraction?

Muscles that contain high myoglobin content and appear reddish are classified as _____ fibers.

The sliding filament theory explains how muscles contract by shortening the A bands.

What is the central part of the thick filament called, which is not overlapped by thin filaments?

Each actin filament is made up of two filamentous actins spiraled together.

What type of protein binds to the active sites on actin during muscle contraction?

The sliding filament theory explains that muscle contraction occurs due to the sliding of thin filaments over the thick filaments, initiated by a signal from the ______.

Match the following components of muscle contraction with their descriptions:

What component of myosin is known as the globular head, which has ATP binding sites?

Tropomyosin and troponin are not part of the actin filament structure.

What unit is formed by a motor neuron and the muscle fibers it connects to?

Which type of muscles are known for their high mitochondria content and ability to use oxygen for ATP production?

The axial skeleton includes the hyoid bone as one of its components.

How many total bones are there in the adult human body?

Muscles that appear pale or whitish due to low myoglobin content are known as __________.

What type of skeleton comprises the skull, vertebral column, sternum, and ribs?

The skeletal system consists entirely of bones.

What is the key characteristic difference between red and white muscle fibers?

What are the two halves that form each pectoral girdle?

The cup-shaped bone that covers the knee is known as the ______.

Match the following bones with their corresponding categories:

How many carpals are there in the human wrist?

The glenoid cavity of the scapula articulates with the head of the femur.

The number of digits in a human hand is ______.

What is the primary function of joints in the body?

Fibrous joints allow significant movement.

What are the three bones that make up each coxal bone?

The cavity where the thigh bone articulates with the coxal bone is called the ______.

Which of the following is an example of a synovial joint?

The pubic symphysis is made of bony tissue.

What type of joint is characterized by a fluid-filled cavity?

Which of the following is NOT a type of movement exhibited by cells in the human body?

In Paramoecium, ______ helps in the movement of food and locomotion.

Which organism exhibits a simple form of movement through streaming of protoplasm?

Humans can use limbs solely for locomotion.

Name one structure that assists in locomotion for Hydra.

How many cervical vertebrae are found in almost all mammals, including humans?

Each middle ear contains three tiny bones known as the _______ ossicles.

Match the following types of ribs with their descriptions:

Which of the following vertebral regions is correctly matched with the number of vertebrae?

The sternum is a flat bone that lies on the dorsal midline of the thorax.

What are the two fused sacral and coccygeal vertebrae called?

The patella is also referred to as the knee cap.

What are the total numbers of phalanges in one hand?

The bones of the wrist are known as ________.

Which of the following bones articulates with the head of the humerus?

Match the following components of the pelvic girdle with their respective details:

There are 7 tarsal bones in the ankle.

How many metacarpals are present in one hand?

What term is used for muscles that contain a large amount of mitochondria and utilize oxygen for ATP production?

White muscle fibers appear reddish in color due to high myoglobin content.

How many bones are there in the human skeleton?

The axial skeleton comprises ______ bones distributed along the main axis of the body.

Which of the following statements is true regarding cartilage?

The skull consists of 22 individual bones, which includes 8 cranial bones.

What type of skeleton includes the skull, vertebral column, ribs, and sternum?

What structures are responsible for muscle contraction by pulling actin filaments?

The appendicular skeleton includes the skull and vertebral column.

What type of joints allow considerable movements?

Muscles can be classified into __________ and __________ fibers based on myoglobin content.

Match the following joints with their descriptions:

How many types of muscle fibers are primarily discussed?

The H-zone of striated muscle fiber contains only thick filaments.

What happens to calcium ions (Ca++) after muscle contraction?

Which of the following disorders is characterized by rapid spasms in muscles due to low calcium levels?

Muscular dystrophy is an autoimmune disorder that leads to muscle paralysis.

What are the primary structural units of muscle fibers?

The age-related disorder characterized by decreased bone mass is known as __________.

Which statement best describes the role of calcium (Ca++) in muscle contraction?

Skeletal muscles are involuntary in nature.

What are the three types of muscles found in the human body?

Which type of muscle is primarily involved in the transportation of food through the digestive tract?

Skeletal muscles are involuntary and do not exhibit striation.

What type of muscle is located in the heart?

Which of the following properties is NOT characteristic of muscles?

Visceral muscles are under voluntary control.

What is the primary function of locomotion in multicellular organisms?

Which band is characterized as the light band containing actin?

Myofibrils have a striated appearance due to the arrangement of actin and myosin proteins.

The plasma membrane of a muscle fiber is known as the __________.

Match the following components of muscle fibers:

What role does the sarcoplasmic reticulum play in muscle fibers?

The A-band and I-band appear to be arranged randomly throughout the length of the myofibrils.

What type of structure do actin and myosin form in the muscle fiber?

What type of muscle fibers depend on the anaerobic process for energy?

The axial skeleton contains 80 bones.

How many cranial bones make up the human skull?

The skeletal system is primarily made up of _______ and cartilage.

Match the following types of muscle fibers with their characteristics:

Which bone is NOT part of the cranial bones?

What is the function of the hyoid bone in the body?

What triggers the release of calcium ions in the muscle fiber?

What is the pigment called that stores oxygen in muscle fibers?

The structure that forms between myosin and actin during contraction is known as a __________.

Match the muscle contraction process stages with their descriptions:

What happens to the sarcomere during muscle contraction?

Lactic acid accumulation in muscles contributes to muscle fatigue.

What ion is pumped back to the sarcoplasmic cisternae to facilitate muscle relaxation?

The scapula is a flat bone located in the dorsal part of the thorax.

What are the names of the two bones that make up the lower arm?

The knee cap is also known as the ______.

Match the following bones with their respective groups:

The metatarsals form the wrist area.

How many digits are found in the human hand?

Which condition is characterized by joint inflammation due to the accumulation of uric acid crystals?

Skeletal muscles are involuntary muscles that are striated in appearance.

The condition known as ______ is a progressive degeneration of skeletal muscle, mostly due to a genetic disorder.

Which type of muscle is responsible for involuntary movements in the heart?

What is released from the sarcoplasmic reticulum to activate muscle contraction?

Actin and myosin are both types of skeletal muscle fibers.

Which type of muscle is characterized by having a striped appearance and is under voluntary control?

Cardiac muscles are exclusively under voluntary control of the nervous system.