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Questions and Answers
Your body has three types of muscle tissue that perform different ______.
Your body has three types of muscle tissue that perform different ______.
functions
______ muscle is an involuntary muscle that is found only in the heart.
______ muscle is an involuntary muscle that is found only in the heart.
Cardiac
Skeletal muscles are a ______ muscle tissue that is attached to bones.
Skeletal muscles are a ______ muscle tissue that is attached to bones.
voluntary
______ is when the angle of a joint decreases.
______ is when the angle of a joint decreases.
The knee flexes in preparation for kicking a ______.
The knee flexes in preparation for kicking a ______.
Short bones have very equal proportions and are roughly shaped like a ______.
Short bones have very equal proportions and are roughly shaped like a ______.
Examples of short bones include the bones of your ______ and ankles.
Examples of short bones include the bones of your ______ and ankles.
The job of the short bone is to give stability to the wrist and ankle ______ and allow some movement.
The job of the short bone is to give stability to the wrist and ankle ______ and allow some movement.
Curved bones are thin and slightly curved. Examples of curved bones include your ______.
Curved bones are thin and slightly curved. Examples of curved bones include your ______.
The job of the curved bone is to protect your internal ______.
The job of the curved bone is to protect your internal ______.
The skeleton is the central structure of the ______.
The skeleton is the central structure of the ______.
The human skeleton contains ______ bones.
The human skeleton contains ______ bones.
The largest bone in the body is the thigh bone, or ______.
The largest bone in the body is the thigh bone, or ______.
The job of the long bone is to support the ______ of your body and allow movement.
The job of the long bone is to support the ______ of your body and allow movement.
[Blank] bones are longer than they are wide.
[Blank] bones are longer than they are wide.
The skull protects the ______.
The skull protects the ______.
The ______ forms the head in the human skeleton.
The ______ forms the head in the human skeleton.
The ribs have three important functions: protection, support, and ______.
The ribs have three important functions: protection, support, and ______.
The ribs protect internal organs such as the heart, lungs, and ______.
The ribs protect internal organs such as the heart, lungs, and ______.
The major function of the spine is the protection of the ______ cord.
The major function of the spine is the protection of the ______ cord.
The spine provides stiffening for the body and attachment for ______ and pelvic girdles.
The spine provides stiffening for the body and attachment for ______ and pelvic girdles.
The legs support and bear the weight of the upper body when a person ______.
The legs support and bear the weight of the upper body when a person ______.
The bones that make up the fingers and toes are called ______.
The bones that make up the fingers and toes are called ______.
The palms of your hands are made up of five bones called ______.
The palms of your hands are made up of five bones called ______.
The femur is the longest and ______ bone in the human skeleton.
The femur is the longest and ______ bone in the human skeleton.
In humans, the metatarsal bones are larger than the corresponding bones of the hands, the ______ bones.
In humans, the metatarsal bones are larger than the corresponding bones of the hands, the ______ bones.
The tarsals and metatarsals form the ______ of the foot, which give it strength and enable it to bear weight.
The tarsals and metatarsals form the ______ of the foot, which give it strength and enable it to bear weight.
The human foot contains 26 ______.
The human foot contains 26 ______.
The human foot has 33 ______.
The human foot has 33 ______.
The image shows a skeleton with the ______ labelled.
The image shows a skeleton with the ______ labelled.
The foot also includes more than a hundred ______, tendons, and ligaments.
The foot also includes more than a hundred ______, tendons, and ligaments.
The ______ is one of the labelled bones in the image.
The ______ is one of the labelled bones in the image.
The ______ allow you to do the overhead lifting and allow for the rotation of your arms.
The ______ allow you to do the overhead lifting and allow for the rotation of your arms.
The ______ control the movement of the arms and play an important part in inhalation.
The ______ control the movement of the arms and play an important part in inhalation.
The ______ help the arm make a curling motion and flexing the elbow.
The ______ help the arm make a curling motion and flexing the elbow.
The ______ will contract to straighten the arm and are used to counteract the action done using the biceps.
The ______ will contract to straighten the arm and are used to counteract the action done using the biceps.
The ______ allow you to move your head and help the upper back when lifting heavy objects.
The ______ allow you to move your head and help the upper back when lifting heavy objects.
The ______ allow for your support structure and allow you to sit up.
The ______ allow for your support structure and allow you to sit up.
The ______ allows you to rotate your forearm outward and inward.
The ______ allows you to rotate your forearm outward and inward.
The ______ prevents the knee from buckling.
The ______ prevents the knee from buckling.
The ______ allows for triple extension of the ankle, knee, and hip, which are the basis for running, jumping, and squatting.
The ______ allows for triple extension of the ankle, knee, and hip, which are the basis for running, jumping, and squatting.
The ______ helps you plantar flex your ankle.
The ______ helps you plantar flex your ankle.
The ______ allows for the movement of your legs, such as forwards and backward.
The ______ allows for the movement of your legs, such as forwards and backward.
A shoulder joint extends when the ______ moves backwards from the rest of the body.
A shoulder joint extends when the ______ moves backwards from the rest of the body.
Extension of the hip joint occurs when the ______ moves backwards.
Extension of the hip joint occurs when the ______ moves backwards.
The elbow extends when throwing a ______.
The elbow extends when throwing a ______.
The take-off knee extends when a high-jumper ______ off.
The take-off knee extends when a high-jumper ______ off.
Extension of the hip joint occurs in the preparation for a kick in ______.
Extension of the hip joint occurs in the preparation for a kick in ______.
The human skeleton contains 206 ______, six of which are the tiny ______ of the middle ear.
The human skeleton contains 206 ______, six of which are the tiny ______ of the middle ear.
The largest bone in the body is the thigh bone, or ______.
The largest bone in the body is the thigh bone, or ______.
The skeleton provides a framework to support the ______ and tissues of the body.
The skeleton provides a framework to support the ______ and tissues of the body.
The skeleton protects our internal organs, such as the skull protecting the ______.
The skeleton protects our internal organs, such as the skull protecting the ______.
Long bones are longer than they are ______.
Long bones are longer than they are ______.
Our muscles are joined to our skeleton, giving us our human ______.
Our muscles are joined to our skeleton, giving us our human ______.
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Study Notes
The Skeleton System
- The skeleton is the central structure of the body, composed of bones, joints, and cartilage.
- It provides a framework for muscles to attach, giving us our human shape.
- The human skeleton contains 206 bones, with 6 tiny bones in the middle ear that function in hearing.
- The largest bone in the body is the femur (thigh bone).
- Bones are strong but light, with lots of air under the surface, and store minerals needed by the body.
4 Functions of the Skeleton
- Support: Provides a framework to support the organs and tissues of the body.
- Protection: Protects internal organs, such as the brain, heart, lungs, and other viscera.
- Movement: Provides a framework for muscles to attach, allowing for movement through muscle contraction.
- Supply & Storage: A source of red blood cells (transport oxygen) and white blood cells (fight infection) formed within the bone marrow.
Types of Bones
- Long Bones: Longer than they are wide, examples include femur, humerus, and bones of fingers and toes.
- Short Bones: Equal proportions, roughly shaped like a cube, examples include bones of wrists and ankles.
- Curved Bones: Thin and slightly curved, examples include skull, scapula, and ribs.
- Curved bones protect internal organs, attach muscles to bones, and provide stability to joints.
Functions of Important Bones
- Skull: Forms the head, supports face structures, forms a cavity for the brain, and protects the brain from injury.
- Ribs: Protects internal organs, provides support, and aids in respiration.
- Spine: Protects the spinal cord, provides stiffening for the body, and attaches to pectoral and pelvic girdles.
The Human Skeleton
- The legs support and bear the weight of the upper body, and allow for daily activities.
- The bones that make up the fingers and toes are called phalanges.
- The femur is the longest and strongest bone in the human skeleton, and articulates with the acetabulum in the pelvic bone to form the hip joint.
Types of Muscle
- Smooth Muscle: Involuntary, found in internal organs, causes movements within the body.
- Cardiac Muscle: Involuntary, found only in the heart.
- Skeletal Muscle: Voluntary, attached to bones, controls movement.
Types of Movement
- Flexion: Bending a joint, decreasing the angle of the joint.
- Extension: Straightening a joint, increasing the angle of the joint.
Functions of Muscles
- Traps: Allows for head movement, helps with upper back lifting.
- Shoulders: Allows for overhead lifting, arm rotation.
- Chest: Controls arm movement, pushes open doors, aids in inhalation.
- Biceps: Helps with curling motion, flexing the elbow, controls shoulder and elbow.
- Triceps: Contracts to straighten the arm, extends the elbow, counteracts biceps action.
- Lats: Allows for support, sitting up, tilting the pelvis, bending the lower spine, aids in breathing and posture.
- Glutes: Allows for leg movement, prevents knee buckling, aids in squats, climbing stairs, standing, and walking.
- Hamstrings: Allows for knee and hip movement, prevents knee buckling, aids in running, jumping, and squatting.
- Calves: Helps with ankle movement, curling toes, bending the knee.
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