54 Questions
Your body has three types of muscle tissue that perform different ______.
functions
______ muscle is an involuntary muscle that is found only in the heart.
Cardiac
Skeletal muscles are a ______ muscle tissue that is attached to bones.
voluntary
______ is when the angle of a joint decreases.
Flexion
The knee flexes in preparation for kicking a ______.
ball
Short bones have very equal proportions and are roughly shaped like a ______.
cube
Examples of short bones include the bones of your ______ and ankles.
wrists
The job of the short bone is to give stability to the wrist and ankle ______ and allow some movement.
joints
Curved bones are thin and slightly curved. Examples of curved bones include your ______.
skull
The job of the curved bone is to protect your internal ______.
organs
The skeleton is the central structure of the ______.
body
The human skeleton contains ______ bones.
206
The largest bone in the body is the thigh bone, or ______.
femur
The job of the long bone is to support the ______ of your body and allow movement.
weight
[Blank] bones are longer than they are wide.
Long
The skull protects the ______.
brain
The ______ forms the head in the human skeleton.
skull
The ribs have three important functions: protection, support, and ______.
respiration
The ribs protect internal organs such as the heart, lungs, and ______.
liver
The major function of the spine is the protection of the ______ cord.
spinal
The spine provides stiffening for the body and attachment for ______ and pelvic girdles.
pectoral
The legs support and bear the weight of the upper body when a person ______.
stands
The bones that make up the fingers and toes are called ______.
phalanges
The palms of your hands are made up of five bones called ______.
metacarpals
The femur is the longest and ______ bone in the human skeleton.
strongest
In humans, the metatarsal bones are larger than the corresponding bones of the hands, the ______ bones.
metacarpal
The tarsals and metatarsals form the ______ of the foot, which give it strength and enable it to bear weight.
arches
The human foot contains 26 ______.
bones
The human foot has 33 ______.
joints
The image shows a skeleton with the ______ labelled.
skull
The foot also includes more than a hundred ______, tendons, and ligaments.
muscles
The ______ is one of the labelled bones in the image.
clavicle
The ______ allow you to do the overhead lifting and allow for the rotation of your arms.
shoulders (Delts)
The ______ control the movement of the arms and play an important part in inhalation.
chest (pecs)
The ______ help the arm make a curling motion and flexing the elbow.
biceps
The ______ will contract to straighten the arm and are used to counteract the action done using the biceps.
triceps
The ______ allow you to move your head and help the upper back when lifting heavy objects.
traps (trapezius)
The ______ allow for your support structure and allow you to sit up.
lats
The ______ allows you to rotate your forearm outward and inward.
forearm
The ______ prevents the knee from buckling.
quads
The ______ allows for triple extension of the ankle, knee, and hip, which are the basis for running, jumping, and squatting.
hamstrings
The ______ helps you plantar flex your ankle.
calves
The ______ allows for the movement of your legs, such as forwards and backward.
glutes
A shoulder joint extends when the ______ moves backwards from the rest of the body.
humerus
Extension of the hip joint occurs when the ______ moves backwards.
femur
The elbow extends when throwing a ______.
shot put
The take-off knee extends when a high-jumper ______ off.
takes
Extension of the hip joint occurs in the preparation for a kick in ______.
football
The human skeleton contains 206 ______, six of which are the tiny ______ of the middle ear.
bones
The largest bone in the body is the thigh bone, or ______.
femur
The skeleton provides a framework to support the ______ and tissues of the body.
organs
The skeleton protects our internal organs, such as the skull protecting the ______.
brain
Long bones are longer than they are ______.
wide
Our muscles are joined to our skeleton, giving us our human ______.
shape
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.
Learn about the structure and functions of the human skeleton, including the number of bones, largest bone, and characteristics of bones.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
