3. Two parts of our skeletal system
Axial Skeleton: Consist of the skull, thorax and
vertebral column.
Appendicular Skeleton: Consist of the shoulder
girdle, upper extremities, pelvis and lower
extremities.
4. Axial Skeleton
Skull
1. Cranial Bones/Cranium: This is also called the brain case
because it holds and protect the brain.
2. Facial Bones: These are the bones that make up your face.
Try and feel the structure of your face.
3. Bones of the middle ear: These are also called the hammer
(malleus), anvil(incus) and stirrup(stapes).
4. Hyoid Bones: It is found on the neck and it goes up and down
when swallowing. This is the only bone not attached to the
skeleton.
5. Axial Skeleton
Thorax
1. Sternum: This is also called the
breast bone. It is the hard bone right
in middle of your chest.
2. Ribs: Your ribs surround and protect
your heart and lungs.
6. Appendicular Skeleton
Shoulder Girdle
1. Clavicle: It is called the collarbone. It is a
long bone above the first rib. Feel the bone
where your collar usually rests, at shoulder
level.
2. Scapula: This refers to the shoulder blades.
These are the triangular flat bones that
connect the humerus(arm bone) with the
clavicle(collar bone)
7. Appendicular Skeleton
Upper Extremities
1. Humerus: This is a long bone in your upper arm
extending from the scapula to the elbow.
2. Radius and ulna: These are the bones of your lower
arm. The radius is the bone on line with your thumb.
3. Carpals: These are the bones of the wrist.
4. Metacarpals: These are the bones of your palm.
5. Phalanges: These are your finger bones.
8. Appendicular Skeleton
Pelvis: The pelvis is your hipbone. It supports the lower portion of your
body and makes the movements of your legs.
Lower Extremities
1. Femur: The longest bone: Also called thigh bones.
2. Patella: Protects the knee joints. Also called kneecap.
3. Tibia: Located at the front of lower leg. Also called shin bone.
4. Fibula: Located at back of your lower leg. Also called calf bone.
5. Tarsals: These are the bones of your ankle.
6. Metatarsals: These are the bones of your sole or step.
7. Phalanges: These are the toe bones.
9. Learn More:
The
adult has a total of 206 bones. The
infant skeleton, however, has the following
bones in addition:
Sacral
Vertebrae(Five bones): Which normally
fuse to form sacrum.
Coccygeal
Vertebrae(About four bones): Which
normally fuse to form the coccyx.
Illium,
Ischium and Pubis: Which normally fuse
to form the pelvic girdle.
10. Did you know about this?
Although bones can break, they are so strong
that you can engage in unnatural feats
without shattering your bones. A polevaulter’s thigh bones can withstand a
pressure of about 20,000 lbs. per square inch
when he or she lands from the vault.
