Skeletal System Flashcards
Parts of skeletal system
Bones, Joints, Cartilages, Ligaments
Two divisions of skeletal system
Axial skeleton, Appendicular skeleton
axial skeleton consist:
skull, ribs, vertebra
Appendicular skeleton consist:
pelvis, extremities
Function of the bones
- support of the body
- protection of soft organs
- storage of minerals and fats
- blood cell formation
- movement due to attached skeletal muscle
Bones in adult skeleton
206 bones
Types of bone tissue
Compact bone, Spongy bone
Homogeneous
Compact bone
Small needle like pieces of bone
Spongy bone
Classification of bones on the basis of shape
Long bones, Short bones, Flat bones, Irregular bones
Typically Longer than wide
Long bones
Have a shaft with heads at both ends
Long bones
Long bones contains of what types of bone tissue
Compact bone
Example of long bones
Femur, Humerus
Generally cube shape
Short bones
Short bones contains what type of bone tissue
Spongy bone
Example of short bones
Carpals, Tarsals
Thin, flattened usually curved
Flat bones
Thin layer of compact bone around a layer of spongy bone
Flat bones
Example of flat bones
skulls, ribs, sternum
Irregular in shape
Irregular bones
Do not fit into other bone classification categories
Irregular bones
Example of irregular bones
vertebrae, hips