skeletal system

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compare n contrast various types of bones in body
- -long bones are wide and long; shaft w/ 2 rounded ends n composed of compact bone; arms, legs
- -short bones are cube shaped n composed of spongy bone; found in tarsals n carpals
- -flat bones are curved n protect organs; in ribs, cranium
- -irregular bones found in hip nd vertabrae
where is the bone marrow found in the bone?

medullary cavity
what is difference btw yellow & red marrow

yellow- in adult, red in infants
major types of cells located within bones;
- -osteocytes - unit of a bone
- -osteoclasts - bone destroying
- -osteoblasts - bone forming
2 parts of skeletal system

-axial and appendicular
functions of skeletal system;
- -supports body
- -protection of organs
- -storage of minerals n fats
- -movement of muscles
- -blood cell formation
shaft(composted of compact bones

diaphysis
the ends of the bone, composed of spongy bone

epiphysis
outside covering of diaphysis

periosteum
this fracture breaks into many fragments

comminuted
fracture that bone is crushed

compression
fracture that broken bone ends are foced into each other

impacted
fracture that bone is pressed inward

depressed
fracture that twists are applied

spiral
bone that breaks imcompletely

green stick
during repair of bone fractures,

hemetoma is formed
axial skeleton is divided into 3 parts
- -skull
- -vertebral column
- -bony thorax
skull has 2 sets of bones;
- -cranium
- -facial bones
skull bones are joined by

sutures
hollow portions of bones surrounding the nasal activity

paranasal sinuses
function of paranasal sinuses;

lighten the skull n give resonance and amplifcation to voice

Author

tinnaa012

117079

Card Set

skeletal system

Description

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Updated

2011-11-15T22:18:30Z