Skeletal System quiz

Long bone

bone found in arms and legs

compact bone

The hard, dense outer layer of bone tissue

spongy bone

• small needle like pieces of bone

• many open spaces (gives way)

• usually on ends of bones

Cartilage

What do ends of bones have to decrease friction?

diaphysis

shaft of bone

Epiphysis

end of bone (spongy bone & cartilage)

medullary cavity

cavity of shaft (hole in diaphysis)

Periosteum

outside covering of diaphysis made of fibrous connective tissue membrane

sharpey’s fibers

secure periosteum to underlying bone

artieries

supply bone cells with nutrients

abduction

bring limb away from midline

adduction

bring limb towards midline

dorsiflexion

toes go up

plantar flexion

toes go down

flexion

lower angle of joint

extension

bring angle of joint back to normal

hyperextension

goes past normal joint angle

lateral rotation

rotate legs so feet point out

medial rotation

rotates legs so feet point in

circumduction

move in circle (clockwise, counter clockwise)

pronation

palm face down

supination

palm face up

inversion

feet bend inward

eversion

feet bend outward

retraction

shoulders go back

protraction

shoulders go forward

elevation

shoulders up

depression

shoulders down

lateral flexion

spine left and right

Epiphysis plate

where you grow from (growth plate)