Skeletal Muscle Test Flashcards
(52 cards)
yellow bone marrow is primarily made up of what?
fatty cells
true ribs:
attach directly to the sternum by means of cartilage
in a child there are 5 of these bones. in an adult, they are fused into what
sacrum
which of the following is not classified as a cranial bone? sphenoid temporal occipital scaphoid
scaphoid
what do we call “softspots” on a newborns head?
fontanels
what type of cell forms bone
osteoblasts
what type of cell resorbs bone
ostoclasts
list the 5 functions of the skeletal system
support movement protection store minerals blood cell formation
list 6 cranial bones
occipital frontal parietal (2) temporal (2) sphenoid ethmoid
what are the ends of the long bone called
epiphysis
what is the shaft of the long bone called
diaphysis
bone is irregular in shape
vertebra
the carpal bones are an example of _____ bones
short
a rib is an example of what bone
flat
what label best matches osteocyte
mature bone cell
through the action of osteoclasts
bony matrix is dissolved
the interconnecting tiny arches of bone tissue found in spongy bone are called
trabaculae
the medullary cavity of bones contains
marrow
the lining of the medullary cavity is called the
endosteum
what structure allows a bone to grow in length
epiphyseal plate
when production of sex hormones increases at puberty, epiphyseal plates
become narrower
a lack of exercise could
result in porous and weak bones
______ marrow is found between the trabeculae of spongy bone
red
bone plays a central role in the regulation of blood levels of
calcium
