ch 23 Flashcards
what is that goopy stuff in the middle
yellow bone marow
what type of bone is around the marrow
compact bone
whats the tough layer on the outside of the bone called
paryosteum
on the long bone instead of compact bone whats on the end
sponge bone
why is the surface on bone smooth
to slide past each other smoothly
what is the bone made out of
cartilage
blood vessels cant go thoourhg compact bone but can go throught he
haversian canals
what are the dots that surround
osteocytes
what is the majority of the bone made out of
calcium and phospherous
what are osteoclasts
they chew up cells that arent doing good
what cells form new bones
osteoblasts
what is the porcess of bone formation
ossification
when does ossification start
6-7 week before birth
what are teh tissues that make up the joint area
ligaments
what is at the end of each bone
a growth plate/ephiseal plate
what do sinovial cavety make
sinovial fluid
what is sinovial fluid for
lubrication
what are bursa
a small, fluid-filled sac that acts as a cushion between bones, tendons, and muscles
what is it called when the bura gets swollen a bit
bursatis
what are muscles made up of
muscle bundles
what are within muscel fibers
myofibrils
what are musccle cells made up of
myofibril
what is myofiril made up of
sarcomere
what thick/thin filament is in sarcomere
myosin,and actin
what is neuromuscular junction
a specialized synapse where a motor nerve fiber connects with a muscle fiber
what is striated muscle
also known as skeletal muscle is attached to bone and its movement is voluntary
what is cartilage
A tough, flexible tissue that lines joints and gives structure to the nose, ears, larynx, and other parts of the body.
what is the axial skeleton
he central core of the body, made up of 80 bones in the skull, neck, back, and ribcage
what is the appendicular skeleton
the part of the human skeletal system that consists of the bones in the limbs (arms and legs) and their supporting structures.
what is the whole skeletal system a part of
the musculoskeletal system
what are the three types of muscels
smooth cardiac and skeletal muscel
