AP Ch 7 2.0 Flashcards
What are the 5 functions of the skeletal system
#1 support #2 protection #3 movement #4 storage #5 hematopoiesis
What are the 4 types of bone?
long, short, flat, irregular
the bones of the head, neck, and torso
axial skeleton
type of synovial joint in which the spherical end of one bone fits into a cuplike socket of another bone or structure. Shoulder joint and hip joint
ball-and-socket joint
small, cushion-like sac found alongside joints, cushioning moving bones
bursa
a hormone secreted by the thyroid that decreases calcium in the blood
calcitonin (CT)
an extremely narrow tubular passage or channel in compact bone
canaliculus
porous bone tissue found inside bone organs; also called trabecular bone
cancellous bone
any tube-like passage at the center of a structure, such as the canal running through the center of the spinal cord or through the center of each osteon in compact bone
central canal
the process of moving the distal end of a body part in a circular path
circumduction
ring of calcified matrix surrounding the Haversian canal
concentric lamella
ellipsoidal joint in which an oval process fits into an oval socket
condyloid joint
shaft of a long bone
diaphysis
freely moveable joint
diarthrosis
region of cancellous (spongy) bone within the wall of a flat bone of the cranium
diploe
the process in which most bones are formed from cartilage models
endochondral ossification
a fibrous membrane that lines the medullary cavity
endosteum
the cartilage plate between the epiphysis and the diaphysis that allows growth to occur; sometimes referred to as a growth plate
epiphyseal plate
end of a long bone
epiphysis
increasing the angle between two bones at a joint
extension
increasing the angle between two bones at a joint
extension
act of bending; decreasing the angle between two bones at the joint
flexion