skeleton Flashcards
axial bones
80 bones divided into the skull, vertebral column, and thoracic cavity
appendicular bones
limbs, pelvis, and shoulder
trabeculae
part of spongy bone the holds red bone marrow
yellow marrow
stores enery as fat
epiphysis
ends of long bones w red bone marrow
diaphysis
shaft of bone
osteons
run parallel to bone axis
lamellae
part of osteon filled with callagen fibers
central canal
holds nerves and blood vessela
lacunae
house osteocytes
resorption
tear down of bone
atlas
holds up the skull
vertebral bones
1-7 cervical (7)
8-19 thoracic (12)
20-25 lumbar (5)
synarthroses
non-moving joints
amphiarthroses
partly moving joints
diathroses
fully movable joints
fibrous joints
connect bones with dense fibrous connective tisse, dont move (skull)
cartiligenous joints
unite bones with cartilage and don’t move much
2 types of cartilegenous joints
- synchrondroses- hyaline don’t move- sternocostal
2. symphyses-slight move- vertebral joints
synovial joints
joint cavity w synovial fluid
6 synovial joint types
- plane (wrist)
- hinge- elbow
- condylar/gliding-
- pivot-
- ball and socket
- saddle- thumbs
flexion
decrease the angle
extension
increase the angle
abduction
move arms away from body
adduction
move arms toward body
supination
rotate forward/anterior
pronation
rotate backwad/ posterior