chapter 8 Flashcards
rheumatoid arthritis
chronic long- lasting autoimmune disease that mostly affects the joints
patellar ligaments
connects apex of patella to the tibia
cruciate ligaments
two cruciate ligaments. ACL is in the center of the knee, controls rotation and forward movement of the tibia
ligaments
band of tissue that helps connect bones, joints and organs to hold them in place. more ligaments= stronger joint
function of articular cartilage
hyaline cartilage that absorbs compression placed on the joint keeping bone ends from crushing. THIN GLASSY SPONGY
cartilaginous joints
adjoining bones united by cartilage. Immobile.
gliding movement
semi- flate bone surface glides or slips over another (side- to side)
protraction
anterior movement of the scapula or mandible
plantar flexion
moving the foot down inferiorly
dorsi felxion
moving foot upwards, towards the sky
inversion
sole of foot turns medially
eversion
sole faces laterally
abduction
moving arm away from moving
adduction
moving arm back towards body, towards midline
hyperextension
moving head all the way backwards
flexion
bending the head all the way forwards, chin touching chest
opposition
saddle joint where fibrocartilage unites bone
fibrocartilage
compressible and resilient
structure of synovial joints
adjoining bones covered with articular cartilage, separated by joint cavity, enclosed within an articular capsule lined with synovial membrane
fibrous joints
immovable bones that are joined by collagen fibers of connective tissue with no joint cavity. 3 types
types of fibrous joints
sutures: ridges that have connective tissue between them and solely fuse together
syndesmoses: bones connected by ligaments which are bands of fibrous tissue
gomphoses: peg- in- socket fibrous joint
