chapter 3 (articular system) Flashcards
joint
connection of 2 bones
functions of joint
allow motion, absorb force, provide stability
Fibrous Joint
Thin layer of fibrous periosteum between the two bones
3 types of fibrous joint
synarthrosis, syndesmosis, gomphosis
synarthrodial (suture), motion?
thin layer, provides support, skull. no motion
syndesmosis (ligamentous)
plenty of fibrous tissue, small amount of twisting(radius, ulna, tibia, fibula)
gomphosis
bolting together ( tooth and dental socket
Cartilaginous = Amphiarthrodial
allow small amount of motion, hyaline cartilage
Synovial = Diarthrodial ex.
allows free motion, cavity filled with synovial fluid. hip, elbow, knee
join structure of synovial fluid components
bones, ligaments, synovial fluid, cartilage, muscles, bursae
bones
two articulating
ligaments
holds bones together. fibrous connective tissue
capsule
surrounds and incase the joint, protect bone
Synovial Fluid
thick-white fluid, lubricate, provide shock absorption
Cartilage
dense fibrous tissue, hold great tension
types of cartilage tissue
hyaline, fibrocartilage, elastic
Hyaline = Articular Cartilage
ends of opposing bones
Fibrocartilage
shock absorption, holds great weight
Elastic Cartilage
certain amount of motion
muscles
provide contractile force that cause joints to move
bursa
fluid-filled sac, area of excessive friction
sprain
tear or stretch in ligaments
strain
stretch or tear in muscle or tendon
components of synovial joint
ligaments, capsule, synovial fluid, cartilage, bone, muscles
sagittal plane
passes from front to back, makes left and right. flex and extension. frontal axis.
frontal plane
side to side, makes front and back. adduct/abb. sagittal axis.
transverse plane
divide body into top/bottom. rotations, vertical axis.
