First Chunk: week 1 basics Flashcards
how much motion would you expect a fibrous joint to have?
depends on what connective tissue unites them.
name three types of fibrous joints, and expected movement
suture (little) syndesmosis (some) gomphosis (some–tooth)
name a syndosmosis joint in the body, and the type of ligament used
ulnar/radial, interosseus ligamunt
what is the purpose of proprioceptive information from your teeth?
how hard you are chewing
Where do you find cartilaginous joints?
at growth plates (hyaline, or sternum) pubic symphosis intervertebral disk
difference between a primary and secondary cartilaginous joint?
hyaline unites primary, fibrocartilage unites secondary.
a primary cartilaginous joint is a —-, a secondary cartilaginous joint is a—-
synchondroses, symphyses
what is the purpose of synovial fluid?
nourishes the articular cartilage, lubes the joint surface
what is Hilton’s law?
nerves supplying a joint also supply the muscles moving the joint, and the skin covering their attatchments
where are the nerve endings in a joint?
in the joint capsule
where are the arteries and veins that supply the synovial joint located?
in the synovial membrane
this type of joint would generally have no motion
a synarthroses
this type of joint would generally have limited motion
an amphiarthroses
this type of joint would generally have a lot of motion
diarthroses
which two types of joints don’t have a joint capsule?
cartilaginous joints and fibrous joints
synovial joints are often reinforced by ligaments, why
they have a greater range of motion– need more stability
where do these ligaments on synovial joints come from?
often thickened parts of the capsule
what is the periosteum?
connective tissue surrounding the bone, blends into the fibrous joint capsule
what is the function of articular cartilage?
reduces friction and protects the underlying bone
is there blood within the synovial joint?
no, it is filtered into synovial fluid
two functions of the miniscus of the knee?
distributes forces, and helps with joint congruency
what is the function of nerves in the articular capsule?
monitor capsular stretch, so pain and proprioception
two reasons why risk of ankle sprin is increased after a previous sprain
biomechanical (increased laxity) neuromotor (reduced proprioception
is the extensive blood supply to the joint for the cartilage?
no, mainly for the synovial fluid
