Flashcards in Joints Deck (68):
What is an articulation
Where two bones come together
The movement at the joint
The study of joints
how are joints classified
by structure and function
what are the different categories of functions of joint classification?
what is synarthrosis
no movement of the joint
joint that moves a little bit
what does a joint that is diarthrosis mean
the joint is freely moveable
what are the different structures in joint classification
in joints, when we gain mobility
we loose stability
connects bone to bone.
they warp around capsule and give support
what kind of tissue holds together fibrous joints
dense regular connective tissue
examples of fibrous joints
sutures - joints of the skull/head
syndesmoses (interosseous) - b/w tibia/fibula and radius/ulna
gomphosis - teeth
what kind of function does gomphosis have?
what kind of function does sutures have?
what are the only bones that are parallel and held together by dense regular tissue?
what kind of function does syndesmoses have?
what is the ligament that holds the tooth to the socket of aveolar process?
how many types of fibrous joints are there
how many types of cartilaginous joints are there? what are they?
what holds cartilaginous joints together?
what kind of cartilage goes from the end of the rib to the sternum?
hyaline cartilage but we call it costal cartilage
costal = rib
flexes but doesn't move
ex growth plate and costal cartilage
ex: articulation point of the pubic bones and intervertebral discs
what is another name for growth plate
what kind of cartilage makes up the pubic symphyses
do we have epithesial cartilage our whole life?
no. epithesial cartilage (growth plate) is gone by late teens.
what holds joints together?
tensions on muscle
how many types of synovial joints are there
but many components
what is the articular capsule made of and what kind of joint is it?
the articular capsule is made out of fibrous membrane and it is a synovial joint.
what is the difference between fibrous membrane and synovial membrane and what kind of joint is it a part of?
part of the synovial joint
fibrous is the outside membrane and synovial membrane is the inside membrane
what are some examples of synarthrosis besides skull?
it flexes because of costal cartilage but it doesn't move
pelvis (3 bones)
what kind of cartilage is in our femur when we are born?
where does the diaphysis grow towards
where does the epiphysis grow towards
where does the diaphysis and the epiphysis meet?
what does synovial fluid do?
it can go from a fluid to a solid crystal (type of arthritis)
what do you have on the ends of all your bones?
hyaline cartilage but we call it articular cartilage
what is the articular fat pads used for? and what color is it?
cushion and energy
it is yellow
what does the meiscus look like?
yellow and solid
comes out like a wedge
when talking about impact, what cushions the bone?
what is bursa?
little capsule wedge of pillow that bone bounces off of when there is a trauma to that joint
whatever tendons run across that joint and the joint pounds on it, we stick bursa there
what is the condition when the fluid inside the bursa crystalizes?
what happens when you cut tendons?
bones become floppier
what do tendons do to the structure of the joint?
connects muscle to bone and give support
give a brief structure of bone and muscle
so you have a muscle and then a tendon on each end and the tendon is what anchors it to the bone
what is an elongated bursa called?
wherever you have a diarthritic joint in your body, what is holding it in place?
tendons and ligaments
what is TMJ stand for?
temple menjibular joint
mastoid: lower jaw
if a joint is broken or destroyed, what can you do to get back to normal?
you either have to replace something in there or strengthen the muscle
where are tendon sheaths located?
in your hand because the muscles are lower down on your forearm
what is the bursitis condition?
hardening of synovial fluid in a bursa
how do you divide the different types of movements at synovial joints
divide into motions and axis
what synovial joints move angular?
humerus and ulna
what do gliding and angular give you
the main five movements
- flexion and extension
- lateral flexion
-abduction and adduction
what does the variation of shape in synovial joints determine?
variation in shape governs the range and type of movements possible
what are the unaxial synovial joints?
what are the biaxial synovial joints?
what are the multiaxial synovial joints?
ball and socket joints?
how many uniaxial joints are there? biaxial? multiaxial
uniaxial - 3
biaxial - 2
uniaxial - 1
what is the most moveable joint we have in our body
what is the least moveable joint in our body
what is the strongest joint in our body
what is the weakest joint in our body
if the joint is highly mobile, what does it have to have more of?
when people have an arthroplasty, what do they really do?
they really just replace the ball and socket