7 Flashcards
What is a joint?
2 or more bones meet classified by function and structure
where there is a cavity
where the bone is able to flex due to cartilage
2 or more bones meet
immovable joint between bones connected by fibrous tissue as for the sutures of the skull
synarthrose
diarthrose
amphiarthrose
synarthrose
joint allows slight movement such as the distal joint between the tibia and the fibula and the pubic symphysis of the pelvic girdle
synarthrose
diarthrose
amphiarthrose
amphiarthrose
joint moves freely mobile as for all synovial joint
synarthrose
diarthrose
amphiarthrose
diarthrose
not a structural types of tissues within joints
fibrous
cartilaginous
synovial
synpatic
synpatic
fibrous joint 2 bones interlocked with very short CT (skulls as sutures)
gomphoses
syndesmose
synostose
synostose
fibrous joint joint holds a tooth no movement
gomphoses
syndesmose
synostose
gomphoses
fibrous joint little movement held by ligaments or interosseous membrane of fibrinous CT
gomphoses
syndesmose
synostose
syndesmose
cartilaginous joint appears at joints of areas of growth such as epiphyseal plates between sternum and each of the first 7 ribs
synchondroses
synostose
symphyses
synchondroses
cartilaginous joint by fibrocartilage with hyaline cartilage strength and flexibility (pubic symphysis and intervertebral joints)
synchondroses
synostose
symphyses
symphyses
why is there articular cartilage covering oppsoing bone surface?
scientist are ensure of its feature
to stop quick movements
increase size of bones
so its slippery and cushioned
so its slippery and cushioned
what help reduce friction
synovial fluid in joint cavity
what is a bunion
enlarged bursa at the base of big toe
enlarged bursa at the base of pinky toe
fluid filled between epidermis and dermis
enlarged bursa at the base of big toe
where can i find articular joint
hip and knee joint
shoulder and socket joint
knee and jaw joint
knee and jaw joint
tendon sheaths are also considered elongated ________ to reduce friction
ligament
joint
bursa
fibrous layer
periosteum
bursa
do hip joints have good or bad stability?
good because it is a deep ball and socket
do shoulder joints have good or bad stability?
bad because shallow joints are easier to dislocate
ligaments help to
aid in stretching
resist stretching
resist stretching
how far can you stretch a ligament before it breaks
7mm
6%
5mm
4%
6%
why is it important to not overstretch ligament and joint capsules after joint dislocation
it is more common for it to dislocate more often
torn ligament without joint dislocation are considered
minor disrepair
sprains
twist
snaps
sprains
ligaments have very good vascularization so they are easy to heal after injury, this is why sprained ankles heal quickly
T OR F
F
where are cartilage injuries most common (it repairs slowly)
knee
arm
finger joints
neck
knee
plain joint
allows sliding movements
hinge joint
allows flexion and extensions (elbow)
pivot joint
insertion into a ring or sleeve (ulna and radius)
condylar joint
oval motion in all planes (knuckle)
saddle joint
greater motion (base of thumb) (lego hands)
offers greatest (shoulder jointsamount of motion)
ball and socket
