joints Flashcards
what is the definition of a joint?
functional junctions between bones
what do joints do?
they bind parts of the skeletal system and allow it to move in response to skeletal muscle contractions
what is the functional classification of a immovable joint?
synarthroses
what is the functional classification of a slightly moveable joint?
amphiarthroses
what is the functional classification of a freely moveable joint?
diarthroses
what does syn- mean?
together
what does amph- mean?
both sides or surrounding
what does dia- mean?
through or across
what does articular cartilage do in joints?
reduces friction and helps absorb shock
what are the 3 functional classifications of joints?
synarthroses, amphiarthroses, diarthroses
what are the 3 structural classifications of joints?
fibrous, cartilaginous, synovial
_______ joints lie between bones that are closely connected
fibrous
the structural classification of joints that are non moveable
fibrous joints
bones in fibrous joints are only separated by __________________
dense connective tissue
sutures, gomphosis, and syndesmoses are an example of which type of joint?
fibrous joints
where can you find sutures?
between skull bones
a cone-shaped peg fits in a socket, or roots of teeth in maxilla and mandible?
gomphosis
what is syndesmoses?
like a suture, but more fibrous tissue
where are syndemoses found?
radius and ulna, tibia and fibula
what are cartilaginous joints?
joints connected by hyaline cartilage/fibrocartilage
what is the name of a structural joint that allows limited movement?
cartilaginous joints
what is an example of a cartilaginous joint?
fibrocartilage between vertebrae
synchondrosis and symphysis are types of ____________ joints
cartilaginous
what is synchondrosis?
hyaline cartilage connecting bones
what is symphysis?
broad, flat discs of fibrocartilage
where can you find synchondrosis?
epiphyseal plates and 1st rib to sternum
where can you find symphysis?
intervertebral joints and pubic symphysis
most joints in the skeletal system are what kind of joints?
synovial joints
what is the structural classification of joints that allow free movement?
synovial joints
synovial joints contain a cavity filled with ___________
synovial fluid