Joints Flashcards
What are joints classified by?
Structure and function
What’s another name for Immovable
and what is it made out of
Synartroses
(function part of joints)
Held by dense collagen which is why there is no movement
What’s another name for slightly movable?
and what is it made out of
Ampiarthroses
(function part of joints)
Held in place by cartilage
What’s another name for freely moveable?
and what is it made out of
Diarthroses
(function part of joints)
Connected by ligaments
Fibrous joints
-what mobility does it have?
Tend to be immovable
-no joint cavity
-sutures of the skull
Synovial joints
-what mobility does it have?
Tend to be freely movable
-most joints are this
-tipped in articular cartilage
Cartilaginous joints
-what mobility does it have?
Large range of mobility
-connected by cartilage
-ex: movement between the tibia/fibula
Gliding movement
occurs when one flat bone surface slips over another
-ankle and wrists
Angular movement
Angle between 2 bones change
(extend, flex, adduct, abduct)
Rotational movement
Turning of a bone around its own axis
(lateral and medial rotation)
(Pronates and supinates)
What are examples of moveable joints?
-ball and socket (of shoulder)
-pivot joint (of elbow)
-hinge joint (of knee)
Hinge joint
-movement
-example
Flexion and extension in ONE plane
ex: The ankle joint
Saddle joint
-movement
-example
Saddle joints allow angular movements with a great range of motion.
ex:the first carpometacarpal joint of the thumb
It is a synovial joint
Gliding plane joint
-movement
-example
Allows only gliding movement
ex: between the tarsal bones of the foot
It is a synovial joint
Ellipsoid joint
-movement
-example
Permits the movement of the bone in two planes with Angular movement
-no rotation
ex: between the metacarpals and phalanges.
-radiocarpal joint
