Anatomy & Phys: Joints
all synovial joints are
diarthrotic
The ankle is able to ______________ when pulling the foot and toes up toward the shin.
dorsiflex
straightening the elbow from a bent position is an example of...
elevation
turning the ankle so that the sole of the foot points laterally
eversion
Sam is doing leg presses, _________ his knees as he pushes against the weights.
extending
What class of joint consists of bone ends held together by collagenous tissue?
fibrous
syndesmosis
fibrous, amphiarthrotic
gomphosis
fibrous, synarthrosis
suture
fibrous, synarthrotic
george is lifting weights. he starts by doing biceps curls which involves this with his elbows
flexing
bending of a joint
flexion
Diarthrotic
freely movable
-located at the union of a cone shaped bony process in a bong socket -synarthrotic
gomphosis
peg like root of a tooth held in jawbone by periodontal ligament
gomphosis
his elbow is able to bend because the humero-ulnar joint is this
hinge joint
Synarthrotic
immovable
turning the ankle so that the sole of the foot points medially is called
inversion
The knee joint is primarily a _____ joint.
modified hinge
pivoting of the radius against the ulna turns the palm down and back
pronation
the head does what when shaking the head to say "no"
rotates
Ampiarthrotic
slightly movable joint
pivoting of the radius against the ulna turns the palm forward and/or upward. this movement is called
supination
-found between the flat bones of the skull -thin layer of connective tissue that connects bones -synarthrotic
suture
3 types of fibrous joints
sutures, syndesmoses, gomphoses
types of cartilaginous joints
synchondroses and symphyses
-bones bound by a sheet or bundle of dense connective tissue -amphiarthrotic -lies between tibia and fibula -interosseous membrane
syndesmosis
ball and socket
synovial, diarthrotic
condylar
synovial, diarthrotic
hinge
synovial, diarthrotic
pivot
synovial, diarthrotic
plane joint
synovial, diarthrotic
saddle joint
synovial, diarthrotic
saddle joint
type of joint found at the base of each thumb; allows grasping and rotation -biaxial movement -ex: carpal and metacarpal of thumb -seller joint
ball and socket joint
-also called spheroidal joints -round head in cup shaped cavity -widest range of motion -ex: hip and shoulder
pivot joint
-also called trochoid joint -cylindrical surface rotates within ring of other bone -uniaxial movement; rotation only ex: atlas (C1) and debs of axis (C2)
symphysis
A type of joint that has grown together forming a very stable connection. -pubic symphysis, joints between bodies of adjacent vertebrae (intervertebral discs)
condylar joint
Also called ellipsoidal joint Oval condyle fits into elliptical cavity Back-and-forth, side-to-side movement Biaxial movement, no rotation Joints between metacarpals & phalanges
plane joint
Also called gliding joint Almost flat, or slightly curved Back-and-forth and twisting Nonaxial movement Wrist and ankle joints
hinge joints
Contains the convex surface of one bone fitting into a concave surface of another bone. Movement is primarily flexion and extension. Example: the elbow, ankle, and interphalangeal joints.
when doing jumping jacks, the feet are spread apart by
abduction
meanwhile, jane is doing "lat pulls" by pulling downward on a weighted bar. this movement involves this of her arms
adduction
Synchondrosis
an almost immovable joint between bones bound by a layer of cartilage, as in the vertebrae. -between manubruym and the first rib (coastal, cartilages, permanent, synarthrotic)
Her shoulder joint is a ___________ joint, allowing a wide range of movements.
ball and socket
symphysis
cartilaginous joint, amphiarthrotic
Joints in which the bone ends are bound together by hyaline cartilage or fibrocartilage are classified as:
cartilaginous joints
are connected by hyaline cartilage or fibrocartilage
cartilaginous joints
synchondrosis
cartilaginous, ampiarthrotic
