Anatomy chapter 8: the skeletal system articulations (exam #2)
synostosis
fusion of 3 coxal bones
bony fusion
fusion of the frontal bone
rheumatism
general term indicating pain and stiffness affecting the skeletal system
synathrosis
immoveable joints
articulation
joint
ellipsoid joint
joint where an oval articular face nestles within a depression on the opposing surface
ball- and- socket joint
joint where the round head of one bone resets within a cup-shaped depression in another
saddle joint
joints that have complex articular faces, they are concave on one axis and convex on the other axis
gliding joint
joints that have fattened or slightly curves surfaces that slide across one another, amount of movement is slight
syndesmosis
ligaments that connect 2 bones but limit their motion
linear movements
two bones gliding past each other ex. carpal/ carpal
synovial joint
ball- and- socket joints and hinge joints
synchondrosis
binds the diaphysis to the epiphysis
symphysis
bones are separated by a wedge or pad of cartilage
sutures
bones interlocked together
angular motion
changes the angle between the shaft and the articular surface, ex. abduction/ adduction
arthritis
damage to the articular cartilages, encompasses the rheumatic diseases that affect synovial joints
synovial fluid
lubricates he surfaces of the articular cartilages and reduces friction, acts as shock absorber
structure (of a joint)
makeup of the joint
flexion
movement in the anterior- posterior plane that reduces the angle between articulating elements
circumduction movements
moving the joint in a circular manner
intervertebral discs
pads of cartilage between the vertebral bodies of adjacent vertebrae
menisci
pads of fibrous cartilage that may subdivide a synovial cavity, channel the flow of synovial fluid, allow for variations of shape of the articular surfaces, and restricts movement
gomphosis
periodontal ligaments of the teeth
hinge joint
permit angular motion in a single plane
hinge joints
permit angular movement in a single plane, a non axial joint
pivot joint
permits rotation only
cartilaginous joint
pubic symphysis
anatomical design
range and function of a joint depend on__________
function (of a joint)
range of motion of a joint
fibrous joint
skull sutures
amphiarthrosis
slightly moveable joints
musculoskeletal system
the system that the muscular and skeletal systems make up
diathrosis or synovial joints
the type of joint specialized for movement and has a wide range of motion