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42 Cards in this Set

  • Front
  • Back
Classification of joints
Fibrous
Cartilaginous
Synovial
Fibrous joint
No synovial cavity, bones held together by dense irregular connective tissue, rich in collagen fibers
Cartilaginous joint
No synovial cavity, bones held together by cartilage
Synovial joint
Bones forming joint have synovial cavity, united by articular capsule
Functional classification of joints
Synarthrosis
Amphiarthrosis
Diarthrosis
Synarthrosis
An immovable joint
Amphiarthrosis
Slightly movable joint
Diarthrosis
Freely movable joint
Articular capsule
Surrounds a synovial joint, composed of fibrous & synovial membrane; many have fat pads(adipose tissue)
Synovial fluid
Hyaluronic acid secreted by fibroblast-like cells. Function: lubricate joint, absorb shock
Menisci
Pads of fibrocartilage lie btwn articular surfaces of bones attached to fibrous capsule
What is a joint?
Point of contact btwn 2 bones, bones & cartilage or bone and teeth
Arthroplasty
Surgical replacement of damaged joint; most common: hip, knee
Suture
Fibrous joint that unites the bones of a skull, synarthrosis: immovable
Syndesmosis
Fibrous joint btwn tibia & fibula, amphiarthrosis, greater distance btwn articulating surfaces
Gomphosis
Articulation btwn bones and teeth
Synchondrosis
Epiphyseal growth plate. Cartilaginous joint where connecting material is hyaline cartilage
Symphysis
Cartilaginous joint, ends of articulating bones are covered with hyaline cartilage, but broad flat disc of fibrocartilage connect bone. Pubic symphysis, amphiarthrosis
Synovial
Joint with cavity btwn bones, diarthrosis
Synostosis
Bony joint, a complete fusion of 2 separate bones into one bone, etc frontal bone.
Hinge joint
Convex surface of 1 bone articulates w/ concave surface of another bone= flexion & extension. Knee
Saddle joint
Modified condyloid joint, articulating bones resemble rider in saddle. Joint btwn trapezium and thumb.
Ball-and-socket joint
Ball shaped surface of 1 bone articulates with cuplike depression in another bones. Largest range of motion. Hip joint.
Planar joint
Articulating bone surfaces are flat or slightly curved=gliding movement. Intercarpal joint
Condyloid joint
Convex oval projection of one bone fits oval depression of another bone. Movement on 2 axes. Radiocarpal
Pivot joint
Rounded/pointed surface of 1 bone articulates w/ ring formed by another bone & ligament. Rotates around own axes. Radioulnar
Elevation
Upward movement of body part
Depression
Downward movement of body part
Adduction
Movement of bone toward midline
Gliding
Flat bone surfaces move back and forth; side to side
Protraction
Movement of body part anteriorly to transverse plane; thrusting out mandile
Circumduction
Movement of distal end of part of body in a circle
Retraction
Movement of protracted part of body back to anatomical position
Inversion
Turn inward, turn up big toe inward
Eversion
Turn outward, movement of sole laterally at intertrasal joint, pick up pinky toe
Dorsiflexion
Bending of foot at ankle, stand on heels
Plantar flexion
standing on toes
Supination
Movement of forearm, palm facing front
Pronation
Movement of forearm, palm turned posteriorly
Opposition
Movement of thumb, touch fingers on same hand
Range of motion (ROM)
Range, measured in degrees of a circle through which bones of a joint can be moved
Temporomandibular joint (TMJ)
Combined hinge & planar joint formed, mandible; only movable joint btwn skull bones