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38 Cards in this Set
- Front
- Back
The inner layer of the articular capsule; composed or areolar connective tissue is called?
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synovial membrane
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The synovial membrane secretes a viscous, fluid called?
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synovial fluid
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What are the three functions of the synovial fluid?
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1. reduce friction
2. absorbs shock 3. supplies oxygen |
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Many synovial joints also contain accessory ligaments? T/F
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TRUE
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This type of ligament lies outside the articular capsule?
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extracapsular ligament
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This type of ligament occurs within the articular capsule but are excluded from synovial cavityby folds of the synovial membrane?
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intracapsular ligament
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Pads of fibrocartilage that lie b/t the articular surfaces of bones and are attached to the fibrous capsule are called?
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articular discs or minisci
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Which of the following is a function of the menisci?
A. subdivides synovial cavity into 2 spaces B. modifies shape of joint surfaces C. help maintain stability of the joint D. All the above |
D. All the above
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The nerves that supply a joint are the same as those that supply the skeletal muscles that move the joint? T/F
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TRUE
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The forcible wrenching, twisting of a joint that stretches or tears its ligaments but does not dislocate the bone?
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sprain
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A stretched or partially torn muscle?
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strain
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A sac-like structure situated to alleviate friction in some jonts?
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bursae
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Tube-like bursae that wraps around certain tendons that experience considerable friction?
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tendon sheath
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A decrease in the angle b/t the articulating bones?
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flexion
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An increase in the angle of the articulating bones?
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extension
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To move away from the midline?
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abduction
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To move towards the midline?
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adduction
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Movement of the distal end of a body part in a circle?
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circumduction
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A bone revolves around its own longitudinal axis?
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rotation
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Movement of an anterior surface of a bone turned toward the midline?
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medial (internal) rotation
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Movement of anterior surface of a bone is turned away from the midline?
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lateral (external) rotation
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An upward movement of a body part?
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elevation
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A downward ovement of a body part?
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depression
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A movement of a part of the body anteriorly in the transverse plane?
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protraction
(i.e; movement of the mandible outwards) |
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Movement of a protracted body part back to anatomical position?
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retraction
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Movement of the soles medially at the intertarsal joints?
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inversion (soles face each other)
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Movement of the soles laterally at the intertarsal joints?
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eversion (soles face away from each other)
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Bending of the foot at the ankle or talocrural joint?
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dorsiflexion -when you stand on your heels-
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Bending of the foot at the ankle joint in the direction of the plantar or inferior surface?
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plantar flexion -when you stand on your toes-
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Movement of the forearm at the proximal and distal radioulnar joints in which the palm is turned anteriorly?
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supination *think of hand as a bowl for soup*
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Movement of the radioulnar joints in which the distal end of the radius crosses over the distal end of the ulna, palm is turned posteriorly?
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pronation
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Movement of the thumb at the carpometecarpal joint which the thumb moves across the palm to touch the tips of the fingers on the same hand?
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opposition
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Movement in which relatively flat bone surfaces move back and forth & side to side w/ respect to one another?
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planar joint (gliding joint)
AKA: Arthroidal joint<SB!! |
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Convex surface of one bone articulates w/ concave surface of another bone; permits flexion & extension?
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hinge joint
AKA: Ginglymus joint<SB!! |
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Rounded or pointed surface of one bone articulates w/ a ring formed by another bone bone & ligament; allows rotation around its own axis?
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pivot joint
AKA: Trochoid joint<SB!! |
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Convex, oval projection of one bone fits into oval depression of another bone; permits movement in 2 axis?
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condyloid joint
AKA: Ellipsoidal joint<SB!! |
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Modified condyloid joint where articulating bones resemble a rider sitting in a saddle;perits opposition?
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saddle joint
AKA: Sellaris joint<SB!! |
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Ball-shaped surface of one bone articulates w/ cup-like depression of another bone;permits largest degree of movement in 3 axes?
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ball and socket joint
AKA: Spheroid joint<SB!!! |