Ar saddle B. gliding 26. An immovable joint is a(an) C. ellipsoidal D. hinge E.p

Question

Ar saddle B. gliding 26. An immovable joint is a(an) C. ellipsoidal D. hinge E.pivot synarthrosis B. diarthrosis C. amphiarthosis D. syndesmosis E. symphysis 27. A freely movable joint is a(an) A. synarthrosis diarthrosis C. amphiarthrosis D. syndesmosis 28. Dense connective tissue is to a suture as a periodontal ligament is to a(an) E. symphysis A. ampharthrosis B. syndesmosis C.synostosis 29. Which of the following is NOT a function of synovial fluid D. synchondrosis E. gomphosis A. shock absorption B. increase osmotic pressure within joint C. lubrication D. provides nutrition E. protect articular cartilages 30 Decreasing the angle between bones is termed 31. The opposite movement of pronation is 32. Triaxial (mutiaxial) joints are known as 33. Nodding your head up and down is an example of A. flexion B. extensionC. abduction D. adduction E. hyperextension A. Dorsiflexion B. hyperextension C. circumduction D. supination E. rotation A. saddle B. gliding C. ball-and-socket D. ellipsoidal E. hinge A. lateral and medial rotation B. flexion and extension C. circumduction joints D. pronation and supination E. protraction and retraction

Explanation / Answer

26) Immovable joint is synarthrosis. Examples are the sutures of the skull. Slightly movable joint is amphiarthrosis. Intervertebral cartilagenous joints and public symphysis are examples of amphiarthrosis. Freely movable joint is diarthrosis. Elbow joint is an example of diarthrosis.

27) Freely movable joint is diarthrosis. Example: elbow joint.

28) Periodontal ligament is a specialised connective tissue fibers that attaches tooth to its socket in the alveolar bone. It is a type of gomphosis (option E).

29) Synovial fluid provides nutrition, acts as a shock absorber, lubricates the joint and protect articular cartilage. Therefore, the answer for this question is option B (synovial fluid increase osmotic pressure within the joint).

30) Decreasing the angle between bones is called as flexion.

31) The opposite movement of pronation is supination.

32) Triaxial joints are known as ball and socket joints because the movements occur in three planes.

33) Nodding the head up and down is an example of flexion and extension.

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