Which of these is considered a sesamoid bone that increases the leverage of the

Question

Which of these is considered a sesamoid bone that increases the leverage of the tendon of the quadriceps musle when the joint is bent. a. Patella b. Greater trochanter c. Lateral epicondyle True or false: Another name for a joint is an articulation and ultimately joints hold bones together but permit movement. a. True b. False When considering the functional classification of joints based on movement, which of these describes and immovable joint? a. Synarthrosis b. Amphiarthrosis c. Diarthrosis. When considering the functional classification of joints based on movement, which of these describes the slightly movable joint? a. Synarthrosis b. Amphiarthrosis c. Diarthrosis When considering the functional classification of joints based on movement, which of these describes the freely movable joint? a. Synarthrosis b. Amphiarthrosis c. Diarthrosis True or false: Sutures of the skull are considered diarthrosis? a. True b. False

Explanation / Answer

65. Trochanter is a part of femur connecting to hip bone. It has no role in extending the leverage.

Lateral epicondyle of femur gives attachment to collateral ligament of knee joint. It also has no role in increasing the leverage.

Patella is a thick triangular bone that joins with thigh bone femur and protects the anterior surface of knee joint. It increases the leverage that tendon can exert on femur by increasing the angle on which it acts. In turn patella is attached to tendon of quadriceps muscles which contracts to straighten the knee. Thus it is patella that increases the leverage of tendon of quadriceps muscles when knee is bent or straighten.

Thus option a is correct.

Please ask each question separately as we answer one question at a time.

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