Subscapularis Muscle - Essay Example

5. What action does the Supraspinatus muscle perform? Ans-Supraspinatous helps to abduct the arm and stabilizes the shoulder joint.  6. Where is the transverse humeral ligament? The answer-Transverse humeral ligament is present in between greater and lesser tuberosity of the Humerus.  7. What happens to the long head of the biceps tendon when the transverse humeral ligament is ruptured?   Ans- Transverse humeral ligament stretches in between greater and lesser tuberosity to position the long head of the bicep brachii in the bicipital groove.

Rupture of transverse humeral ligament results in dislocation of the long head of bicep tendon.  8. Describe the course of the long head of biceps tendon Ans- Long head of biceps tendon arises from supraglenoid tubercle of the scapula and further lies in the capsule of the shoulder joint. It emerges from there in a hiatus between the tendons named Subscapularis and Supraspinatous tendons.   It passes through the bicipital groove, where it joins with the short head of the bicep tendon and distally attaches to the radial tuberosity.  9. What is the function of bursae?

Ans-Bursae act to allow easy movement of one part upon another. Some even lie between the skin and bony prominences, such as the kneecap or elbow, and allow the skin to move with less friction over the underlying parts.  10. What is a sesamoid bone? Ans- Patella, situated anterior to the knee joint is a sesamoid bone as it is embedded within the tendon of the quadriceps femoris muscle.  11. Name two bursae that communicate with the knee joint capsule Ans-Popliteal burse and suprapatellar bursa-these two bursae communicate with the knee joint capsule.

  12. Where is the most common location for a Baker's Cyst?   Ans- The commonest location for Baker’s Cyst is the synovial cavity of the knee joint.  13. What is attached to the medial aspect of the medial collateral ligament? Ans- medial meniscus is attached to the medial aspect of the medial collateral ligament of the knee.  14. What two tendons are located posterior to the fibular? Ans- Flexor hallucis longus and Tibialis Posterior is located posterior to the Fibular shaft.