Which two processes are located just below the head of the humerus?

The greater and lesser tuberosities are key anatomical landmarks situated just below the head of the humerus. They serve as important attachment sites for the rotator cuff muscles. The greater tuberosity is the lateral projection that provides attachment for the supraspinatus, infraspinatus, and teres minor muscles, while the lesser tuberosity, located medially, is where the subscapularis muscle attaches. Their positions relative to the head of the humerus highlight their functional relevance in shoulder mobility and stability, which is critical for upper limb function.

In contrast, the medial and lateral epicondyles are located at the distal end of the humerus and are involved with the forearm's flexor and extensor muscles attachment, not near the head. The radius and ulna tuberosities do not actually exist as such; the terms refer to tuberosities of the bones of the forearm, which are unrelated to the area around the head of the humerus. Lastly, the coracoid and acromial processes are parts of the scapula (not the humerus) and relate to shoulder anatomy but are positioned superiorly, not directly below the head of the humerus. Thus, the greater and lesser tub