All are true about proximal humerus attachment except –
**Core Concept**
The proximal humerus has several key attachments that are crucial for the function and stability of the shoulder joint, involving **muscles**, **tendons**, and **ligaments**. The **supraspinatus**, **infraspinatus**, **teres minor**, and **subscapularis** muscles are attached to the proximal humerus.
**Why the Correct Answer is Right**
Since the question is incomplete, let's discuss a general concept: the proximal humerus is the attachment site for the **rotator cuff muscles** and the **long head of the biceps**. These attachments are vital for shoulder movement and stability.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific details, we cannot directly address why each option is incorrect. Normally, we'd discuss how each option might not accurately describe an attachment or might misrepresent the anatomy of the proximal humerus.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the **rotator cuff muscles** play a significant role in stabilizing the shoulder joint and facilitating movements such as abduction, internal rotation, and external rotation.
**Correct Answer:** D. No specific details are provided to accurately fill in this section based on the question given.