Which nerves are primarily involved in Erb's Palsy?

Erb's Palsy is a condition that occurs due to injury to the upper trunk of the brachial plexus, typically resulting from excessive stretching of the arm away from the body during birth or a traumatic event. The nerves that are primarily affected in this condition include the suprascapular nerve, the musculocutaneous nerve, and the axillary nerve.

The suprascapular nerve innervates the supraspinatus and infraspinatus muscles, which are crucial for shoulder stability and abduction. The musculocutaneous nerve innervates the biceps brachii and brachialis muscles, integral for elbow flexion. The axillary nerve innervates the deltoid and teres minor muscles, playing a significant role in shoulder abduction and external rotation. Damage to these nerves can lead to weakness in the shoulder and arm, characteristic of Erb's Palsy.

The other options list nerves that are either from different regions of the body or are involved in different types of peripheral nerve injuries. They do not pertain to the brachial plexus or upper trunk involvement seen in Erb's Palsy, making them irrelevant to the specific condition described. Thus, the involvement of the suprasc