Correct these statements:

1. The Posterior Cord receives contributions from C5 - C7 which the terminal branch of the ulnar nerve arises.

2. The Musculocutaneous nerve receives contributions from only C7 via the medial cord.

3. The Medial cutaneous nerve of the arm and the forearm arises from the lateral cord.

4. The cords are sandwiched between the anterior and middle scalene muscles.

5. I love/hate learning brachial plexus anatomy