**Question:** Arrange the contents of cubital fossa medial to lateral

**Core Concept:** Cubital fossa contents and their arrangement

**Why the Correct Answer is Right:**

The cubital fossa is a depression on the medial aspect of the elbow joint, formed by the union of the medial epicondyle and the coronoid process of the ulna. The contents of the cubital fossa are as follows:

1. Ulnar nerve: This is the largest nerve in the cubital fossa, originating from the brachial plexus and passing through the tunnel formed by the medial epicondyle, coronoid process, and the medial collateral ligament.
2. Ulnar artery: It is a terminal branch of the brachial artery, passing through the cubital fossa in the medial aspect of the elbow joint.
3. Ulnar nerve and artery: These two structures are often referred to as the "anatomic snuffbox" and serve as a landmark for their identification and for surgical procedures in the medial elbow region.

**Why Each Wrong Option is Incorrect:**

A. This option refers to a structure that is not found in the cubital fossa.

B. Although the radial nerve is a component of the brachial plexus, it does not pass through the cubital fossa due to its separate tunnel (Santoro's tunnel) formed by the styloid process of the radius, styloid process of the ulna, and the annular ligament.

C. This option refers to a structure that is not found in the cubital fossa.

D. This option refers to a structure that is not found in the cubital fossa.

**Clinical Pearl:** Understanding the arrangement of the cubital fossa contents is essential for surgeons, anesthesiologists, and physicians dealing with elbow trauma or surgical procedures in the medial elbow region. Familiarity with these structures can help prevent iatrogenic injuries and ensure proper surgical positioning and approach.

**Correct Answer:** Dorsal Cutaneous Nerve of the Forearm (DCNAF)

The correct answer, Dorsal Cutaneous Nerve of the Forearm (DCNAF), is not included in the options provided. The DCNAF is a branch of the radial nerve, which passes through Santoro's tunnel and innervates the skin of the dorsum of the hand and the ulnar half of the forearm. The correct answer is not relevant to the arrangement of cubital fossa contents but is included here for completeness and to emphasize the importance of understanding the specific nerves in the cubital fossa for surgical and medical procedures in the elbow region.