KNOW YOUR NERVES: THE LATERAL ANTEBRACHIAL CUTANEOUS NERVE

Understanding the human body is a complex task, but it’s made easier when we break it down into individual components. One such component that plays a crucial role in our body is the nervous system. In this blog post, we will focus on a specific nerve: the Lateral Antebrachial Cutaneous Nerve. We will explore its anatomy, functions, and potential injuries.

Lateral Antebrachial Cutaneous Nerve: An Overview

The lateral antebrachial cutaneous nerve is an extension of the musculocutaneous nerve. It lies distal to the muscular branches and is present lateral to the biceps brachii on the brachioradialis, alongside the cephalic vein early in its path down the forearm. It continues down the lateral aspect of the forearm to the wrist. Understanding this nerve’s anatomy can help medical professionals diagnose and treat various conditions.

Clinical Pearls: Injuries to the Lateral Antebrachial Cutaneous Nerve

The Lateral Antebrachial Cutaneous Nerve (LAB) can get entrapped in the distal biceps or the brachialis muscle, causing pain and numbness. This discomfort typically follows the radial aspect of the forearm into the thumb. Many patients report an insidious onset, but entrapment of this nerve can be caused by repeated elbow extension with pronation, an acute trauma to the elbow, or even rupture of the long head of the biceps. Patients may also report discomfort with activities like typing or playing the piano. This information can be crucial in diagnosing and treating nerve entrapment syndromes.

Equipped with Knowledge

Understanding our body’s nervous system is not just for medical professionals. Having a basic understanding can help us make more informed decisions about our health and well-being, and selecting our own healthcare providers. Whether you’re a student studying anatomy or just someone curious about how your body works, we hope this post has equipped you with valuable knowledge about the Lateral Antebrachial Cutaneous Nerve.

Follow us for More Nerve Education

Stay tuned to our blog for more detailed and informative posts about the human nervous system. Our aim is to educate and enlighten our readers about the intricacies of the nervous system of the human body. Follow us to stay updated @integrativedryneedling !

Sources:

Clinically Oriented Anatomy; Keith L Moore et al; 8th edition

“Lateral Antebrachial Cutaneous Nerve Entrapment at the Elbow” published in Anesthesia Key on September 9, 2019. https://aneskey.com/lateral-antebrachial-cutaneous-nerve-entrapment-at-the-elbow/