Connection lost. Please refresh the page.
Get help How to study Login Register
Ready to learn?
Pick your favorite study tool

Bicipital aponeurosis

Recommended video: Biceps brachii muscle [01:33]
Origin, insertion, innervation and functions of the biceps brachii muscle.

The bicipital aponeurosis, also known as the lacertus fibrosus, is a broad membranous band extending from the tendon of the biceps brachii to insert into the deep fascia of the anterior forearm. In its course, it crosses the cubital fossa, forming a deep part of its roof and therefore protecting the brachial artery and median nerve running deep to it within the fossa. The median cubital vein crosses the bicipital aponeurosis superficially as it connects the basilic and cephalic veins.  

The bicipital aponeurosis also assists in decreasing the pressure on the radial tuberosity by the the biceps brachii tendon during forearm pronation and supination. It is palpable proximally where it passes obliquely over the medial nerve and brachial artery.

Terminology English: Bicipital aponeurosis
Latin: Aponeurosis bicipitalis
Definition Broad membranous band extending from the biceps brachii tendon and inserting into the deep fascia of the forearm
Function Forms part of the cubital fossa roof and protects contents (median nerve, brachial artery)

Learn more about the main muscles of the upper limb with this study unit (and article):

Bicipital aponeurosis: want to learn more about it?

Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster.

What do you prefer to learn with?

“I would honestly say that Kenhub cut my study time in half.” – Read more.

Kim Bengochea Kim Bengochea, Regis University, Denver
© Unless stated otherwise, all content, including illustrations are exclusive property of Kenhub GmbH, and are protected by German and international copyright laws. All rights reserved.

Register now and grab your free ultimate anatomy study guide!