Biceps brachii

Musculus biceps brachii

A two-headed muscle in the anterior compartment of the upper arm. The long head originates from the supraglenoid tubercle of the scapula, and the short head from the coracoid process. Both heads insert on the radial tuberosity and bicipital aponeurosis.

Type Muscle
Body System Muscular
Body Region Upper Arm
Parent Structure forelimb stylopod muscle
Latin Name Musculus biceps brachii
FMA ID 37670

Function

Primary supinator of the forearm and powerful flexor of the elbow. Also assists in shoulder flexion. The long head assists in shoulder joint stabilization.

Clinical Significance

Biceps tendon ruptures cause a visible bulge (Popeye deformity). Bicipital tendinitis causes anterior shoulder pain. The biceps reflex tests the C5-C6 nerve roots.

Frequently Asked Questions

What is the Biceps brachii?
A two-headed muscle in the anterior compartment of the upper arm. The long head originates from the supraglenoid tubercle of the scapula, and the short head from the coracoid process. Both heads insert on the radial tuberosity and bicipital aponeurosis.
What is the function of the Biceps brachii?
Primary supinator of the forearm and powerful flexor of the elbow. Also assists in shoulder flexion. The long head assists in shoulder joint stabilization.
What body system is the Biceps brachii part of?
The Biceps brachii is part of the Muscular.
What conditions affect the Biceps brachii?
Biceps tendon ruptures cause a visible bulge (Popeye deformity). Bicipital tendinitis causes anterior shoulder pain. The biceps reflex tests the C5-C6 nerve roots.
Where is the Biceps brachii located?
The Biceps brachii is located in the Upper Arm region of the body.

Related Structures

anterior internodal tract anterior internodal fasciculus aponeurosis aponeuroses atrioventricular node A-V node Bachmann's bundle anterior interatrial band bundle of His A-V bundle cardiac muscle tissue of myocardium cardiac Purkinje fiber cardiac Purkinje fiber cartilage tissue cartilage

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