biceps brachii


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Related to biceps brachii: triceps brachii, brachioradialis, Brachialis

biceps brachii

(brā′kē-ī′, -kē-ē′, brăk′ē-ī′, -ē-ē′)
n.
See biceps.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

biceps brachii

A two-headed major muscle of the arm.

Long head
Origin
Supraglenoid tuberosity.
 
Insertion
Tuberosity of radius, bicipital aponeurosis to fascia of forearm.

Action
Flexes arm and forearm.
 
Short head
Origin
Apex, coracoid process of scapula.
 
Insertion
Tuberosity of radius, bicipital aponeurosis to fascia of forearm.
 
Action
Supinates hand.
 
Nerve
Musculocutaneous, coracobrachialis and brachialis nerves.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
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BICEPS BRACHII

biceps brachii

The muscle of the upper arm that flexes the elbow and supinates the forearm.
See: illustration
See also: biceps
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
[12] In the present case, the area where plaque and screw angulated under the scarred and contracted skin in the elbow joint which is the most common location of the wound dehiscence was covered with the biceps brachii muscle and by this way; direct contact of the instruments with the skin was prevented.
Sweiter and Carmichael [20] emphasised that the incidence of additional heads of biceps brachii is more on the right side reflecting the fact that there were more right-handed people than the left handed and that the muscle fibre developed with use.
Rupture of the biceps brachii tendon is relatively uncommon.
[R.sub.muscles] (muscles = PM, AD, MD, PD), the standardized coefficients between the strength at elbow and the activation of muscles (pectoralis major(PM), anterior deltoid (AD), intermediate deltoid (MD), posterior deltoid (PD)); [R.sub.muscles] (muscles = BB, TB, BR), the standardized coefficients between the strength at shoulder and the activation of muscles (biceps brachii (BB), triceps brachii (TB), brachioraialis (BR)).
Finally, the scope of the investigation was restricted to isometric exertions with force produced by the biceps brachii muscle occurring at an elbow flexion angle of 90[degrees].
Hence, it is difficult to recommend one procedure over the other, especially if the quantification of the potential deficit of the biceps brachii muscle function cannot be performed [8-11].
The tip of the CP and the conjoined tendons (the short head of the biceps brachii and the coracobrachialis) were identified, and after splitting the tendons in line with the fibers, the CP was fully exposed.
In terms of some of the more frequently biopsied muscles, type 2 fiber predominance would then be defined as approximately more than 55% in the biceps femoris, more than 70% in the biceps brachii, more than 73% in the vastus lateralis, and more than 59% in the deltoid.