biceps

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Related to Biceps brachii muscle: Brachialis muscle

biceps

(bī`sĕps), any muscle having two heads, or fixed ends of attachment, notably the biceps brachii at the front of the upper arm and the biceps femoris in the thigh. Originating in the shoulder area, the heads of the biceps merge partway down the arm to form a rounded mass of tissue linked by a tendon to the radius, the smaller of the two forearm bones. When the biceps contracts, the tendon is pulled toward the heads, thus bending the arm at the elbow. For this reason the biceps is called a flexor. It works in coordination with the tricepstriceps,
any muscle having three heads, or points of attachment, but especially the triceps brachii at the back of the upper arm. One head originates on the shoulder blade and two on the upper-arm bone, or humerus.
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 brachii, an extensor. The biceps also controls rotation of the forearm to a palm-up position, as in turning a doorknob. The size and solidity of the contracted biceps are a traditional measure of physical strength.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Biceps

 

a muscle that begins with two heads. The arm biceps in man originates at the shoulder blade and is attached to the tuberosity of the radius; it flexes the arm at the elbow joint and raises it at the shoulder joint. The biceps of the thigh originates at the ischial tuberosity and the thigh bone, and it is attached to the tibia in the region of the head of the fibula; it extends the thigh and flexes the shin.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

biceps

[′bī‚seps]
(anatomy)
A bicipital muscle.
The large muscle of the front of the upper arm that flexes the forearm; biceps brachii.
The thigh muscle that flexes the knee joint and extends the hip joint; biceps femoris.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

biceps

Anatomy any muscle having two heads or origins, esp the muscle that flexes the forearm
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Since the biceps brachii muscle is an active supinator and flexor muscle of forearm, it is not suitable for use as a flap on a functional upper limb.
The presence of third head of biceps brachii muscle might increase its kinematics and also will increase the power of supination and flexion.
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].
A case of isolated tuberculosis of biceps brachii muscle without osseous involvement is presented in a young immunocompetent female, with the review of literature.
Biceps brachii muscle illness is a common physical disability that requires rehabilitation exercises in order to launch the movement and strengthen the weak biceps brachii muscle.
Electrical stimulations (0.1 ms, constant current, Model S88K, Astro-Med, Inc., Grass Instrument Division, Warwick, USA) were delivered to the motor point of the biceps brachii muscle by the surface gel pad cathode located at previously determined motor point between the anterior edge of the deltoid muscle and the elbow crease and a surface carbon rubber anode placed over the distal tendon of the biceps brachii muscle.
Concurrent variations of the median nerve, the musculocutaneousnerve and the biceps brachii muscle. Neuroanatomy.2006; 5:30-2.
The aim of this investigation was to determine the effect of percutaneous neuromuscular stimulatory (PNS) pulse duration on whole muscle contractile properties of the human biceps brachii muscle as measured by a laser-based mechanomyographic (MMG) technique.
They reported that the reliability of each parameter ranged from moderate to high (ICC: 0.43 for tone, 0.62 for decrement, and 0.73 for stiffness) for the biceps brachii muscle in the pathological group.