quadriceps

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quadriceps

 [kwod´rĭ-seps]
having four heads; see table at muscle.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

four-headed muscle

[TA]
having four heads; denoting a muscle of the thigh, quadriceps femoris muscle, and-uncommonly-one of the calf, quadriceps surae muscle, or the combined gastrocnemius (with two heads), soleus, and plantaris, more commonly called triceps surae muscle, the plantaris being counted as a separate muscle.
Synonym(s): quadriceps
Farlex Partner Medical Dictionary © Farlex 2012

quadriceps

(kwŏd′rĭ-sĕps′)
n.
The large four-part extensor muscle at the front of the thigh.

quad′ri·cip′i·tal (-sĭp′ĭ-tl) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

quad·ri·ceps

, pl. quadricepses (kwahd'ri-seps, -ěz)
Having four heads; denoting a muscle of the thigh, quadriceps femoris muscle, and one of the calf, quadriceps surae muscle, or the combined gastrocnemius (with two heads), soleus, and plantaris, more commonly called triceps surae muscle, the plantaris being counted as a separate muscle.
[L. fr. quadri- + caput, head]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Quadriceps, hip flexors, hamstrings

Major muscles in the thigh area which affect knee mechanics.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.