from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A muscle that extends or straightens a limb or body part.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A muscle whose contraction extends or straightens a limb or body part.
from the GNU version of the Collaborative International Dictionary of English
- n. A muscle which serves to extend or straighten any part of the body, as an arm or a finger; -- opposed to
from The Century Dictionary and Cyclopedia
- n. In anatomy, a muscle which serves to extend or straighten any part of the body, as an arm or a finger: opposed to flexor. See cut under muscle.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a skeletal muscle whose contraction extends or stretches a body part
Accordingly the so-called extensor muscles of the body need frequent action.
A projecting structure termed the extensor process (or extensor attachment) is present between the carpal trochlea and the alular digit; it belongs to metacarpal I (also called the alular metacarpal), but this is hard to appreciate in modern birds because metacarpal I is fused imperceptibly into the carpometacarpus as mentioned above [in the adjacent diagram, from
What you can't see in this shot is that my feet are actually cut, and (for additional grossness) I can pump up my extensor digitorum brevis muscle so that it's ripped and the veins over it pop.
Some doctors say Nintendonitis is a real condition, caused by inflammation of the thumb's extensor tendon from pressing buttons.
Mommy thumb mainly affects two tendons — the abductor pollicis longus, or long thumb abductor, and the extensor pollicis brevis, or short thumb extensor.
Right-hander Chris Sampson had surgery to repair a lateral extensor tendon in his throwing elbow.
Its attachment to the ungular cartilages and extensor process could prove to be a vital piece of the puzzle in the search to define proper foot function.
It tends to be on extensor surfaces, such as the elbows, knees, and scalp.
The four pairs of walking legs of chelicerates lack extensor muscles, but possess flexor muscles.
By having a short flexor and a short extensor muscle of the digits.