| voluntary muscle | <anatomy> One whose action is under the control of the will; all the striated muscle's, except the heart, are voluntary muscle's. (05 Mar 2000) |
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| maximal voluntary ventilation | Measure of the maximum amount of air that can be breathed in and blown out over a sustained interval such as 15 or 20 seconds. Common abbreviations are mvv and mbc. (12 Dec 1998) |
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| maximum voluntary ventilation | The volume of air breathed when an individual breathes as deeply and as quickly as possible for a given time (e.g., 15 sec.). Synonym: maximum breathing capacity. (05 Mar 2000) |
| voluntary | Accomplished in accordance with the will. Origin: L. Voluntas = will (18 Nov 1997) |
| voluntary dehydration | That physiologic lag or deficit that results when sensations of thirst are not strong enough to bring about complete replacement of water loss, as in rapid sweating. (05 Mar 2000) |
| voluntary guarding | Abdominal muscle spasm that can be willfully suppressed. (05 Mar 2000) |
| voluntary health agencies | Non-profit organizations concerned with various aspects of health, e.g., education, promotion, treatment, services, etc. (12 Dec 1998) |
| voluntary hospital | A hospital supported in part by voluntary contributions and under the control of a local, usually self-appointed, board of managers; a non-profit hospital. Synonym: philanthropic hospital. (05 Mar 2000) |
| voluntary mutism | Mutism due to psychogenic causes. Synonym: voluntary mutism. (05 Mar 2000) |
| voluntary nystagmus | Pendular nystagmus in which the individual causes an extremely fine and rapid horizontal oscillation of the eyes. The nystagamus consists of back-to-back saccades and is seldom done for more than a few seconds at a time. (05 Mar 2000) |
| voluntary workers | Persons who donate their services. (12 Dec 1998) |
| hospitals, voluntary | Private, not-for-profit hospitals that are autonomous, self-established, and self-supported. (12 Dec 1998) |
| abdominal external oblique muscle | <anatomy, muscle> Origin, fifth to twelfth ribs; insertion, anterior half of lateral lip of iliac crest, inguinal ligament, and anterior layer of the rectus sheath; action, diminishes capacity of abdomen, draws thorax downward; nerve supply, thoracoabdominal nerves. Synonym: musculus obliquus externus abdominis, abdominal external oblique muscle. (05 Mar 2000) |
| abdominal internal oblique muscle | <anatomy, muscle> Origin, iliac fascia deep to lateral part of inguinal ligament, anterior half of crest of ilium, and lumbar fascia; insertion, tenth to twelfth ribs and sheath of rectus; some of the fibres from inguinal ligament terminate in the conjoint tendon; action, diminishes capacity of abdomen, flexes lumbar vertebral column (bends thorax forward); nerve supply, lower thoracic. Synonym: musculus obliquus internus abdominis, abdominal internal oblique muscle. (05 Mar 2000) |
| abdominal muscle deficiency syndrome | <syndrome> Congenital absence (partial or complete) of abdominal muscles, in which the outline of the intestines is visible through the protruding abdominal wall; in males, genitourinary anomalies (urinary tract dilation and cryptorchidism) are also found; genetics unclear. (05 Mar 2000) |
| abductor digiti minimi muscle of foot | Origin, lateral and medial processes of calcanean tuberosity; insertion, lateral side of proximal phalanx of fifth toe; action, abducts and flexes little toe; nerve supply, lateral plantar nerve. Synonym: musculus abductor digiti minimi pedis, abductor muscle of little toe, musculus abductor digiti quinti. (05 Mar 2000) |