insufficiency /in·suf·fi·cien·cy/ (-sah-fish´in-se) inability to perform properly an allotted function.
adrenocortical insufficiency (
drē´-nōkôr´tikl),
adrenal insufficiency
1. hypoadrenalism; abnormally diminished activity of the adrenal gland.
adrenocortical insufficiency abnormally diminished secretion of corticosteroids by the adrenal cortex, as in Addison's disease.
aortic insufficiency defective functioning of the aortic valve, with incomplete closure resulting in aortic regurgitation.
cardiac insufficiency heart failure.
coronary insufficiency decrease in flow of blood through the coronary blood vessels.
insufficiency of the externi deficient power in the externi muscles of the eye, resulting in esophoria.
ileocecal insufficiency inability of the ileocecal valve to prevent backflow of contents from the cecum into the ileum.
insufficiency of the interni deficient power in the interni muscles of the eye, resulting in exophoria.
mitral insufficiency defective functioning of the mitral valve, with incomplete closure causing mitral regurgitation.
pulmonary insufficiency defective functioning of the pulmonary valve, with incomplete closure causing pulmonic regurgitation.
thyroid insufficiency hypothyroidism.
tricuspid insufficiency defective functioning of the tricuspid valve, with incomplete closure causing tricuspid regurgitation; it is usually secondary to systolic overload.
valvular insufficiency
1. dysfunction of a cardiac valve, with incomplete closure resulting in valvular regurgitation; named for the valve involved.
2. venous i.
velopharyngeal insufficiency failure of velopharyngeal closure due to cleft palate, muscular dysfunction, etc., resulting in defective speech.
venous insufficiency inadequacy of the venous valves with impairment of venous drainage, resulting in edema.
vertebrobasilar insufficiency transient ischemia of the brain stem and cerebellum due to stenosis of the vertebral or basilar artery.
| adrenocortical insufficiency n. Loss or diminution of adrenocortical function, as in Addison's disease. Also called hypocorticoidism. |
adrenocortical insufficiency (
drē´-nōkôr´tikl),n an acute or chronic adrenocortical hypofunction, as in Waterhouse-Friderichsen syndrome or Addison's disease. See hypoadrenocorticalism.
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