thyroid insufficiency


insufficiency

 [in″sŭ-fish´en-se] inability to perform properly an allotted function; called also incompetence.adrenal insufficiency abnormally diminished activity of the adrenal gland; called also hypoadrenalism.adrenocortical insufficiency abnormally diminished secretion of corticosteroids by the adrenal cortex; see also addison's disease. Called also hypoadrenocorticism and hypocorticism.aortic insufficiency inadequate closure of the valve" >aortic valve, permitting regurgitation" >aortic regurgitation.coronary insufficiency decreased supply of blood to the myocardium resulting from constriction or obstruction of the coronary arteries, but not accompanied by necrosis of the myocardial cells. Called also myocardial ischemia.ileocecal insufficiency inability of the valve" >ileocecal valve to prevent backflow of contents from the cecum into the ileum.mitral insufficiency inadequate closure of the valve" >mitral valve, permitting regurgitation" >mitral regurgitation.placental insufficiency dysfunction of the placenta, with reduction in the area of exchange of nutrients; it often leads to fetal growth retardation.pulmonary insufficiency 1. pulmonary valve insufficiency.2. respiratory insufficiency.pulmonary valve insufficiency inadequate closure of the valve" >pulmonary valve, permitting regurgitation" >pulmonic regurgitation.respiratory insufficiency see respiratory insufficiency.thyroid insufficiency hypothyroidism.tricuspid insufficiency incomplete closure of the valve" >tricuspid valve, resulting in regurgitation" >tricuspid regurgitation.valvular insufficiency failure of a cardiac valve to close perfectly, causing regurgitation" >valvular regurgitation; see also aortic, mitral, pulmonary, and tricuspid insufficiency.velopharyngeal insufficiency inadequate closure" >velopharyngeal closure, due to a condition such as cleft palate or muscular dysfunction, resulting in defective speech.venous insufficiency inadequacy of the venous valves and impairment of venous return from the lower limbs (stasis" >venous stasis), often with edema and sometimes with ulcers" >stasis ulcers at the ankle.

thy·roid in·suf·fi·cien·cy

subnormal secretion of hormones by the thyroid gland.
See also: hypothyroidism.

thy·roid in·suf·fi·cien·cy

(thīroyd insŭ-fishĕn-sē) Subnormal secretion of hormones by the thyroid gland.
See also: hypothyroidism