CBSE Class 10 Answered
what are the various abnormal conditions caused by over secretion and under secretion of hormone?
Asked by sujata verma | 14 Jun, 2013, 07:33: PM
Expert Answer
A hormone is a chemical released by a cell, a gland, or an organ in one part of the body that affects cells in other parts of the organism.
Hyperthyroidism:-
- Graves's disease, considered an autoimmune disease, shows elevated metabolic rate, excessive perspiration, rapid, irregular heartbeat, nervousness and weight loss
- exophthalmos: protrusion of the eyeballs caused by edematous tissue behind the eyes
Hypothyroidism:-
- cretinism (infantile hypothyroidism) - shows stunted growth, thickened facial features, abnormal bone development and mental retardation,
- myxedema - low metabolic rate, lethargy, weight gain, increase in body fluids
- goiter - abnormal growth of the thyroid gland
-
Hyperinsulinism:-
- hypoglycemia - resulting in lack of glucose delivery to the brain causing disorientation, unconsciousness and even death (usually the result of an overdose of insulin)
Hypoinsulinism:-
- Type I Diabetes (insulin - dependent diabetes mellitus)- elevated glucose levels in the blood and urine. Over time diabetics experience vascular and neural problems. Secondarily, poor circulation may lead to gangrene, blindness, kidney damage and impotence.
- Type II Diabetes - while occurring later in life, the conditions and problems that accompany Type I diabetes occur here as well. There are many hormones which have different functions like this.
Answered by | 15 Jun, 2013, 11:27: AM
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