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TOPIC OF DISC (LAB A ch of the following sets of hormones are antagonists? nsuli

ID: 3523462 • Letter: T

Question

TOPIC OF DISC (LAB A ch of the following sets of hormones are antagonists? nsulin and glucagon. alcitonin and cortisol. pinephrine and norepinephrine rowth hormone and thyroxine. hing: Match the following endocrine organs with the hormonels) each secretes. A. Antidiuretic hormone and oxytocin B. Insulin and glucagon C. Aldosterone and cortisol D. Epinephrine and norepinephrine E. Thyroxine, triiodothyronine, and calcitonin F. Thyroid-stimulating hormone, growth hormone G. Melatonin H. Thymosin and thymopoietin Pineal gland Thyroid gland Pancreas Thymus Hypothalamus Adrenal cortex Anterior pituitary Adrenal medulla f the following is true regarding endocrine organ histology? hyroid gland consists of rings of stratified cuboidal follicle cells surrounding colloid. ancreas has an exocrine portion consisting of pancreatic islets and an endocrine portion consisting of drenal cortex has three zones of cells that secrete steroid hormones. drenal medulla is modified nervous tissue of the parasympathetic nervous system. ative feedback loop, you would expect secretion from an endocrine gland to tasis has been restored

Explanation / Answer

Ans:

1) Insunlin and glucagon are antagonistic hormones because they antagonize the liver into transforming glucose into glycogen when the blood sugar levels are high that is insulin and it converts glycogen into the glucose whwn the blood sugar is low that is glucagon.

2) Following are the matches of endocrine organs with their hormones.

Pineal gland- Melatonin

Thyroid gland- Thyroxine, Triidothyronine and calcitonin

Pancreas-Insulin and glucagon

Thymus -Thymosin and Thymopoetin

Hypothalamus-Thyroid stimulatin hormone and growth hormone.

Adrenal cortex- Aldosterone and cortisol

Adrenal Medulla-Epinephirine and norephinephrine

Adrenal pituitary - oxytocin and antidiuretic hormone

5)

Labeling for right upper one :

Parafollicular cells (upper two outside cells of circular cells which are present besids the follicular cells (In both diagrams circular coloumns).

Middle portion is colloid of both right diagrams.

In left digram left arrow (neck like ) is isthmus and right big arrow of left diagram is thyroid follicle.

Your answers of question second, third and fourth are correct.