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TAMU BIOL 320 Test 1 Questions And Answers with Expert Verified Solutions
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TAMU BIOL 320 Test 1 Questions And Answers with Expert Verified Solutions
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TAMU BIOL 320 Test 1 Questions AndAnswers with Expert Verified Solutions
The paraventricular nucleus releases what hormone? - ✔✔Oxytocin
The supraoptic nucleus releases what hormones? - ✔✔ADH and AVP (vasopressin)
What effects do AVP and ADH have on the body? - ✔✔Cause kidneys to release less H2O = increase BP
Which form of diabetes presents glucose in the urine? - ✔✔Diabetes mellitus
What is the effect of somatostatin on the body? - ✔✔Shuts down the release of GH
GH causes what changes in the body? - ✔✔Shifts energy sources: "glucose sparing"
Too much GH AFTER the growth plates seal leads to a disorder called _________. - ✔✔Acromegally
Too much GH BEFORE the growth plates seal leads to a disorder called _________. - ✔✔Gigantism
Not enough GH during development leads to a group of disorders called _________. - ✔✔Dwarfism
GH release pattern is described as being __________. - ✔✔Dinural: Its release picks up around 8pm and
peaks around 11pm
AcTH is also known as _______. - ✔✔Corticotropin
,What is the name of the structure that connects the lobes of the thyroid gland? - ✔✔Isthmus
What are the types of cells on the thyroid gland? - ✔✔Follicular cells and parafollicular cells
What hormones are released by follicular cells of the thyroid? - ✔✔T3 and T4
What are the full names for T3 and T4 respectively? - ✔✔Thyroxine and Triiodothyronine
What hormones are released by parafollicular cells of the thyroid gland? - ✔✔Calcitonin
How does calcitonin work in the body? - ✔✔Increases osteoBlast activity and supresses
osteoClast activity
Myxedemia is more commonly known as ________. - ✔✔Hypothyroidism
What are the symptoms of hypothyroidism? - ✔✔- Goiter
- Weight gain
- depressed HR
- Puffy eyes
Graves disease is also called _________. - ✔✔Hyperthyroidism
What are the symptoms of hyperthyroidism? - ✔✔- Too hot
- Agitated
- Eyes buggin out
Hyperthyroidism is often cause by a ___________ disorder. - ✔✔Autoimmune
, What hormones are produced by the parathyroid glands? - ✔✔Parathyroid hormone
What does PTH do? - ✔✔Acts agnostically to calcitonin (increases blood [Ca])
What is the main blood [Ca] regulation technique? - ✔✔- Too much [Ca] = more calcitonin and less
PTH release
- Not enough [Ca] = less calcitonin and more PTH release
What glands are more active when blood [Ca] is A) too low and B) too high? - ✔✔A)
Parathyroid B) Thyroid
What are the three layers of the adrenal cortex from least to most deep? - ✔✔- Zona glomerulosa
- Zona fasciculata
- Zona reticularis
The zona glomerulosa produces which hormones? - ✔✔Mineralcorticoids (aldosterone)
The adrenal medulla produces what hormones? - ✔✔Epinephrine
What is the function of aldosterone in the body? - ✔✔Causes kidney tubules to reabsorb more
Na leading to an increased BP
What is the cascade that occurs when blood [Na] is down and or blood [K] is up? - ✔✔1) Kidneys
release renin
2) Renin triggers release of angiotensin 1
3) Angiotensin 1 triggers release of angiotensin 2
4) Angiotensin 2 triggers adrenal cortex to release aldosterone
5) Aldosterone causes kidney tubules to increase [Na] reuptake
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