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Have-a-Java Quiz 9 - Endocrine System:
 
1. Endocrine glands typically:
    A) are ductless
    B) release enzymes
    C) release neurotransmitters
    D) release their contents out of the body

 
2. Islets of Langerhans are found in the:
    A) thyroid
    B) thymus
    C) pancreas
    D) pituitary

 
3. Cortisol is released from the:
    A) parathyroid
    B) adrenal cortex
    C) hypothalamus
    D) posterior pituitary

 
4. Calcium is released from bone into the bloodstream due to the action of:
    A) ADH
    B) GnRH
    C) LH
    D) PTH

 
5. Aldosterone is produced by the ____________ gland and it causes reabsorption of ________.
    A) thyroid; sodium
    B) pituitary; water
    C) adrenal; sodium
    D) thymus; white blood cells

 
6. Blood calcium is lowered by the hormone:
    A) calcitonin
    B) glucagon
    C) adrenalin
    D) thyroxine

 
7. An oversecretion of GH (or STH) would lead to:
    A) goiter
    B) diabetes
    C) infertility
    D) gigantism

 
8. Which pair of hormones act antagonistically?
    A) glucagon and cortisol
    B) insulin and adrenalin
    C) cortisol and insulin
    D) glucagon and adrenalin

 
9. This hormone would be at an increased level in a mother who is breast feeding.
    A) thyroxine
    B) prolactin
    C) aldosterone
    D) insulin

 
10. GnRH is produced by the ____________ and acts on the ___________.
    A) kidney; adrenal
    B) pituitary; thyroid
    C) adrenal; ovary
    D) hypothalamus; pituitary

 
11. Which hormone would increase in the blood during dehydration?
    A) atrial natriuretic hormone
    B) antidiuretic hormone
    C) parathyroid hormone
    D) melatonin

 
12. Compared to neurotransmitters, hormones act:
    A) faster
    B) on fewer cells
    C) for a shorter period of time
    D) over longer distances

 
13. Steroid hormones are made from precursor molecules of:
    A) cholesterol
    B) a single modified amino acid
    C) amino acid chains
    D) fatty acids

 
14. As the sun comes up in the morning, your blood level of __________ goes down and you wake up.
    A) melatonin
    B) cortisol
    C) glucagon
    D) adrenalin

 
15. Which hormone is most commonly associated with the "fight or flight" response to stress?
    A) insulin
    B) adrenalin
    C) calcitonin
    D) prolactin

 
16. These two hormones are produced by the hypothalamus but stored in the posterior pituitary.
    A) insulin and glucagon
    B) ADH and oxytocin
    C) growth hormone and prolactin
    D) thymosin and adrenalin

 
17. This hormone from the hypothalamus stimulates release of thyrotropin from the anterior pituitary.
    A) CRH
    B) ACTH
    C) STHRH
    D) TRH

 
18. Thyrotropin (or TSH) stimulates the thyroid gland to release:
    A) thyroxin
    B) calcitonin
    C) parathormone
    D) thymosin

 
19. Thyroxin (or thyroid hormone) travels through the bloodstream acting on many target calls to increase:
    A) blood sugar
    B) blood calcium
    C) metabolism
    D) anti-inflammatory reactions

 
20. Hyposecretion of thyroxin could be caused by a decrease in the release of:
    A) TRH or TSH (thyrotropin)
    B) TSH or ACTH
    C) STHRH or STH
    D) FSH or LH

 
21. CRH (corticotropin releasing hormone) stimulates the release of _____ from the anterior pituitary.
    A) ACTH (adrenocorticotropic hormone)
    B) TSH (thyrotropin)
    C) STH (somatotropin)
    D) PRL (prolactin)

 
22. The major target for ACTH is the:
    A) pancreas
    B) thyroid
    C) liver
    D) adrenal

 
23. The overall effect of stimulation by ACTH on the target you chose in the question above is:
    A) increased blood sugar
    B) anti-inflammatory response
    C) increased water conservation by kidney
    D) both A and B

 
24. Too much ACTH release could cause hyperglycemia (high blood sugar). Since sugar is a solute, this could also cause:
    A) increased blood pressure
    B) increased blood calcium
    C) decreased body temperature
    D) decreased metabolism

 
25. In order to reduce high blood pressure, the hormone _____ could be released to stimulate excretion of sodium thereby reducing blood solutes and hence blood pressure.
    A) aldosterone
    B) atrial natriuretic hormone
    C) antidiuretic hormone
    D) erythropoitin

 
26. Another hormone that can affect blood pressure by directly influencing sodium concentration in the blood is:
    A) aldosterone
    B) antidiuretic hormone
    C) glucagon
    D) parathormone

 
27. Hormones that have similar actions (say, both reduce blood pressure) are said to be:
    A) antagonistic
    B) agonistic
    C) collaborative
    D) summative

 
28. Choose the pair of hormones that have agonistic effects on blood glucose levels.
    A) aldosterone and ADH
    B) thymosin and thyroxin
    C) calcitonin and PTH
    D) adrenalin and glucagon

 
29. A patient suffering from dwarfism is most likely deficient in one or more of the hormones from this pair:
    A) ADH or PTH
    B) STHRH or STH
    C) TRH or TSH
    D) GnRH or LH

 
30. A patient that is losing weight and suffering from an increased body temperature could be hypersecreting:
    A) CRH
    B) GnRH
    C) PRLRH
    D) TRH

BioFax Quiz 16: Hormones
BioFax Quiz 16: Hormones


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