BIOS 252 - Week 7 - Endocrine System Part 2

BIOS 252 - Week 7 - Endocrine System Part 2
Study online at https://quizlet.com/_fhi6v0

1. What does thyroid-stimulating hormone (TSH or thy- Thyroid gland
rotropin) target?

Posterior pituitary (neurohypophysis)
Hypothalamus
Thyroid gland
Anterior pituitary (adenohypophysis)

2. Which is a primary endocrine organ? Thyroid

Liver
Gonads
Thyroid
Pancreas

3. Which pancreatic cells release insulin and glucagon? Pancreatic islets

Pancreatic islets
Acinar cells
Chromaffin cells
Chief cells

4. What hormone is made by the parafollicular cells of the Calcitonin
thyroid gland?
Calcitonin is the hormone
Thyroxine (T4) produced by the parafol-
Triiodothyronine (T3) licular C cells of the thyroid
Parathyroid hormone (PTH) gland.
Calcitonin T3 and T4 are produced by
follicular cells. PTH is pro-
duced by the parathyroid
gland.




, BIOS 252 - Week 7 - Endocrine System Part 2
Study online at https://quizlet.com/_fhi6v0

5. Which is not a main effect of the T3 (triiodothyronine) Regulation of blood calci-
hormone? um levels

Synergism with the sympathetic nervous system
Regulation of blood calcium levels
Promotion of growth and development
Regulation of the metabolic rate and thermoregula-
tion

6. What stimulates the release of parathyroid hormone Hypocalcemia
(PTH)?
Parathyroid hormone
Hypocalcemia (PTH) is responsible for
Low basal metabolic rate increasing blood calcium
Hypercalcemia levels when the levels drop
Cold temperatures too low. Therefore, a low
level of blood calcium
(hypocalcemia) is the trig-
ger.

7. Aldosterone regulates extracellular sodium and
potassium ion levels
blood calcium ion levels
blood glucose levels Aldosterone regulates the
blood iodide ion levels blood sodium and potas-
extracellular sodium and potassium ion levels sium levels. It en-
hances sodium absorption
and potassium excretion
through the kidneys.

8. What neurohormones are released from the adrenal
medulla?