Question

question 9 (2.5 points)
the c cells of the thyroid gland produce ____.
○ tsh
○ thyroxine
○ thymosin
○ calcitonin
question 10 (2.5 points)
the term ____ is generally used to describe a male sex hormone.
○ testosterone
○ progesterone
○ estrogen
○ androgen
question 11 (2.5 points)
the hormone that is important for maintenance of the immune system is ____.
○ cortisol
○ aldosterone
○ thymosin
○ thyroxine

Explanation:

Question 9

The C cells (parafollicular cells) of the thyroid gland are known to secrete calcitonin, which helps regulate calcium levels. TSH is from the pituitary, thyroxine from thyroid follicular cells, and thymosin from the thymus.

Androgen is the general term for male sex hormones (e.g., testosterone is a type of androgen). Testosterone is a specific androgen, progesterone is female, estrogen is female.

Thymosin is associated with the thymus and immune system development/maintenance. Cortisol is stress-related, aldosterone is for electrolyte balance, thyroxine is thyroid hormone.

Answer:

D. calcitonin (assuming the options are labeled A: TSH, B: thyroxine, C: thymosin, D: calcitonin)

Question 10