Exam 19: The Endocrine System

Which hormone is derived from molecules of the neurotransmitter serotonin and functions to slow the maturation of sperm, oocytes, and reproductive organs?

The types of cells found in the parathyroid gland are the parathyroid cells (productive glandular cells)and the oxyphil cells.

Chromaffin cells, which are large, rounded cells of the medulla of the adrenal gland, resemble the neurons in sympathetic ganglia and are innervated by preganglionic sympathetic fibers.

Which endocrine organ is responsible for the production of ADH, oxytocin, and regulatory hormones?

The two thyroid hormones, thyroxine and triiodothyronine, have complementary effects in which they decrease the rate of cellular metabolism and oxygen consumption in almost every cell in the body.

In the male, the ________ of the testes produce androgens.

________ is a steroid hormone secreted by the kidney in response to the presence of parathyroid hormone.

What are the main functions of calcitonin, the hormone that is produced by C thyrocytes?

Figure 19.3 Using the figure above, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label Q.

C-thyrocytes help regulate the concentration of ________ ions in body fluids.

Adrenocorticotropic hormone specifically targets cells producing hormones called glucocorticoids, which stimulates glucocorticoid secretion.

Which of the following is/are the effects of hormones produced by the T thyrocytes of the thyroid gland?

The zona reticularis of the adrenal cortex normally secretes small amounts of ________.

After puberty, the thymus ________.

Figure 19.3 Using the figure above, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label D.

Figure 19.3 Using the figure above, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label K.

The ________ contains neurons, glial cells, and special secretory cells that synthesize the hormone melatonin.

In the anterior lobe of the pituitary gland, the pars tuberalis, which wraps around the adjacent portion of the infundibulum, represents the major portion of the pituitary gland.

In women, which of the following is the function(s)of oxytocin that is released by the posterior lobe of the pituitary gland?

Figure 19.2 Using the figure above, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label L.