Question 1

The hypothalamus communicates with the _______________ via the hypothalmic-hypopyseal portal system

Accepted Answer

anterior pituitary gland

Answer

pineal gland

Answer

parathyroid gland

Answer

posterior pituitary gland

Question 2

A hormone is best described as a

Accepted Answer

chemical released into the bloodstream that typically acts on distant targets.

Answer

All of the above describe hormones.

Answer

chemical released into the extracellular fluid that affects neighboring cells.

Answer

chemical released by a neuron directly onto a target cell.

Question 3

Which of the following sets of hormones are antagonists?

Accepted Answer

Insulin and glucagon.

Answer

Calcitonin and cortisol.

Answer

Epinephrine and norepinephrine.

Answer

Growth hormone and thyroxine.

Question 4

Which of the following is true regarding endocrine organ histology?

Accepted Answer

The adrenal cortex has three zones of cells that secrete steroid hormones.

Answer

The pancreas has an exocrine portion consisting of pancreatic islets and an endocrine portion 
consisting of acinar cells.

Answer

The thyroid gland consists of rings of stratified cuboidal follicle cells surrounding colloid.

Answer

The adrenal medulla is modified nervous tissue of the parasympathetic nervous system.

Question 5

In a negative feedback loop, you would expect secretion from an endocrine gland to ______________ 
after homeostasis has been restored

Accepted Answer

decrease

Answer

increase

Answer

remain the same

Question 6

Which is NOT something a hormone is composed of?

Accepted Answer

carbohydrate

Answer

protein

Answer

steroid

Answer

amine

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