Start Quiz: Anatomy & Physiology: The Endocrine System MCQ

Question: Chemical signaling that affects neighboring cells is called ________.

Choices:

autocrine

paracrine

endocrine

neuron

Question: A newly developed pesticide has been observed to bind to an intracellular hormone receptor. If ingested, residue from this pesticide could disrupt levels of ________.

Choices:

melatonin

thyroid hormone

growth hormone

insulin

Question: The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of ________.

Choices:

blood vessels

nerve axons

cartilage

bone

Question: How many hormones are produced by the posterior pituitary?

Choices:

0

1

2

6

Question: Endocrine glands ________.

Choices:

secrete hormones that travel through a duct to the target organs

release neurotransmitters into the synaptic cleft

secrete chemical messengers that travel in the bloodstream

include sebaceous glands and sweat glands

Question: Which of the following is an anterior pituitary hormone?

Choices:

ADH

oxytocin

TSH

cortisol

Question: A small molecule binds to a G protein, preventing its activation. What direct effect will this have on signaling that involves cAMP?

Choices:

The hormone will not be able to bind to the hormone receptor.

Adenylyl cyclase will not be activated.

Excessive quantities of cAMP will be produced.

The phosphorylation cascade will be initiated.

Question: A student is in a car accident, and although not hurt, immediately experiences pupil dilation, increased heart rate, and rapid breathing. What type of endocrine system stimulus did the student receive?

Choices:

humoral

hormonal

neural

positive feedback

Question: Which of the following hormones contributes to the regulation of the body's fluid and electrolyte balance?

Choices:

adrenocorticotropic hormone

antidiuretic hormone

luteinizing hormone

all of the above

Question: Which of the following statements about the thyroid gland is true?

Choices:

It is located anterior to the trachea and inferior to the larynx.

The parathyroid glands are embedded within it.

It manufactures three hormones.

all of the above

Question: The secretion of thyroid hormones is controlled by ________.

Choices:

TSH from the hypothalamus

TSH from the anterior pituitary

thyroxine from the anterior pituitary

thyroglobulin from the thyroid's parafollicular cells