A&P II Ch. 17 Endocrine System

The end result of the R A A S is to

Increase blood pressure

Chemical signaling that affects neighboring cells is called

Paracine

Which of the following responses s not party of the fight-or-flight response?

Reduced mental activity

Endocrine glands

Secrete chemical messages that travel in the bloodstream

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

Thyroid hormone

When blood calcium are low, PTH stimulates

the activity of osteoclasts

How many hormones are produced by the posterior pituitary?

0

Cushing's disease is a disorder caused by

Abnormally high levels of cortisol

What secretory cell type is found in the adrenal medulla?

Chromaffin cells

Which of the following is an anterior pituitary hormone?

TSH

Iodine ions cross from the bloodstream into follicle cells via _____

Active transport

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

Adenylyl cyclase will not be activated

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

Antidiuretic hormone

The walls of the atria produce which hormone?

Atrial natriuretic peptide

Athletes may take synthetic EPO to boost their

Blood oxygen levels

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?

Neural

In the elderly, decreased thyroid function causes ________.

decreased basal metabolic rate

Hormones produced by the thymus play a role in the

development of T cells

The production of melatonin is inhibited by

exposure to bright light

Which of the following statements about insulin is true?

Insulin facilitates the movement of intracellular glucose transporters to the cell membrane

Which of the following can result from hyperparathyroidism?

Fractures

The adrenal glands are attached superiorly to which organ?

Kidneys

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

Nerve axons

The development of a goiter indicates that

there is an excessive accumulation of colloid in the thyroid follicles

the gonads produce what class of hormones?

Steroid hormones

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

It is located anterior to the trachea and inferior to the larynx, the parathyroid glands are embedded within it, and it manufactures three hormones.

The anterior pituitary gland develops from which embryonic germ layer?

Oral ectoderm

The function of the placental hormone human placental lactose (hPL) is to

Prepare the breasts for lactaion

The secretion of thyroid hormones is controlled by

TSH from the anterior pituitary

If an autoimmune disorder targets the alpha cells, production of which hormone would be directly affected?

glucagon

The production of FSH by the anterior pituitary is reduced by which hormone?

inhibin

What cells secrete melatonin?

pinealocytes