Chapter 17

receptor

A cell does not respond to the presence of a hormone if it lacks specific__________ molecules either on the plasma membrane or intracellularly.

Antagonistic, because secretion of aldosterone increases blood volume and increases blood pressure and the other decreases blood volume and pressure.

Aldosterone and atrial natriuretic peptide are __________ hormones.

True

All endocrine glands secrete their hormones into the bloodstream.

the hypothalamus secretes CRH that influences the anterior pituitary to secrete ACTH, which then stimulates the adrenal cortex to secrete glucocorticoids

An example of hormonal stimuli is __________.

The sympathetic neurons

Cells of the adrenal medulla are most closely allied with..

The thyroid gland stores its hormones extracellularly.

How is the thyroid gland different from all other endocrine glands?

Pineal gland

Identify the letter that indicates a gland that regulates circadian rhythms.

More of that hormone is secreted, which prompts further secretion of that hormone

In a positive feedback loop, if concentrations of a specific hormone increase, what is the response of the effector organ?

Epinephrine and norepinephrine

The adrenal medulla secretes..

nervous tissue that contains unmyelinated axons and neuroglial cells

The neurohypophysis is comprised of __________.

Hypothalamus

The secretion of hormones by the anterior lobe of the pituitary is controlled by the...

T lymphocytes mature from precursor cells.

The thymus is the organ where __________.

Immediately inferior to the larynx

The thyroid gland is located...

Secreted in response to a decline in blood volume or blood pressure, it compensates for a decline in blood pressure or blood volume, it is a steroid hormone, & it is secreted by the zona glomerulosa of the adrenal cortex.

Which of the following is/are true of aldosterone?

The hormones they secrete travel more quickly than nerve impulses.

Which of the following statements concerning the endocrine glands is incorrect?

Renin.

Which of the listed hormones is not secreted by the placenta?

Medulla

Which portion of the adrenal gland secretes hormones in response to "fight-or-flight" situations?

Addison's

__________ disease involves deficiencies of glucocorticoids and mineralocorticoids; blood levels of glucose and sodium fall; and severe dehydration and low blood pressure are common; other symptoms are fatigue and loss of appetite.