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Growth hormone does all of the following, except that it

causes fat accumulation within adipocytes

The pituitary hormone that stimulates milk production by the mammary glands is


The pituitary hormone that promotes ovarian secretion of progesterone and testicular secretion of testosterone is


Regulatory factors that control secretion of adenohypophyseal hormones are released by neurons at the ________ of the hypothalamus.

median eminence

The enzyme renin is responsible for the activation of


Which of these hormones increases production of red blood cells?


When blood glucose levels rise,

insulin is released.

Each of the following is true of the pineal gland, except that it

is a component of the hypothalamus.

Peptide hormones are

composed of amino acids

Hormones known as "catecholamines" are

derivatives of the amino acid tyrosine.

Melatonin is produced by the

pineal gland.

A hormone that can lower blood levels of calcium ion is


Too little secretion of cortisol and aldosterone causes

Addison disease.

Mental and physical sluggishness and low body temperature may be signs of


Endocrine cells

release their secretions directly into body fluids

The action of thyroid hormone on a target cell involves all these steps except one. Identify the incorrect step.

binding to a hormone receptor in the plasma membrane

Follicle cells in the ovary secrete ________ when stimulated by FSH.


Cells of the suprarenal cortex produce


All of the following are true of steroid hormones, except that they

are produced by the suprarenal medulla.

The pituitary hormone that promotes egg development in ovaries and sperm development in testes is


The pituitary hormone that triggers the release of thyroid hormone from the thyroid gland is


Thyroid hormone contains the element


Thyroxine and calcitonin are secreted by the

thyroid gland.

The interstitial cells of the testes produce


When blood glucose levels rise,

insulin is released.

The pancreatic hormone that causes blood sugar levels to fall is


The link between a first messenger and a second messenger in a cell that responds to peptide hormones is usually

a G protein

The condition known as goiter can result from too

little iodine in the diet.

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