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.
The enzyme renin is responsible for the activation of
Which of these hormones increases production of red blood cells?
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
A hormone that can lower blood levels of calcium ion is
Too little secretion of cortisol and aldosterone causes
Mental and physical sluggishness and low body temperature may be signs of
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
The interstitial cells of the testes produce
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.