Chapter 18 A and P 2

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Compared to the endocrine system, the nervous system is __________.
briefer in action
more rapidly acting
more localized in action
all of the listed characteristics

All of the following are true of steroid hormones except that they
are produced by the suprarenal medulla

________ are chemical messengers that are released by cells and transported in the bloodstream to alter the activities of specific cells in other tissues.
Hormones

Which of the following substances activates protein kinases and thus acts as a second messenger?
cyclic AMP

Which of these is released by the neurohypophysis?
ADH

When one hormone is needed for a second hormone to produce an effect, it is called
permissive.

Type 2 diabetes
an usually be controlled by diet and exercise rather than with medication

Two hormones that have additive effects are called
synergists.

Which of the following hormones increases production of red blood cells?
erythropoietin

All of the pancreatic hormones are regulated by
nutrient concentrations in the blood.

Shelly has a hormone-secreting tumor of the suprarenal gland. The tumor is causing her to have a deep voice, grow extensive body hair, and stop menstruating. This tumor probably involves cells of the
zona reticularis.

When blood glucose levels are high
The pancreas releases insulin

A liver cell responds to insulin by
Taking in glucose and converting it to glycogen.

What cells in the body respond to glucagon by breaking down glycogen and releasing glucose?
Liver cells.

Body cells that respond to insulin include
Liver cells, as well as most other cells of the body.

When blood glucose levels are low
The pancreas releases glucagon, which eventually causes blood glucose levels to increase.

The body’s tendency to maintain relatively constant internal conditions is called
homeostasis.

Melatonin is secreted by __________.
pinealocytes

Hormones from the adrenal cortex that regulate electrolyte balance are
mineralocorticoids.

Which gland is called the “emergency gland” and helps the body adjust to stress?
adrenal (suprarenal)

The adrenal medulla produces the hormones
epinephrine and norepinephrine.

Cushing’s disease results from an excess of
glucocorticoids.

The zona glomerulosa of the suprarenal cortex produces
mineralocorticoids.

The hormone that does the opposite of calcitonin is
parathyroid hormone.

The two lobes of the thyroid gland are connected by the
isthmus.

Inadequate iodine in the diet may lead to
hypothyroidism.
myxedema.
high blood levels of TSH.
cretinism.
All of the answers are correct.

The C cells of the thyroid gland produce
calcitonin.

A hormone that can lower blood levels of calcium ion is
calcitonin.

The posterior lobe of the pituitary is also known as the
neurohypophysis.

Excess secretion of growth hormone during early development will cause
gigantism.

The main action of antidiuretic hormone is
increased water conservation by kidneys

We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy Endocrine cells Release their secretions directly into bodily fluids Steroid hormones diffuse through the plasma membrane and bind to …

We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy TSH Thyroid Stimulating Hormone Endocrine Gland: anterior pituitary Target Cell: thyroid Function of Target Cell: Releases it’s thyroid hormone …

We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy Which of the following hormones has intracellular receptors? -epinephrine -cortisol -insulin Cortisol What is the mechanism of action of …

We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy Epinephrine An “adrenal rush” is caused by the release of ____, a hotmone of the adrenal medulla. Ovaries Eggs, …

We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy Thyroid Gland Located in the throat, bilobed gland connected by an isthmus Adrenal Gland Found close to the kidney …

We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy The hormone GH is released from which gland? And what is this gland stimulated by? Anterior Pituitary; stimulated by …

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