1 | Page
Maryville 611 Patho Exam 3 Questions and
Correct Answers
Which mineral is needed for thyroid-stimulating hormone (TSH) to
stimulate the secretion of thyroid hormone (TH)? Ans: Iodide.
What are clinical manifestations of hypothyroidism? Ans:
decreased energy metabolism, resulting in constipation,
bradycardia, and lethargy
Thyroid-stimulating hormone (TSH) is released to stimulate
thyroid hormone (TH) and is inhibited when plasma levels of TH
are adequate. This is an example of: Ans: Negative feedback.
Lipid-soluble hormone receptors are located: Ans: Inside the
plasma membrane in the cytoplasm.
© 2025 All rights reserved
, 2 | Page
The releasing hormones that are made in the hypothalamus travel
to the anterior pituitary via the: Ans: Portal hypophyseal blood
vessels.
What effect does hyperphosphatemia have on other electrolytes?
Ans: Decreases serum calcium. .
Insulin transports which electrolyte in the cell? Ans: Potassium.
Which second messenger is stimulated by epinephrine binding to a
β-adrenergic receptor? Ans: Cyclic adenosine monophosphate
(cAMP). These molecules are the initial link between the first signal
(hormone) and the inside of the cell. For example, the binding of
epinephrine to a β adrenergic-receptor subtype activates (through
a stimulatory G protein) the enzyme, adenylyl cyclase. Adenylyl
cyclase catalyzes the conversion of adenosine triphosphate (ATP)
to the second messenger, 3', and
Regulation of the release of catecholamines from the adrenal
medulla is an example of which type of regulation? Ans: Neural.
© 2025 All rights reserved
, 3 | Page
Which hormone does the second messenger calcium (Ca++) bind to
activate phospholipase C through a G protein? Ans: Angiotensin
II. this bodily element is considered an important second
messenger that facilitates the binding of a hormone (e.g.,
norepinephrine, angiotensin II) to a surface receptor, activating the
enzyme phospholipase C through a G protein inside the plasma
membrane.
The control of calcium in cells is important because it: Ans: Acts
as a second messenger
Where is antidiuretic hormone (ADH) synthesized, and where does
it act? Ans: Hypothalamus; renal tubular cells.
How does a faulty negative-feedback mechanism result in a
hormonal imbalance? Ans: Excessive hormone production results
from a failure to turn off the system.
A deficiency of which chemical may result in hypothyroidism?
Ans: iodine.
© 2025 All rights reserved
, 4 | Page
What imbalance lessens the rate of secretion of parathyroid
hormone Ans: Increased serum calcium levels.
Which condition may result from pressure exerted by a pituitary
tumor? Ans: Hypothyroidism.
Which substance is a water-soluble protein hormone? Ans:
Insulin.
Which of the following is a lipid-soluble hormone? Ans: Cortisol.
When insulin binds its receptors on muscle cells, an increase in
glucose uptake by the muscle cells is the result. This is an example
of what type of effect by a hormone? Ans: Direct.
Graves disease develops from a(n): Ans: Viral infection of the
thyroid gland that causes overproduction of thyroid hormone.
Autoimmune process during which lymphocytes and fibrous tissue
replace thyroid tissue.
© 2025 All rights reserved
Maryville 611 Patho Exam 3 Questions and
Correct Answers
Which mineral is needed for thyroid-stimulating hormone (TSH) to
stimulate the secretion of thyroid hormone (TH)? Ans: Iodide.
What are clinical manifestations of hypothyroidism? Ans:
decreased energy metabolism, resulting in constipation,
bradycardia, and lethargy
Thyroid-stimulating hormone (TSH) is released to stimulate
thyroid hormone (TH) and is inhibited when plasma levels of TH
are adequate. This is an example of: Ans: Negative feedback.
Lipid-soluble hormone receptors are located: Ans: Inside the
plasma membrane in the cytoplasm.
© 2025 All rights reserved
, 2 | Page
The releasing hormones that are made in the hypothalamus travel
to the anterior pituitary via the: Ans: Portal hypophyseal blood
vessels.
What effect does hyperphosphatemia have on other electrolytes?
Ans: Decreases serum calcium. .
Insulin transports which electrolyte in the cell? Ans: Potassium.
Which second messenger is stimulated by epinephrine binding to a
β-adrenergic receptor? Ans: Cyclic adenosine monophosphate
(cAMP). These molecules are the initial link between the first signal
(hormone) and the inside of the cell. For example, the binding of
epinephrine to a β adrenergic-receptor subtype activates (through
a stimulatory G protein) the enzyme, adenylyl cyclase. Adenylyl
cyclase catalyzes the conversion of adenosine triphosphate (ATP)
to the second messenger, 3', and
Regulation of the release of catecholamines from the adrenal
medulla is an example of which type of regulation? Ans: Neural.
© 2025 All rights reserved
, 3 | Page
Which hormone does the second messenger calcium (Ca++) bind to
activate phospholipase C through a G protein? Ans: Angiotensin
II. this bodily element is considered an important second
messenger that facilitates the binding of a hormone (e.g.,
norepinephrine, angiotensin II) to a surface receptor, activating the
enzyme phospholipase C through a G protein inside the plasma
membrane.
The control of calcium in cells is important because it: Ans: Acts
as a second messenger
Where is antidiuretic hormone (ADH) synthesized, and where does
it act? Ans: Hypothalamus; renal tubular cells.
How does a faulty negative-feedback mechanism result in a
hormonal imbalance? Ans: Excessive hormone production results
from a failure to turn off the system.
A deficiency of which chemical may result in hypothyroidism?
Ans: iodine.
© 2025 All rights reserved
, 4 | Page
What imbalance lessens the rate of secretion of parathyroid
hormone Ans: Increased serum calcium levels.
Which condition may result from pressure exerted by a pituitary
tumor? Ans: Hypothyroidism.
Which substance is a water-soluble protein hormone? Ans:
Insulin.
Which of the following is a lipid-soluble hormone? Ans: Cortisol.
When insulin binds its receptors on muscle cells, an increase in
glucose uptake by the muscle cells is the result. This is an example
of what type of effect by a hormone? Ans: Direct.
Graves disease develops from a(n): Ans: Viral infection of the
thyroid gland that causes overproduction of thyroid hormone.
Autoimmune process during which lymphocytes and fibrous tissue
replace thyroid tissue.
© 2025 All rights reserved
