• NURS 6501EXAM 09/13/2026
NURS 6501 Advanced Pathophysiology Exam
QUESTIONS AND VERIFIED ANSWERS RATED
A+ | 2026/2027 GUIDE | GCU| 2026/2027 Latest
Update | Complete Chapter Questions &
Answers with Rationales | Verified Questions &
Answers | Graded A+
1. 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:
a. Positive feedback
b. Neural regulation
c. Negative feedback
P 1
, • NURS 6501EXAM 09/13/2026
d. Physiologic regulation
- Correct Answer :Negative feedback. Feedback systems provide precise monitoring and control of the cellular
environment. Negative feedback occurs because the changing chemical, neural, or endocrine response to a
stimulus negates the initiating change that triggered the release of the hormone. Thyrotropin-releasing hormone
(TRH) from the hypothalamus stimulates TSH secretion from the anterior pituitary. Secretion of TSH stimulates
the synthesis and secretion of THs. Increasing levels of T4 and triiodothyronine (T3) then generate negative
feedback on the pituitary and hypothalamus to inhibit TRH and TSH synthesis.
1. Lipid-soluble hormone receptors are located:
a. Inside the plasma membrane in the cytoplasm
b. On the outer surface of the plasma membrane
c. Inside the mitochondria
d. On the inner surface of the plasma membrane –
Correct Answer :Inside the plasma membrane in the cytoplasm. Lipid-soluble hormone receptors are located
inside the plasma membrane and easily diffuse across the plasma membrane to bind to either cytosolic or
nuclear receptors.
1. The releasing hormones that are made in the hypothalamus travel to the anterior pituitary via the:
a. Vessels of the zona fasciculata
b. Hypophyseal stalk
c. Infundibular stem
d. Portal hypophyseal blood vessels
Portal hypophyseal blood vessels. –
Correct Answer :Releasing and inhibitory hormones are synthesized in the hypothalamus and are secreted into
the portal blood vessels through which they travel to the anterior pituitary hormones.
1. Which mineral is needed for thyroid-stimulating hormone (TSH) to stimulate the secretion of thyroid hormone
(TH)?
a. Iron
P 2
, • NURS 6501EXAM 09/13/2026
b. Iodide
c. Zinc
d. Copper –
Correct Answer :Iodide. TSH, which is synthesized and stored in the anterior pituitary, stimulates secretion of
TH by activating intracellular processes, including the uptake of iodine necessary for the synthesis of TH.
1. What effect does hyperphosphatemia have on other electrolytes?
a. Increases serum calcium
b. Decreases serum magnesium
c. Decreases serum calcium
d. Increases serum magnesium
Decreases serum calcium. –
Correct Answer :Hyperphosphatemia leads to hypocalcemia. Remember that phos and calcium are inversely
related.
1. Insulin transports which electrolyte in the cell?
a. Potassium
b. Sodium
c. Calcium
d. Phosphorus –
Correct Answer :Potassium. Insulin facilitates the intracellular transport of potassium, phosphate, and
magnesium.
1. Which second messenger is stimulated by epinephrine binding to a β-adrenergic receptor?
a. Calcium
b. Inositol triphosphate (IP3)
c. Diacylglycerol (DAG)
P 3
, • NURS 6501EXAM 09/13/2026
d. Cyclic adenosine monophosphate (cAMP)
- Correct Answer :Cyclic adenosine monophosphate (cAMP). Second-messenger 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 5'-cAMP.
1. Regulation of the release of catecholamines from the adrenal medulla is an example of which type of
regulation?
a. Negative feedback
b. Neural
c. Positive feedback
d. Physiologic –
Correct Answer :Neural. The release of hormones occurs either in response to an alteration in the cellular
environment or in the process of maintaining a regulated level of certain hormones or certain substances.
Several different mechanisms, one of which is neural control (e.g., stress-induced release of catecholamines
from the adrenal medulla), regulate the release of hormones.
1. Which hormone does the second messenger calcium (Ca++) bind to activate phospholipase C through a G
protein?
a. Angiotensin II
b. Estrogen
c. Thyroxine
d. Testosterone –
Correct Answer :Angiotensin II. Ca++ 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.
1. The control of calcium in cells is important because it:
a. Is controlled by the calcium negative-feedback loop.
b. Is continuously synthesized.
P 4
NURS 6501 Advanced Pathophysiology Exam
QUESTIONS AND VERIFIED ANSWERS RATED
A+ | 2026/2027 GUIDE | GCU| 2026/2027 Latest
Update | Complete Chapter Questions &
Answers with Rationales | Verified Questions &
Answers | Graded A+
1. 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:
a. Positive feedback
b. Neural regulation
c. Negative feedback
P 1
, • NURS 6501EXAM 09/13/2026
d. Physiologic regulation
- Correct Answer :Negative feedback. Feedback systems provide precise monitoring and control of the cellular
environment. Negative feedback occurs because the changing chemical, neural, or endocrine response to a
stimulus negates the initiating change that triggered the release of the hormone. Thyrotropin-releasing hormone
(TRH) from the hypothalamus stimulates TSH secretion from the anterior pituitary. Secretion of TSH stimulates
the synthesis and secretion of THs. Increasing levels of T4 and triiodothyronine (T3) then generate negative
feedback on the pituitary and hypothalamus to inhibit TRH and TSH synthesis.
1. Lipid-soluble hormone receptors are located:
a. Inside the plasma membrane in the cytoplasm
b. On the outer surface of the plasma membrane
c. Inside the mitochondria
d. On the inner surface of the plasma membrane –
Correct Answer :Inside the plasma membrane in the cytoplasm. Lipid-soluble hormone receptors are located
inside the plasma membrane and easily diffuse across the plasma membrane to bind to either cytosolic or
nuclear receptors.
1. The releasing hormones that are made in the hypothalamus travel to the anterior pituitary via the:
a. Vessels of the zona fasciculata
b. Hypophyseal stalk
c. Infundibular stem
d. Portal hypophyseal blood vessels
Portal hypophyseal blood vessels. –
Correct Answer :Releasing and inhibitory hormones are synthesized in the hypothalamus and are secreted into
the portal blood vessels through which they travel to the anterior pituitary hormones.
1. Which mineral is needed for thyroid-stimulating hormone (TSH) to stimulate the secretion of thyroid hormone
(TH)?
a. Iron
P 2
, • NURS 6501EXAM 09/13/2026
b. Iodide
c. Zinc
d. Copper –
Correct Answer :Iodide. TSH, which is synthesized and stored in the anterior pituitary, stimulates secretion of
TH by activating intracellular processes, including the uptake of iodine necessary for the synthesis of TH.
1. What effect does hyperphosphatemia have on other electrolytes?
a. Increases serum calcium
b. Decreases serum magnesium
c. Decreases serum calcium
d. Increases serum magnesium
Decreases serum calcium. –
Correct Answer :Hyperphosphatemia leads to hypocalcemia. Remember that phos and calcium are inversely
related.
1. Insulin transports which electrolyte in the cell?
a. Potassium
b. Sodium
c. Calcium
d. Phosphorus –
Correct Answer :Potassium. Insulin facilitates the intracellular transport of potassium, phosphate, and
magnesium.
1. Which second messenger is stimulated by epinephrine binding to a β-adrenergic receptor?
a. Calcium
b. Inositol triphosphate (IP3)
c. Diacylglycerol (DAG)
P 3
, • NURS 6501EXAM 09/13/2026
d. Cyclic adenosine monophosphate (cAMP)
- Correct Answer :Cyclic adenosine monophosphate (cAMP). Second-messenger 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 5'-cAMP.
1. Regulation of the release of catecholamines from the adrenal medulla is an example of which type of
regulation?
a. Negative feedback
b. Neural
c. Positive feedback
d. Physiologic –
Correct Answer :Neural. The release of hormones occurs either in response to an alteration in the cellular
environment or in the process of maintaining a regulated level of certain hormones or certain substances.
Several different mechanisms, one of which is neural control (e.g., stress-induced release of catecholamines
from the adrenal medulla), regulate the release of hormones.
1. Which hormone does the second messenger calcium (Ca++) bind to activate phospholipase C through a G
protein?
a. Angiotensin II
b. Estrogen
c. Thyroxine
d. Testosterone –
Correct Answer :Angiotensin II. Ca++ 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.
1. The control of calcium in cells is important because it:
a. Is controlled by the calcium negative-feedback loop.
b. Is continuously synthesized.
P 4
