BMS 300 EXAM 2 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
A drop in phosphate levels would act as a ___ stimuli A. Humoral B.
Hormonal C. Neural D. None of the above - ANSWERS-A. Humoral
Which type of stimuli causes ADH release? A. Humoral B. Hormonal C.
Neural D. All of the above - ANSWERS-A. Humoral
A mutation that causes an excess secretion of PTH will most likely
result in ____________ in the blood. A. High levels of calcium and
phosphate B. Low levels of calcium and phosphate C. High levels of
phosphate and low levels of calcium D. Low levels of phosphate and
high levels of calcium - ANSWERS-D. Low levels of phosphate and
high levels of calcium
A tumor in hypothalamus that decreases secretion ________ can in turn
decrease the levels of FSH and LSH A) Thyrotropin Releasing Hormone
(TRH) B) Gonadotropin Releasing Hormone (GnRH) C) corticotropin-
releasing hormone (CRH) D) Prolactin Releasing Hormone (PRH) -
ANSWERS-B. Gonadotropin Releasing Hormone (GnRH)
____________ released from the parathyroid gland stimulates osteoclast
activity if there are low calcium levels in the blood. A. calcitonin B.
END OF
PAGE
1
, BMS 300 EXAM 2 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
phosphatonin C. parathyroid hormone D. T3 and T4 - ANSWERS-C.
Parathyroid hormone
In response Angiotensin II, aldosterone is secreted by _______ in the
adrenal cortex to influence sodium levels in the blood. A. zona
glomerulosa B. zona fasciculata C. zona reticularis D. zona medulla -
ANSWERS-A. Zona glomerulosa
To prevent jet-lag one can use __________ supplements. A.
Phosphatonin B. Leptin C. Melatonin D. Calcitonin - ANSWERS-C.
Melatonin
__________ is a hormone released by adipose tissue which decreases
inflammation, increases insulin sensitivity and breakdown of fats A)
adiponectin B) leptin C) aldosterone D) prolactin - ANSWERS-A.
Adiponectin
Phosphate homeostasis is another crucial responsibility of the endocrine
system. In the case of high phosphate concentrations throughout the
body, osteoblasts and osteocytes synthesize bone derived fibroblast
growth factor 23 (FGF23)/phosphatonin to help lower phosphate levels.
END OF
PAGE
2
, BMS 300 EXAM 2 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Which of the following is NOT a mechanism by which phosphate levels
are lowered via FGF23 endocrine control? A. FGF23 blocks parathyroid
hormone synthesis which has downstream affects to lower phosphate
levels. B. FGF23 inhibits phosphate from being reabsorbed back into the
blood in the kidneys. C. FGF23 regulates PRL release via negative
feedback to stop the production of phosphate throughout the body. D.
FGF23 inhibts the synthesis of Vitamin D which acts to decrease
phosphate absorption from diet. - ANSWERS-C. FGF23 regulates PRL
release via negative feedback to stop the production of phosphate
throughout the body.
Inhibition of ____________ may MOST LIKELY cause gigantism A.
somatomedin B. GHIH C. GHRH D. GH - ANSWERS-B. GHIH
Resting membrane potential is influenced by the number of
__________, while graded membrane potential is influenced by the
number of open __________ sodium channels. A) ligand-gated; voltage-
gated B) leak; ligand-gated C) voltage-gated; ligand- gated D) ligand-
gated; leak - ANSWERS-B) leak; ligand-gated
In a myelinated axon, an action potential is generated in the Nodes of
Ranvier because of the presence of ___________ and so it travels faster
END OF
PAGE
3
, BMS 300 EXAM 2 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
than in an unmyelinated axon A) Ligand gated sodium and potassium
channels B) Voltage gated sodium and potassium channels C) Ligand
gated sodium and calcium channels D) Voltage gated calcium and
potassium channels - ANSWERS-B) Voltage gated sodium and
potassium channels
The example of a polysynaptic reflex is ___________ A. patellar tendon
tap reflex B. stretch reflex C. withdrawal reflex D. I don't know -
ANSWERS-C. withdrawal reflex
A nerve agent that blocks voltage-gated Ca2+ channels will be localized
in the ______ of a neuron A. Cell body B. Telodendrion C. Axoplasm D.
Post-synaptic membrane - ANSWERS-B. Telodendrion
___________ accelerate the transmission of an action potential along the
axon A. Astrocytes B. Oligodendrocytes C. Schwann cells D.
Ependymal cells E. More than one answer is correct - ANSWERS-E.
More than one answer is correct: B and C
END OF
PAGE
4
QUESTIONS AND
ANSWERS 2026 - 2027
A drop in phosphate levels would act as a ___ stimuli A. Humoral B.
Hormonal C. Neural D. None of the above - ANSWERS-A. Humoral
Which type of stimuli causes ADH release? A. Humoral B. Hormonal C.
Neural D. All of the above - ANSWERS-A. Humoral
A mutation that causes an excess secretion of PTH will most likely
result in ____________ in the blood. A. High levels of calcium and
phosphate B. Low levels of calcium and phosphate C. High levels of
phosphate and low levels of calcium D. Low levels of phosphate and
high levels of calcium - ANSWERS-D. Low levels of phosphate and
high levels of calcium
A tumor in hypothalamus that decreases secretion ________ can in turn
decrease the levels of FSH and LSH A) Thyrotropin Releasing Hormone
(TRH) B) Gonadotropin Releasing Hormone (GnRH) C) corticotropin-
releasing hormone (CRH) D) Prolactin Releasing Hormone (PRH) -
ANSWERS-B. Gonadotropin Releasing Hormone (GnRH)
____________ released from the parathyroid gland stimulates osteoclast
activity if there are low calcium levels in the blood. A. calcitonin B.
END OF
PAGE
1
, BMS 300 EXAM 2 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
phosphatonin C. parathyroid hormone D. T3 and T4 - ANSWERS-C.
Parathyroid hormone
In response Angiotensin II, aldosterone is secreted by _______ in the
adrenal cortex to influence sodium levels in the blood. A. zona
glomerulosa B. zona fasciculata C. zona reticularis D. zona medulla -
ANSWERS-A. Zona glomerulosa
To prevent jet-lag one can use __________ supplements. A.
Phosphatonin B. Leptin C. Melatonin D. Calcitonin - ANSWERS-C.
Melatonin
__________ is a hormone released by adipose tissue which decreases
inflammation, increases insulin sensitivity and breakdown of fats A)
adiponectin B) leptin C) aldosterone D) prolactin - ANSWERS-A.
Adiponectin
Phosphate homeostasis is another crucial responsibility of the endocrine
system. In the case of high phosphate concentrations throughout the
body, osteoblasts and osteocytes synthesize bone derived fibroblast
growth factor 23 (FGF23)/phosphatonin to help lower phosphate levels.
END OF
PAGE
2
, BMS 300 EXAM 2 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Which of the following is NOT a mechanism by which phosphate levels
are lowered via FGF23 endocrine control? A. FGF23 blocks parathyroid
hormone synthesis which has downstream affects to lower phosphate
levels. B. FGF23 inhibits phosphate from being reabsorbed back into the
blood in the kidneys. C. FGF23 regulates PRL release via negative
feedback to stop the production of phosphate throughout the body. D.
FGF23 inhibts the synthesis of Vitamin D which acts to decrease
phosphate absorption from diet. - ANSWERS-C. FGF23 regulates PRL
release via negative feedback to stop the production of phosphate
throughout the body.
Inhibition of ____________ may MOST LIKELY cause gigantism A.
somatomedin B. GHIH C. GHRH D. GH - ANSWERS-B. GHIH
Resting membrane potential is influenced by the number of
__________, while graded membrane potential is influenced by the
number of open __________ sodium channels. A) ligand-gated; voltage-
gated B) leak; ligand-gated C) voltage-gated; ligand- gated D) ligand-
gated; leak - ANSWERS-B) leak; ligand-gated
In a myelinated axon, an action potential is generated in the Nodes of
Ranvier because of the presence of ___________ and so it travels faster
END OF
PAGE
3
, BMS 300 EXAM 2 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
than in an unmyelinated axon A) Ligand gated sodium and potassium
channels B) Voltage gated sodium and potassium channels C) Ligand
gated sodium and calcium channels D) Voltage gated calcium and
potassium channels - ANSWERS-B) Voltage gated sodium and
potassium channels
The example of a polysynaptic reflex is ___________ A. patellar tendon
tap reflex B. stretch reflex C. withdrawal reflex D. I don't know -
ANSWERS-C. withdrawal reflex
A nerve agent that blocks voltage-gated Ca2+ channels will be localized
in the ______ of a neuron A. Cell body B. Telodendrion C. Axoplasm D.
Post-synaptic membrane - ANSWERS-B. Telodendrion
___________ accelerate the transmission of an action potential along the
axon A. Astrocytes B. Oligodendrocytes C. Schwann cells D.
Ependymal cells E. More than one answer is correct - ANSWERS-E.
More than one answer is correct: B and C
END OF
PAGE
4
