BIOL 3324 EXAM 4 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
Most calcium in the body is located in ________ - Answers the skeleton
Adults do not increase in height. This suggests that adult bones ________ . - Answers lack
cartilaginous epiphyseal plates
The common precursor for all steroid hormones is ________. - Answers cholesterol
Which endocrine gland is NOT correctly matched to a hormone it produces?
adrenal medulla - catecholamines
zona glomerulosa - aldosterone
hypothalamus - CRH
zona reticularis - ACTH - Answers zona reticularis - ACTH
Which is associated with hyperthyroidism? - Answers muscle weakness
C cells of the thyroid gland secrete ________. - Answers calcitonin
Which of the following hormones is a part of the rapid response (rather than the prolonged response)
to stress? - Answers epinephrine
- Yes, epinephrine is part of the immediate or rapid response to stress. Epinephrine is released from
the adrenal medulla as a result of the increase in the sympathetic nervous system. In fact, the
chromaffin cells in the adrenal medulla act like modified postganglionic neurons.
In response to stress, which of the following changes would happen? - Answers decreased insulin
secretion
- Yes, insulin decreases plasma glucose and during stress we need an increase in plasma glucose as
well as other body fuels. Therefore, insulin secretion would be decreased, in turn increasing plasma
glucose.
Which of the following are symptom(s) of pheochromocytoma? - Answers heart papitations
Yes, due to the increase in epinephrine, heart rate would be increased and you would feel like your
heart was pounding or racing.
Choose which condition has all of the following symptoms: hypertension, hyperglycemia, and a
"moon face."
Cushing's disease
pheochromocytoma
Addison's disease - Answers Cushing's disease
- Yes, a patient with Cushing's would have hypertension, increased blood glucose, and an unusual fat
distribution on the face, known as a "moon face." These symptoms are due to increased levels of
cortisol and can also be seen in patients after long periods of steroid treatment.
What hormone also aids the stress response by promoting water retention and acting as a
vasoconstrictor? - Answers ADH (vasopressin)
- Yes, ADH increases water reabsorption in the distal tubule and collecting duct of the nephron and its
secondary function is to act as a vasoconstrictor.
Which of the following hormones is currently thought to decrease plasma calcium levels in pregnant
women and children?
parathyroid hormone (PTH)
thyroid hormones
calcitonin
calcitriol - Answers calcitonin
- calcitonin is currently thought to decrease plasma calcium levels in children and pregnant women.
PTH promotes the formation of which hormone? - Answers calcitriol
Which of the following would NOT be a way that parathyroid hormone (PTH) could alter plasma
calcium levels? (Which one of the following is FALSE?)
increase osteoblasts on bone
increase reabsorption of calcium in the kidney
increase osteoclasts - Answers increase osteoblasts on bone
- This answer is false. PTH would NOT increase osteoblasts. Osteoblasts store calcium on bone, thus
lowering plasma calcium levels.
Most calcium in the body is located in ________ - Answers the skeleton
Adults do not increase in height. This suggests that adult bones ________ . - Answers lack
cartilaginous epiphyseal plates
The common precursor for all steroid hormones is ________. - Answers cholesterol
Which endocrine gland is NOT correctly matched to a hormone it produces?
adrenal medulla - catecholamines
zona glomerulosa - aldosterone
hypothalamus - CRH
zona reticularis - ACTH - Answers zona reticularis - ACTH
Which is associated with hyperthyroidism? - Answers muscle weakness
C cells of the thyroid gland secrete ________. - Answers calcitonin
Which of the following hormones is a part of the rapid response (rather than the prolonged response)
to stress? - Answers epinephrine
- Yes, epinephrine is part of the immediate or rapid response to stress. Epinephrine is released from
the adrenal medulla as a result of the increase in the sympathetic nervous system. In fact, the
chromaffin cells in the adrenal medulla act like modified postganglionic neurons.
In response to stress, which of the following changes would happen? - Answers decreased insulin
secretion
- Yes, insulin decreases plasma glucose and during stress we need an increase in plasma glucose as
well as other body fuels. Therefore, insulin secretion would be decreased, in turn increasing plasma
glucose.
Which of the following are symptom(s) of pheochromocytoma? - Answers heart papitations
Yes, due to the increase in epinephrine, heart rate would be increased and you would feel like your
heart was pounding or racing.
Choose which condition has all of the following symptoms: hypertension, hyperglycemia, and a
"moon face."
Cushing's disease
pheochromocytoma
Addison's disease - Answers Cushing's disease
- Yes, a patient with Cushing's would have hypertension, increased blood glucose, and an unusual fat
distribution on the face, known as a "moon face." These symptoms are due to increased levels of
cortisol and can also be seen in patients after long periods of steroid treatment.
What hormone also aids the stress response by promoting water retention and acting as a
vasoconstrictor? - Answers ADH (vasopressin)
- Yes, ADH increases water reabsorption in the distal tubule and collecting duct of the nephron and its
secondary function is to act as a vasoconstrictor.
Which of the following hormones is currently thought to decrease plasma calcium levels in pregnant
women and children?
parathyroid hormone (PTH)
thyroid hormones
calcitonin
calcitriol - Answers calcitonin
- calcitonin is currently thought to decrease plasma calcium levels in children and pregnant women.
PTH promotes the formation of which hormone? - Answers calcitriol
Which of the following would NOT be a way that parathyroid hormone (PTH) could alter plasma
calcium levels? (Which one of the following is FALSE?)
increase osteoblasts on bone
increase reabsorption of calcium in the kidney
increase osteoclasts - Answers increase osteoblasts on bone
- This answer is false. PTH would NOT increase osteoblasts. Osteoblasts store calcium on bone, thus
lowering plasma calcium levels.
