Deck 28: Endocrine Wet Labs and Human Metabolism

Question 1

Increasing levels of thyroid hormone cause .

A) inhibition of TRH and stimulation of TSH
B) stimulation of TRH and TSH
C) inhibition of TRH and TSH

Answer 1

C

Question 2

Which hormone is the single most important one that influences metabolism?

A) thyroid hormone (T3 and T4)
B) thyroid stimulating hormone (TSH)
C) thyrotropin-releasing hormone (TRH)

Answer 2

A

Question 3

Which hormone stimulates the release of thyroid hormone?

A) GHRH
B) GHIH
C) thyroid stimulating hormone (TSH)
D) thyrotropin-releasing hormone (TRH)

Answer 3

C

Question 4

Which of the gonadotropins injected into the frog actually caused ovulation?

A) ACTH
B) TSH
C) FSH
D) LH

Question 5

Thyroid stimulating hormone (TSH) is produced by the _.

A) anterior pituitary
B) posterior pituitary
C) hypothalamus
D) thyroid gland

Question 6

Besides controlling metabolic rate, thyroid hormone has many functions. These include .

A) stimulating production of sex cells (egg an sperm) and secondary sex characteristics
B) enabling the body to resist both short-term and long-term stressors
C) regulation of blood calcium, and release of calcium from bones
D) regulation of growth and development, and maturation of the nervous system

Question 7

Where is thyroid releasing hormone (TRH) produced?

A) thyroid gland
B) anterior pituitary
C) posterior pituitary
D) hypothalamus

Question 8

We can stimulate amphibians to ovulate by injecting _.

A) growth hormone
B) gonadotropins
C) thyroid hormone
D) estrogen and progesterone

Question 9

Which reason best explains why hyperinsulinism in the fish causes it to become comatose?

A) High blood glucose levels damage the kidneys.
B) High blood glucose levels make the brain shut down.
C) Low blood glucose levels shut down the liver.
D) Low blood glucose levels deprive the brain of fuel.

Question 10

Many factors modify metabolic rate. Which one increases metabolic activity?

A) increasing exercise
B) hypothermia (lowered body temperature)
C) aging
D) obesity

Question 11

Metabolism refers to _ .

A) all the chemical reactions necessary to maintain life.
B) all the anabolic processes in the body
C) all the catabolic processes in the body

Question 12

A patient suffering from hypothyroidism has developed a goiter. This occurred because .

A) the mental sluggishness associated with hypothyroidism stimulates the thyroid gland to increase in size
B) low levels of thyroid hormone removed inhibition from the anterior pituitary and hypothalamus, more TSH was produced and it stimulated the thyroid gland to increase in size
C) the low activity level associated with hypothyroidism stimulates the thyroid land to increase in size
D) low levels of thyroid hormone stimulate the thyroid gland to increase in size

Question 13

Graves' disease is an autoimmune disease in which the body makes abnormal antibodies that mimic the action of TSH on the thyroid gland. You would expect a patient with this disease to have .

A) high levels of thyroid hormones
B) normal thyroid function
C) low levels of thyroid hormones

Question 14

How is body weight correlated to thyroid levels?

A) Increased thyroid hormone causes muscles to bulk up, thus increasing weight.
B) Increased thyroid hormone causes the body to burn food at a faster rate, reducing the chance that calories from food will be stored as fat and lead to weight gain.
C) Increased thyroid hormone causes more food to be stored as fat, leading to weight gain.
D) Increased thyroid hormone causes a decrease in BMR, leading to weight gain.

Question 15

After your fish became comatose secondary to hyperinsulinism, you administered to restore normal function.

A) glucose
B) epinephrine
C) insulin
D) glucagon

Question 16

Hyperthyroidism is associated with .

A) increased BMR (basal metabolic rate)
B) weight gain
C) feeling chilled
D) lethargy