MIDTERM 2: Thyroid And Adrenal Glands

Question 0

What effects would you expect to see in adults with a lack of thyroid hormone?

Answer 0

Myxedema

Low metabolic rate

Question 1

Iodine is essential for the synthesis of thyroid hormones
A) true
B) false

Answer 1

A) true

Question 2

What would happen if a thyroid hormone deficiency started in infancy

Answer 2

Cretinism
Mental retardation
Thigh tongue and neck
Disproportional body size

Question 3

What would be the result if too much thyroid hormone?

Answer 3

Exophthalmos
Eyes protrude
Cause Graves’ disease

Question 4

A patient losing weight rapidly, swearing profusely, and is always anxious, what may the patient may be suffering from?
A) hypothyroidism 
B) cretinism 
C) hyperthyroidism
D) hyper secretion of calcitonin

Answer 4

C) hyperthyroidism

Question 5

Which of the following is an indirect effect of parathyroid hormone?
A) increasing osteoclasts activity
B) increasing calcium absorption in the intestines
C) increasing calcium reabsorption in the kidney
D) activating vitamin D

Answer 5

B) increasing calcium absorption in the intestines

Question 6

What cells release parathyroid hormone?
A) oxyphil cells
B) para follicular cells
C) follicular cells
D) parathyroid cells

Answer 6

D) parathyroid cells

Question 7

Which of these stimuli causes blood pressure levels to fall?
A) secretion of renin
B) rising K+ levels
C) secretion of high levels of ACTH
D) secretion of atrial natriuretic peptide

Answer 7

D) secretion of atrial natriuretic peptide

Question 8

Atrial natriuretic peptide is a hormone that controls blood pressure in part by increasing the urinary excretion of sodium
A) true
B) false

Answer 8

A) true

Question 9

Why do students get more colds during finals?
A) stress elevates levels of cortisol
B) stress depressed levels of aldosterone
C) stress decreases glucocorticoid levels
D) professors poison exam papers

Answer 9

A) stress elevates levels of cortisol

Question 10

How are levels of ACTH affected in Addison’s disease?

Answer 10

No negative feedback
Melanocyte-stimulating hormone (MSH)
Darkening of skin

Question 11

What adrenal hormone maintains appropriate blood Na+ levels?
A) cortisol 
B) DHEA
C) aldosterone
D) epinephrine

Answer 11

C) aldosterone

Question 12

The most important regulator of electrolyte concentrations in extracellular fluids is
A) glucagon
B) cortisol
C) aldosterone
D) insulin

Answer 12

C) aldosterone

Question 13

What is the most important regulatory factor controlling the circulating levels of thyroid hormone?
A) thyroid-stimulating hormone (TSH)
B) negative feedback
C) a circadian rhythm of release
D) thyrotropin-releasing hormone (TRH)

Answer 13

B) negative feedback

Question 14

Aldosteronism will cause
A) decreased secretion of renin
B) decreased secretion of ANP (atrial naturetic peptide)
C) decreased loss of K+ in the urine
D) none of the listed responses is correct

Answer 14

A) decreased secretion of renin

Question 15

Which hormone(s) is/are essential to our ability to deal with stress?
A) thyroxine
B) insulin
C) mineralocorticoids
D) glucocorticoids

Answer 15

D) glucocorticoids

Question 16

Which Hooke is the body's major metabolic hormone?
A) adrenocorticotropic hormone
B) anti diuretic hormone
C) parathyroid hormone
D) thyroid hormone

Answer 16

D) thyroid hormone