Deck 7: Environmental and Nutritional Diseases

Question 1

Ingestion of aflatoxin, a toxin from Aspergillus flavus fungi, is accompanied by development of cancer in which organ?

A) Thyroid
B) Lung
C) Liver
D) Colon
E) Endometrium

Answer 1

Liver

Question 2

Unopposed exogenous estrogen administration in women after menopause will increase the risk of cancer of which organ?

A) Lung
B) Liver
C) Ovary
D) Cervix
E) Endometrium

Answer 2

Endometrium

Question 3

Lead absorbed from the environment during infancy and childhood is predominantly deposited in which internal organ or organ system?

A) Brain
B) Liver
C) Lungs
D) Bones
E) Skeletal muscles

Answer 3

Bones

Question 4

Leptin is a hormone that acts on the hypothalamic centers for satiety and energy expenditure. Where is leptin synthesized?

A) Liver
B) Thyroid
C) Peripheral fat cells
D) Skeletal muscle cells
E) Nervous system

Question 5

Which is the most common preventable form of mental retardation in the United States?

A) Fetal rubella infection
B) Fetal toxoplasmosis
C) Fetal alcohol syndrome
D) Fetal cytomegalovirus infection
E) Fetal herpesvirus infection

Question 6

Wernicke-Korsakoff syndrome in chronic alcoholics is caused by a deficiency of

A) vitamin A
B) vitamin B₁
C) vitamin C
D) vitamin D
E) vitamin K

Question 7

Xerophthalmia and night blindness typically result from deficiency of which of the following vitamins?

A) Vitamin A
B) Vitamin B₁
C) Vitamin C
D) Vitamin D
E) Vitamin K

Question 8

Frontal bossing of the cranium that imparts a square appearance to the head, pigeon breast deformity, and bow legs are features of a deficiency of which vitamin?

A) Vitamin A
B) Vitamin B₁
C) Vitamin C
D) Vitamin D
E) Vitamin K