Immunology practice questions

Question: Which part of the brain controls body temperature?

Answer Choices:
A. brain stem
B. cerebellum
C. hypothalamus
D. thalamus

Answer: C. hypothalamus

Question: In the crisis phase, fever is reduced by the hypothalamus stimulating vasoconstriction.

Answer Choices:
True / False

Answer: False

Question: Which of the following lists in the correct order the events of acute inflammation after tissue injury?

Answer Choices:
A. altered function, edema, pain, heat, erythema
B. erythema, edema, heat, pain, altered function
C. heat, pain, edema, erythema, altered function
D. heat, pain, erythema, altered function, edema

Answer: B. erythema, edema, heat, pain, altered function

Question: Diapedesis occurs in arteries.

Answer Choices:
True / False

Answer: False

Question: Immediately after injury, during acute inflammation, vasodilation occurs to deliver leukocytes to the site.

Answer Choices:
True / False

Answer: False

Question: Phagocytic cells can clear granulomas caused by pathogens such as Mycobacterium tuberculosis.

Answer Choices:
True / False

Answer: False

Question: Propionibacterium acnes can use sebum as a food source.

Answer Choices:
True / False

Answer: True

Question: The normal pH of urine is 7.0.

Answer Choices:
True / False

Answer: False

Question: Angioedema is a disease that affects the complement system.

Answer Choices:
True / False

Answer: True

Question: In healthy individuals, the upper respiratory tract and lungs are sterile.

Answer Choices:
True / False

Answer: False

Question: Which statement is true?

Answer Choices:
A. Chronic inflammation is caused only by pathogens.
B. Granulomas are examples of chronic inflammation.
C. Mycobacterium tuberculosis does not cause granulomas.
D. Inflammation occurs only if a viral pathogen is present.

Answer: B. Granulomas are examples of chronic inflammation.

Question: Which of the following statements about LPS is false?

Answer Choices:
A. Only gram-negative bacteria have LPS.
B. LPS can stimulate fever in the host.
C. LPS is an endogenous pyrogen.
D. The lipid A component of LPS is the toxic component.

Answer: C. LPS is an endogenous pyrogen.

Question: Serum is the liquid portion of blood without clotting factors.

Answer Choices:
True / False

Answer: True

Question: Which of the following is not a common component of neutrophil extracellular traps?

Answer Choices:
A. actin filaments
B. chromatin
C. gelatinase
D. lactoferrin

Answer: A. actin filaments

Question: All cytokines are chemokines.

Answer Choices:
True / False

Answer: False