Chapter 25 Quiz 1

Q1: Which of the following is/are physical barriers?

• skin

• sebum

• blood clot

• saliva

• nasal hairs

Q2: Which of the following is/are chemical barriers?

• skin

• sebum

• blood clot

• saliva

• nasal hairs

Q3: Which of the following are involved in the formation of a blood clot?

• red blood cells

• blood platelets

• white blood cells

• antibodies

• fibrin

Q4: Phagocytes target only certain pathogens but not non-pathogenic substances.

• True

• False

Q5: A large amount of phagocytes can be found at the wound.

• True

• False

Q6: The swelling of wound is caused by the excessive accumulation of blood at the wound.

• True

• False