How many lines of defense are found in human immune system?
a) two
b) three
c) four
d) five
Explanation: first, second and third line of defense
In addition to the defense system, which of the following function is/are also performed by the skin?
a) insulation
b) temperature regulation
c) sensation
d) all of these
Our body’s first line of defense is………
a) specific
b) non specific
c) both a and b
d) none of these
Skin is comprised of …..layer/s.
a) two
b) three
c) four
d) one
Explanation: 1. Epidermis and 2. Dermis
How skin epidermis provide barrier to the invading microorganisms?
a) it has multiple layers of tightly packed cells
b) shedding of dead cells remove many attached microbes
c) epidermal dendritic cells actively patrol the skin to phagocytize pathogens
d) all of these
Epidermal dendritic cells are involved in……
a) antibody production
b) cytotoxicity
c) pathogen phagocytosis
d) all of these
