Question

question 79 (1 point)
what is the process that completely destroys all microbial life, including spores?
○ a sterilization
○ b cleaning
○ c decontamination
○ d disinfection

question 80 (1 point)
what is the oily substance secreted by the skins oil glands that lubricates the hair and skin?
○ a keratin
○ b helix
○ c sebum
○ d mucous

question 81 (1 point)
a hair follicle filled with keratin and sebum forms a ____.
○ a bulla
○ b comedo
○ c cicatrix
○ d nodule

Explanation:

Question 79

Sterilization is defined as the process that completely destroys all microbial life, including spores. Cleaning removes dirt but not all microbes, decontamination reduces contamination, and disinfection destroys most but not all microbial life (including not necessarily spores).

Sebum is the oily substance secreted by the skin's sebaceous (oil) glands to lubricate hair and skin. Keratin is a protein in hair/nails, helix is a structure, and mucous is a slimy substance (not from skin oil glands).

A comedo (like a blackhead/whitehead) is formed when a hair follicle is filled with keratin and sebum. A bulla is a blister, cicatrix is a scar, and nodule is a solid lesion, none matching the follicle - keratin - sebum description.

Answer:

a. Sterilization

Question 80