Questions[]
1) How many skin cells do you have covering your body?[]
A) About ten thousand
B) About one million
C) About ten million
D) Billions upon billions
Correct Answer: D
2) What can you conclude from the fact that your skin prevents harmful germs from entering your body?[]
A) Without skin, your immune system wouldn't function
B) Germs can enter your body through cuts and scrapes
C) Wearing heavy clothes will protect you against most diseases
D) Your skin cells contain powerful antibiotics
Correct Answer: B
3) How does your body make new skin?[]
A) Through the division of existing skin cells
B) By recycling old skin cells
C) By changing blood cells into skin cells
D) By making existing skin cells bigger
Correct Answer: A
4) What might happen if you did not have melanocytes?[]
A) Your skin would not protect you against disease
B) Your skin would be extremely pale
C) You would not be able to produce new skin cells
D) Your skin would become brittle and papery
Correct Answer: B
5) As people age, their bodies stop making elastin. This leads to:[]
A) Increased likelihood of illness
B) Brown spots on the skin
C) Wrinkles and sagging skin
D) The inability to sweat
Correct Answer: C
6) Place the following layers of skin in order, from outermost to innermost: A) Dermis; B) Epidermis; C) Hypodermis[]
A) C, A, B
B) B, C, A
C) B, A, C
D) A, B, C
Correct Answer: C
7) What do sebaceous glands, hair follicles, and sweat glands have in common?[]
A) They all produce new skin cells
B) They all fall off and are replaced every few weeks
C) They're all part of the immune system
D) They're all found in the dermis
Correct Answer: D
8) Which bodily system — parts of which can be found in the skin — is responsible for your sense of touch?[]
A) The nervous system
B) The immune system
C) The muscular system
D) The endocrine system
Correct Answer: A
9) Which word best describes the hypodermis?[]
A) Useless
B) Muscular
C) Hard
D) Fatty
Correct Answer: D
10) Where can you find dead skin cells?[]
A) Your innermost layer of skin
B) Your outermost layer of skin
C) The border between the epidermis and the dermis
D) The border between the dermis and the hypodermis
Correct Answer: B