Bates Chapter 9 (The Integumentary System) Already Graded A
1. What is the primary function of the skin?
A) To synthesize vitamin D
B) To regulate body temperature
C) To provide nonverbal communication
D) To provide a barrier to protect the body
Correct answer: D) To provide a barrier t...
Bates Chapter 9 (The Integumentary System) Already Graded A
1. What is the primary function of the skin?
A) To synthesize vitamin D
B) To regulate body temperature
C) To provide nonverbal communication
D) To provide a barrier to protect the body
Correct answer: D) To provide a barrier to protect the body
2. What does the skin's barrier function protect against?
A) Only mechanical injuries
B) Only chemical injuries
C) All of the above (mechanical, chemical, thermal, and UV light sources)
D) Only microbial penetration
Correct answer: C) All of the above (mechanical, chemical, thermal, and UV light sources)
3. How does the skin regulate body temperature?
A) By storing heat through subcutaneous insulation
B) By dissipating heat through sweat glands
C) By synthesizing vitamin D
D) By providing nonverbal communication
Correct answer: B) By dissipating heat through sweat glands
, 4. What is synthesized by the skin from cholesterol in the presence of UV light?
A) Carotene
B) Melanin
C) Vitamin D
D) Bilirubin
Correct answer: C) Vitamin D
5. Which layer of the skin is thin, devoid of blood vessels, and divided into two layers?
A) Epidermis
B) Dermis
C) Subcutaneous layer
D) Hypodermis
Correct answer: A) Epidermis
bilirubin ✔️bile pigment formed in the liver from hemoglobin
hemoglobin ✔️which circulates in the red cells and carries most of the oxygen of the blood, exists in
two forms
oxyhemoglobin ✔️hemoglobin combined with oxygen
a bright red pigment, predominates in the arteries and capillaries. An increase in blood flow through the
arteries to the capillaries causes a reddening of the skin (e.g., with blushing), whereas the opposite
change usually produces pallor. The skin of light-colored people is normally redder on the palms, soles,
face, neck, and upper chest.
deoxyhemoglobin ✔️hemoglobin without oxygen
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