Eight questions on the structure and function of the skin

Structure and function of the skin
Created 2019.
This exercise will ask you a set of eight questions on the structure and function of skin. Each question contains only one correct answer.
 
If you want to read up on it, you can do so by clicking on the links below.
 
 
Learning Objectives
 
  • Name structural components of the normal epidermis and its appendages
  • Describe the principal functions of the skin and its components
Created by: Dr Muhammad Wasay Ali Khan, DermNet NZ Volunteer
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
Structure and function of the skin
Created 2019.
This exercise will ask you a set of eight questions on the structure and function of skin. Each question contains only one correct answer.
 
If you want to read up on it, you can do so by clicking on the links below.
 
 
Learning Objectives
 
  • Name structural components of the normal epidermis and its appendages
  • Describe the principal functions of the skin and its components
Created by: Dr Muhammad Wasay Ali Khan, DermNet NZ Volunteer
Editor: Adjunct A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand
1. The area of the skin of an average adult is about:
a. 0.4 m
b. 0.8 m
c. 1.8 m
d. 4 m
2. Select the site with the thinnest skin thickness:
a. Thigh
b. Scrotum
c. Soles
d. Palms
3. The total weight of skin of an average adult is about:
a. 5 kg
b. 10 kg
c. 20 kg
d. 30 kg
e. 40 kg
4. The pH of normal skin is:
a. 5.0
b. 5.5
c. 6.0
d. 6.5
e. 7.0
5. Select the chromophore with the colour "red-brown":
a. Oxidised haemoglobin
b. Deoxidised haemoglobin
c. Carotene
d. Haemosiderin
6. In normal skin, melanin is found in which layer of skin:
a. Subcutaneous tissue
b. Hair follicles
c. Epidermis
d. Fatty tissue
7. Albinos have white skin because:
a. They have no melanocytes
b. Their melanocytes produce white melanin
c. Their melanocytes produce no melanin
d. The melanin is destroyed after production
8. Melanin is increased by:
a. Corticosteroids
b. Melatonin
c. Ultraviolet radiation
d. Zinc paste
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