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This quiz covers the basic cellular anatomy of the skin, and its accessory structures.

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Cellular Anatomy of the Skin

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Question 1
From superficial to deep, what are the layers of the epidermis?
A
Stratum lucidum → Stratum spinosum → Stratum granulosum → Stratum corneum → Stratum basale
B
Stratum corneum → Stratum lucidum → Stratum spinosum → Stratum granulosum → Stratum basale
C
Stratum granulosum → Stratum spinosum → Stratum corneum → Stratum lucidum → Stratum basale
D
Stratum corneum → Stratum lucidum → Stratum granulosum → Stratum spinosum → Stratum basale
E
Stratum lucidum → Stratum corneum → Stratum spinosum → Stratum granulosum → Stratum basale
Question 2
In which layer of the epidermis would you find melanocytes?
A
Stratum basale
B
Stratum spinosum
C
Stratum granulosum
D
Stratum corneum
E
Stratum lucidum
Question 2 Explanation: 
Melanocytes are responsible for melanin production, and are found in the deepest layer of the epidermis.
Question 3
Which cells are responsible for sensory sensation?
A
Langerhan's cells
B
Mast cells
C
Melanocytes
D
Fibroblasts
E
Merkel cells
Question 3 Explanation: 
Merkel cells are mechanoreceptors, and are responsible for light touch sensation.
Question 4
Which of the following cells are not normally found in the epidermis?
A
Keratinocytes
B
Mast cells
C
Melanocytes
D
Langerhan's cells
E
Merkel cells
Question 4 Explanation: 
Mast cells are normally found in the dermis, concentrated around blood vessels.
Question 5
From which layer of the skin are the hair follicles derived?
A
The epidermis
B
The papillary layer of the dermis
C
The reticular layer of the dermis
D
The hypodermis
E
The subcutaneous fat
Question 5 Explanation: 
Hair follicles are derived from the epidermis, but then descend down into the reticular layer of the dermis.
Question 6
What is the main function of eccrine glands?
A
Under hormonal control they secrete fats and proteins, producing an odour.
B
Production of antimicrobial agents to help protect the skin from infection.
C
Production of sebum, a waterproofing substance. This will be secreted via the hair follicles.
D
Secretion of water to the surface of the skin. This will cool the body by evaporation and therefore help to thermoregulate.
E
Delivery of nutrients to the surface of the skin, allowing the skin-flora to thrive and provide innate immunity.
Question 7
The groin and axillary region are more abundant in what type of skin gland?
A
Eccrine
B
Apocrine
C
Sebaceous
Question 8
Which of the following cells are part of the skin immune system?
A
Kuppfer cells
B
Keratinocytes
C
Langerhan's cells
D
Fibroblasts
E
Littoral cells
Question 8 Explanation: 
Langerhan's cells are the macrophages of the skin, and are found in the stratum basale layer of the epidermis.
Question 9
Which of the following is not a function of the papillary layer of the dermis?
A
Thermoregulation
B
Waste removal from the epidermis
C
Production of sebum to waterproof the skin
D
Nutrient delivery for keratinocyte growth
Question 9 Explanation: 
The sebaceous glands are responsible for the production of sebum; these are found in the reticular layer of the dermis.
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