Integumentary System Quiz

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Integumentary System

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1. Which cell type produces a pigment that affords the skin some protection against ultraviolet radiation?

1. Keratinocytes

2. Melanocytes

3. Dendrocytes

4. Merkel cells

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2. Three functions of the skin are to___

1. Store fat, produce sweat, and receive stimuli

2. Synthesise vitamin D, excrete bile and provide a barrier to the entry of bacteria

3. Produce keratin, assist in the immune response and produce lymphocytes

4. Produce melanin, secrete sebum and minimise water loss

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3. The skin participates in the production of vitamin D when which of the following occurs? When___

1. Calcium is present

2. Signalled to by the hormone PTH.

3. Exposed to ultraviolet radiation.

4. The precursor molecule is produced by the liver.

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4. Which layer of the integument is the most superficial layer?

1. The hypodermis

2. Stratum granulosum

3. Stratum corneum

4. Reticular dermal layer

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5. A drug that is applied to the skin and exerts its therapeutic effect systemically is said to be administered___

1. Transdermally

2. Topically

3. Intradermally

4. Subcutaneously

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6. Which of the following is NOT a sensory receptor of the skin?

1. Meissner corpuscle

2. Apocrine gland

3. Root hair plexus

4. Nociceptor

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7. Which of the following situations could produce life-threatening fluid loss and infection?

1. Stomach ulcers

2. Full-thickness skin burn

3. Severe muscle tear

4. Displaced bone fracture

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8. Where are sebaceous glands found? In the___

1. digestive system

2. hypodermis

3. dermis

4. stratum corneum

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9. Which of the following statements is correct?

1. dendrites are produced by dendrocytes

2. glycolipids are produced by lipocytes

3. keratin is produced by keratinocytes

4. melanin is produced by merkel cells

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10. Which of the following statements is INCORRECT?

1. Sudoriferous glands secrete sebum.

2. Sebaceous glands secrete oil.

3. Apocrine glands secrete sweat.

4. Ceruminous glands secrete cerumen

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11. Which layer of the integument contains rapidly dividing keratinocytes?

1. stratum lucidum

2. papillary dermal layer

3. stratum germinativum

4. reticular dermal layer

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12. Which layer of the skin is the most superficial?

1. Epidermis

2. Dermis

3. Papillary dermal layer

4. Stratum germinativum

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13. Choose the incorrect statement below

1. Keratinocytes produce keratin

2. Merkel cells are associated with a sensory nerve ending.

3. Melanocytes produce melanin

4. Dendrocytes produce dendrocidin.

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14. Full-thickness burns to more than 20 % of the skin surface is life-threatening because of the___

1. body’s inability to thermoregulate.

2. loss of the ability to produce vitamin D.

3. buildup of urea and uric acid which would otherwise have been excreted by the skin.

4. body’s inability to prevent water loss

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15. When a pharmaceutical is administered hypodermically, it is____

1. Wiped onto the skin

2. Applied via a patch that adheres to the skin

3. Injected into the dermis

4. Injected into subcutaneous fat

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16. Which is a notable feature of the stratum corneum layer of the integument? It___

1. is where melanocytes and keratinocytes are rapidly dividing.

2. is richly supplied with blood capillaries.

3. consists of keratin filled cells with glycolipid in between cells.

4. has protruding epidermal ridges that push the overlying epidermis into “fingerprints”.

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17. What is the name given to the most superficial layer of the integument?

1. stratum corneum

2. papillary dermal layer

3. stratum lucidum

4. superficial fascia

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18. Where must the ink in a skin tattoo be placed for the tattoo to be permanent?

1. In the hypodermis

2. In the dermis

3. In the epidermis

4. Under the stratum corneum

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19. When a medicine is delivered via a patch attached to the skin, it is said to be delivered______

1. transdermally

2. subcutaneously

3. topically

4. intramuscularly

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20. What do sudoriferous glands do?

1. Secrete sebum into a hair follicle

2. Secrete sweat through a duct to the skin

3. Secrete sweat through a duct to the skin or into a hair follicle

4. Secrete cerumen through a duct to the skin or into a hair follicle

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21. What distinguishes the stratum corneum of the epidermis from the other layers?

1. The stratum corneum is not vascularised; the other layers are.

2. The stratum corneum produces new cells, while the other layers do not.

3. The stratum corneum is only present in the epidermis of the hands and feet.

4. The cells of this stratum do not possess a nucleus; the cells of the other layers do

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22. Which one of the following is NOT a type of sweat gland?

1. Eccrine gland

2. Merocrine gland

3. Endocrine gland

4. Apocrine gland

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23. To what in the skin does the term “nociceptors” refer to?

1. sensors that detect movement of hair follicles

2. any lamellated sensory corpuscle

3. the sensory receptor that is associated with the Merkel cells of the epidermis

4. free nerve endings with large receptive fields that detect pain

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24. Which one of the following cell types is a macrophage?

1. Keratinocytes

2. Melanocytes

3. Dendrocytes

4. Merkel cells

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25. What is the purpose is vitamin D (calcitriol)?

1. Required for several stages of haemostasis

2. Required for uptake of calcium from the gut

3. Required for erythropoiesis

4. Required for uptake of intrinsic factor

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Integumentary System Quiz

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