Integument
One of the following statements about the stratum corneum is correct. Which one?
Cells in this layer undergo cell division to replace the skin.
It consists of dead cells.
It contains collagen, elastin and reticular fibres.
The layer has sensory receptors known as Merkel discs and Meissner’s and Pacinian corpuscles.
It consists of dead cells.
Stratum corneum is the outermost layer of the epidermis and is subject to physical abrasion. The now flattened, keratinised cells are not living.
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People with full-thickness burns to more than 20% of their body are in a life- threatening situation. This is due to which of the following?A. The body’s inability to thermoregulate
B. The loss of the ability to produce vitamin D
C. The buildup of urea and uric acid which would otherwise have been excreted by the skin
D. The body’s inability to prevent water loss
When a medicine is delivered via a patch attached to the skin, it is said to be delivered:
A. Transdermally
B. Subcutaneously
C. Topically
D. Intramuscularly
Which stratum of the epidermis protects the body against water loss and abrasion?
A. Stratum germinativum
B. Stratum basale
C. Stratum lucidum
D. Stratum corneum
What is another name for sweat glands?
A. Ceruminous glands
B. Sebaceous glands
C. Sudoriferous glands
D. Apocrine glands
The skin begins the production of vitamin D in which of the following situations? When
A. Exposed to ultraviolet radiation.
B. Signalled to by the hormone PTH.
C. Calcium is present.
D. It adds a hydroxyl group to a cholesterol molecule.
Which glands secrete “oil” into a hair follicle?
A. Apocrine
B. Eccrine
C. Ceruminous
D. Sebaceous
Which cell type produces a pigment that affords the skin some protection against ultraviolet radiation?
A. Keratinocytes
B. Melanocytes
C. Dendrocytes
D. Merkel cells
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