The epidermal layer that is present in the nail bed and the nail matrix is the
A. stratum basale.
B. stratum corneum.
C. stratum lucidum.
D. stratum lunula.
E. stratum spinosum.
A
You might also like to view...
Which of the following does NOT contribute to the longer lasting and more widespread effects observed with sympathetic activation versus parasympathetic activation?
a) Norepinephrine is more slowly removed from synapses than ACh. b) Additional norepinephrine is released from the adrenal gland. c) Greater divergence occurs in sympathetic neural pathways. d) Blood flow to the hypothalamus is decreased when sympathetic activation occurs.
Heat can be lost directly to the external environment by the vasodilation of blood vessels in the ____
a. hypothalamus. b. cerebellum. c. skin. d. cerebral cortex. e. medulla.
This cell mediates the body's cellular immune response.
A. Neutrophil B. B cell C. Macrophage D. T cell
The function of melanin in the skin is to
A. keep the epidermis soft and pliable. B. reduce water loss. C. prevent infections. D. protect against UV light. E. help regulate body temperature.