Which two strata of the epidermis are most susceptible to cancer?
A. Stratum spinosum and stratum basale
B. Stratum corneum and stratum lucidum
C. Stratum lucidum and stratum granulosum
D. Stratum granulosum and stratum spinosum
E. Stratum basale and stratum corneum
Answer: A
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The ciliary muscle contracts to
A) control the amount of light reaching the retina. B) adjust the shape of the lens for distant vision. C) adjust the shape of the lens for near vision. D) control the production of aqueous humor. E) adjust the shape of the cornea.
Which of the following is normally the greatest source acting against blood flow?
A) vascular resistance B) venous pressure C) viscosity of blood D) vessel length E) turbulence
Airway passages have smooth muscle cells that are unique in that they have two receptor sites on their outer membrane. One receptor site accepts ACh as the neurotransmitter. When excited it causes the smooth muscle to contract. The second site accepts NE and the inhibitory effect is that the ACh dilates the airway.
What will be an ideal response?
Retrograde transport moves toward or away from the body?
What will be an ideal response?