What is the greatest risk factor for skin cancer?
A. Exposure to UV light rays
B. Advanced age
C. Being a female
D. Low skin hydration levels
E. Using excessive sun block
A
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The process of reverberation involves
A) several neuronal pools processing information at one time. B) extension of collateral axons back toward the source of an impulse and further stimulation of the presynaptic neurons. C) a negative feedback loop through nerve circuits. D) a single repeat of a stimulus prior to extinction. E) All of the answers are correct.
Active hyperemia refers to the normal state of partial contraction in arteriolar smooth muscle
Indicate whether the statement is true or false
Which type of gland does not have ducts?
A. Exocrine B. Merocrine C. Apocrine D. Holocrine E. Endocrine
Cardiac muscle cells and skeletal muscle cells differ in a few ways. Which of the following is not one of them?
A) Cardiac muscle cells are smaller in size. B) Cardiac muscle cells have a single, centered nucleus. C) Cardiac muscle cells branch. D) Skeletal muscle cells lack intercalated discs. E) Cardiac muscle cells lack transverse tubules.