Which of the following structures is the richest in lipid content?
A. Dura mater
B. Gray matter
C. Arachnoid mater
D. Pia mater
E. White matter
Answer: E
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Dogs were bred from wolves
Indicate whether the statement is true or false
How would the absolute refractory period be affected if voltage-regulated sodium channels failed to inactivate?
A) It would last indefinitely. B) It would be much briefer. C) It would be basically unaffected.
Which of the following is true regarding unmyelinated nerve fibers in the PNS?
A. Satellite cells cluster around each axon to form a pseudo-myelin sheath. B. A Schwann cells wraps its plasma membrane around each individual fiber as it does with myelinated fibers. C. An oligodendrocyte cells wraps its plasma membrane around each fiber as it does with myelinated fibers. D. A Schwann cell folds its plasma membrane around several fibers .
Cortisol is secreted by the adrenal gland.
Answer the following statement true (T) or false (F)