________ form myelin sheaths in the peripheral nervous system, whereas ________ form myelin sheaths in the central nervous system

A) Astrocytes; oligodendrocytes
B) Schwann cells; oligodendrocytes
C) Oligodendrocytes; Schwann cells
D) Astrocytes; ependymal cells


B

Anatomy & Physiology

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A patient has been receiving immunosuppressive doses of glucocorticoids for 6 months. At the end of this therapy, the dose of the hormone must be slowly tapered down over a period of weeks. This is due to:

A. adrenal atrophy B. pituitary hypertrophy C. upregulation of glucocorticoid receptors D. elevated ACTH levels E. increased circulating CBG levels

Anatomy & Physiology