This figure shows an anterior view of the spinal cord and meninges. What structure does number 7 indicate?

A.   Arachnoid
B.   Pia mater
C.   Dura mater
D.   Gray matter
E.   White matter


A

Anatomy & Physiology

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Natural killer cells are derived from ______________

Fill in the blank with the correct word.

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The pineal gland secretes the hormone

a. melatonin. b. melanin. c. melanocyte stimulating hormone. d. estradiol. e. melanopsin.

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The most delicate of the meninges consists of elastic and collagen fibers and is known as the

A. falx cerebri. B. arachnoid mater. C. pia mater. D. dura mater.

Anatomy & Physiology

One group of proteolytic enzymes secreted by natural killer (NK) cells is ________

A) granzymes B) interferons C) cytokines D) selectins E) perforins

Anatomy & Physiology