Jill is blind and often uses braille (a system of raised dots) to read her school assignments. What cell in the stratum basale of the epidermis helps her discriminate between the textured dots?

A) melanocyte B) Merkel cell
C) dendritic (Langerhans) cell D) keratinocyte


Answer: B

Anatomy & Physiology

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Which of the following structures is correctly matched with its function?

A) Ascending limb of the loop of Henle: major site of secretion of K+ B) Descending limb of the loop of Henle: major site for transport of solutes C) Proximal tubule: site of secretion of organic anions and cations D) Distal tubule: main site of reabsorption of Ca2+and Mg2+

Anatomy & Physiology

The activity levels of juvenile hormones can be reduced by

A) Allatostatins. B) Allatotropins. C) JH esterase. D) All of the above

Anatomy & Physiology

The pontine respiratory group

A. is a collection of neurons in the pons. B. has connections with the medullary respiratory centers. C. plays a role in switching between inspiration and expiration. D. All of these are correct.

Anatomy & Physiology

Sensory neurons can be classified as either somatic or autonomic.

a. true b. false

Anatomy & Physiology