Before B cells secrete antibodies, they differentiate into ________.

A. stem cells
B. macrophages
C. plasma cells
D. antigen-presenting cells
E. T cells


Answer: C

Anatomy & Physiology

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The stretch receptors in the central portion of the muscle spindle can be activated by

a. passive stretch of the whole muscle, including stretch of the muscle spindle b. contraction of the end portions of the muscle spindle c. gamma motor neuron stimulation of the muscle spindle d. all of the above e. none of the above

Anatomy & Physiology

In mosquitoes, natriuretic pepetide selectively decreases Na+ secretion

Indicate whether the statement is true or false

Anatomy & Physiology

In addition to testosterone and estrogen, reproductive organs (testes and ovaries) also produce the hormone ________, which decreases the production of FSH.

A. insulin B. thyroxine C. inhibin D. relaxin E. parathyroid hormone

Anatomy & Physiology

 In the figure showing an anterior view of the veins, number 4 indicates the

A. common iliac vein. B. renal vein. C. brachiocephalic vein. D. internal jugular vein. E. cephalic vein.

Anatomy & Physiology