These are the most abundant leukocytes, constituting 50-70% of all white blood cells
A) neutrophils B) lymphocytes C) basophils D) eosinophils E) monocytes
Answer: A
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Erythrocytes
a. are large cells. b. participate in the clotting of blood. c. defend the body against foreign substances. d. possess binding sites for oxygen and CO2 e. possess all of the organelles found in other cell types.
Merocrine sweat glands are associated with hair follicles in the pubic and anal regions, axilla, areola, and beard
Indicate whether the statement is true or false
Pain receptors differ from other somatic receptors by
A) being stimulated only when pain comes from skeletal muscle. B) adapting very little, if at all. C) adapting much more than other receptors. D) not being able to project impulses back to their origin.
When the bladder of an infant is filled with urine, the
a. stretch receptors in the bladder wall are inhibited b. parasympathetic nerve supplying the bladder is inhibited, allowing the bladder to relax c. motor neuron supplying the external urethral sphincter is stimulated, causing the sphincter to open d. motor neuron supplying the external urethral sphincter is inhibited, allowing the sphincter to open e. parasympathetic nerve supplying the internal urethral sphincter is stimulated, causing the sphincter to close