Define packed cell volume
What will be an ideal response?
A rapid test that provides the percent of the blood composed of red blood cells.
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Lamellated corpuscles (Pacinian corpuscles) are
A) tactile receptors. B) baroreceptors. C) nociceptors. D) thermoreceptors. E) proprioceptors.
Sympathetic postganglionic fibers are longer than parasympathetic postganglionic fibers
Indicate whether the statement is true or false
Which of the following would be an example of chemotaxis?
A. A white blood cell can move into and out of blood vessels. B. Platelets are attracted to the rough surface of damaged blood vessels. C. Red blood cells move due to pressure gradients generated by the heart. D. A white blood cell moves toward an injury site due to the release of certain chemicals by injured cells.
A virus differs from other pathogens in that it is
A. not capable of reproduction outside a living cell. B. larger. C. more dangerous. D. multicellular.