Whole blood for testing in a clinical laboratory is usually collected from
A) the heart.
B) a superficial artery.
C) a superficial vein.
D) a capillary.
E) an arteriole.
Answer: C
You might also like to view...
Skin cancer is most likely to develop from
A. pigmented epithelial cells. B. nonpigmented epithelial cells. C. pigmented melanocytes. D. nonpigmented melanocytes.
The articular capsule of the temporomandibular joint is exceptionally
A. loose. B. tight.
In a cross section of the spinal cord, the peripheral white portion consists of __________ forming nerve tracts, and the central gray portion consists of __________, dendrites, and axons.
A) unmyelinated axons, neuron cell bodies B) myelinated axons, sensory receptors C) myelinated axons, neuron cell bodies D) all of the above
Imagine a patient who loses lots of blood and therefore has less stretch of their aorta with each heartbeat. What reflex will result?
A. Baroreceptors increase firing, the cardioinhibitory center increases firing, and the heart slows significantly to prevent further bleeding. B. Baroreceptors decrease firing, the cardioinhibitory center and vasomotor centers increase firing, the heart slows, and blood is redirected. C. Baroreceptors increase firing, the vasomotor center increases firing, and skin blood vessels will dilate to cause a compensatory increase in flow. D. Baroreceptors decrease firing, the cardioacceleratory center increases firing, and cardiac output will exhibit a compensatory increase.