Intrinsic control:
usually involves the endocrine or nervous system.
operates at the cellular level.
is sometimes called autoregulation.
operates at the system or organism level.
The Correct Answer is C
A. usually involves the endocrine or nervous system: This describes extrinsic control, where signals come from outside the specific organ.
B. operates at the cellular level: While it involves cells, intrinsic control is specifically defined by an organ or tissue regulating itself.
C. is sometimes called autoregulation: Intrinsic control refers to "built-in" mechanisms within an organ that allow it to adjust its function without outside help (e.g., blood flow regulation within the heart).
D. operates at the system or organism level: This describes extrinsic or systemic regulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"B"}
Explanation
A. Spectrin: As noted earlier, this is a protein that helps maintain the shape of red blood cells.
B. Hematocrit: A hematocrit test measures the "packed cell volume" to see what percentage of whole blood is made up of red blood cells.
C. Hematopoiesis: This is the physiological process of blood cell formation, not a measurement.
D. Hemocytometer: This is a specialized slide used to count individual cells under a microscope, but it does not measure the volume percentage directly like a centrifuge/hematocrit.
Correct Answer is C
Explanation
A. Hepatic artery: This carries oxygenated blood to the liver from the heart.
B. Hepatic vein: This carries deoxygenated blood away from the liver toward the heart.
C. Portal vein: Also called the hepatic portal vein, this unique vessel collects nutrient-rich blood from the digestive organs and delivers it directly to the liver for processing.
D. Renal artery: This carries blood to the kidneys.
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