Which type of tissue has the greatest capacity to regenerate?
Muscle
Nervous
Epithelial
All of the above tissue have about equal ability to regenerate.
The Correct Answer is C
A. Muscle: Muscle tissue (especially cardiac and skeletal) has a very limited capacity to regenerate and often heals via scarring (fibrosis).
B. Nervous: Nervous tissue has the least regenerative capacity, particularly in the Central Nervous System.
C. Epithelial: Epithelial tissues (like skin and the lining of the gut) constantly undergo cell division and have a high capacity for repair and regeneration.
D. All of the above: Incorrect, as the capacity varies wildly between these tissue types.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. The cell membrane is permeable to Na+ but impermeable to K+ ions: This is the opposite of reality; the resting membrane is much more permeable to K+.
B. The outer surface of the plasma membrane has a negative charge: At rest, the outside of the membrane is positively charged relative to the inside.
C. The highest concentration of K is extracellular: K+ is primarily an intracellular ion, while Na+ is primarily extracellular.
D. The sodium pump has moved Na to the outside of the plasma membrane: The Na+/K+ pump actively maintains the resting potential by pumping sodium out of the cell.
Correct Answer is C
Explanation
A. Korotkoff sounds: These are the sounds heard through a stethoscope when measuring blood pressure manually.
B. minute volume: This is the volume of blood the heart pumps in one minute.
C. pulse pressure: This is the correct term for the numerical difference between the systolic and diastolic readings (e.g., 120 - 80 = 40 mmHg).
D. pressure gradient: This describes the difference in pressure between two distinct points in the circulatory system that allows blood to flow.
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