What is true about the micturition reflex?
Parasympathetic stimulation causes urine to be expelled from the bladder.
The micturition process begins as the kidneys fill with urine and activate stretch receptors.
Distension of the bladder inhibits urine release.
The micturition reflex is under conscious control only.
The Correct Answer is A
A. Parasympathetic stimulation causes urine to be expelled from the bladder: The micturition reflex involves parasympathetic stimulation that causes the detrusor muscle of the bladder to contract, leading to urine expulsion.
B. The micturition process begins as the kidneys fill with urine and activate stretch receptors: Stretch receptors are located in the bladder, not the kidneys.
C. Distension of the bladder inhibits urine release: Distension activates stretch receptors, initiating the micturition reflex, not inhibiting it.
D. The micturition reflex is under conscious control only: While the brain can exert voluntary control over urination, the reflex itself is involuntary and controlled by the autonomic nervous system.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Endocardium: The endocardium is the innermost layer of the heart wall, lining the chambers and valves, and is not in contact with pericardial fluid.
B. Fibrous pericardium: This is the outermost layer of the pericardium but is not part of the heart wall. It provides protection and support but does not come into direct contact with pericardial fluid.
C. Epicardium: The epicardium is the outer layer of the heart wall and is in direct contact with pericardial fluid, which is found between the epicardium and the pericardium.
D. Myocardium: The myocardium is the middle muscular layer responsible for heart contractions and is not in contact with pericardial fluid.
Correct Answer is D
Explanation
Trabeculae: These are thin connective tissue strands that extend from the capsule of the lymph node into the interior. They help to divide the lymph node into distinct compartments or regions, which include the cortex (outer area) and medulla (inner area). This compartmentalization is important for the organization and function of the lymph node, allowing it to efficiently filter lymph and facilitate the immune response.
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