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 D
Explanation
A. Eosinophil: Eosinophils are involved in allergic reactions and parasitic infections, but they are not responsible for B and T cell functions.
B. Basophil: Basophils are involved in inflammatory responses, particularly releasing histamine, but do not include B or T cells.
C. Monocyte: Monocytes are large white blood cells that develop into macrophages but do not include B or T cells.
D. Lymphocyte: Lymphocytes are a subtype of white blood cells that include B cells (which produce antibodies) and T cells (which are involved in cell-mediated immunity), making this the correct answer.
Correct Answer is A
Explanation
A. Enters the superior or inferior vena cava; exits the pulmonary arteries: Deoxygenated blood from the body enters the heart through the superior or inferior vena cava and flows into the right atrium. It then passes into the right ventricle and exits through the pulmonary arteries to the lungs for oxygenation.
B. Enters the aorta; exits the pulmonary veins: The aorta and pulmonary veins both handle oxygenated blood, not deoxygenated blood, making this incorrect.
C. Enters the superior or inferior vena cava; exits the coronary arteries: The coronary arteries supply the heart muscle itself with oxygenated blood, so this is incorrect for deoxygenated blood.
D. Enters the pulmonary veins; exits the aorta: Both the pulmonary veins and the aorta are part of the oxygenated blood circuit, making this incorrect for deoxygenated blood flow.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.