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 B
Explanation
A. To increase the effectiveness of drugs and hormones in the blood: Tubular secretion helps in removing drugs and hormones, not increasing their effectiveness.
B. To remove excess quantities of substances from the blood: Tubular secretion is responsible for removing excess ions, waste products, and drugs from the blood and excreting them into the urine.
C. To filter out pathogens from the blood: Filtration primarily occurs at the glomerulus, not tubular secretion, and it does not focus on pathogens.
D. To remove 99% of the water from the blood: This is not the purpose of tubular secretion; water reabsorption primarily happens in the nephron’s other parts.
Correct Answer is A
Explanation
A. Cecum: The cecum is the first part of the large intestine, where fluids and salts are absorbed after digestion in the small intestine.
B. Ascending colon: The ascending colon continues the process of absorbing water and salts but starts after the cecum.
C. Rectum: The rectum stores feces and plays little role in fluid and salt absorption.
D. Descending colon: While the descending colon absorbs water, much of the absorption occurs earlier in the large intestine, primarily in the cecum.
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.