The ureters are composed of smooth muscle fibers that propel urine to the bladder by what process?
Peristalsis
Mass movement
Segmental contractions
Tetany
The Correct Answer is A
Choice A reason: Peristalsis is the process by which smooth muscle fibers in the walls of the ureters contract rhythmically to propel urine from the kidneys to the bladder. This coordinated movement involves a wave-like series of contractions and relaxations, ensuring that urine is efficiently transported along the ureters, even against gravity. Peristalsis is a crucial mechanism for maintaining the flow of urine and preventing backflow into the kidneys.
Choice B reason: Mass movement refers to strong, coordinated contractions in the colon that move fecal matter toward the rectum. This process is associated with the large intestine and is not involved in the movement of urine through the ureters.
Choice C reason: Segmental contractions are localized contractions in the intestines that help mix and propel intestinal contents. They are not the primary mechanism for moving urine through the ureters.
Choice D reason: Tetany refers to involuntary muscle spasms or contractions, usually caused by low calcium levels or other electrolyte imbalances. It is not a normal physiological process for propelling urine through the ureters.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: The most obvious and common clinical manifestation of kidney stones is severe pain, often described as excruciating and colicky. This pain is typically located in the back or side, just below the ribs, and may radiate to the lower abdomen and groin. The pain occurs as the stone moves through the urinary tract, causing irritation and blockage. This intense pain is often what prompts individuals to seek medical attention and is a hallmark symptom of kidney stones.
Choice B reason: Tachycardia, or an increased heart rate, may occur as a secondary response to the severe pain caused by kidney stones, but it is not the primary clinical manifestation. Tachycardia can be a symptom of many other conditions and is not specific to kidney stones.
Choice C reason: Hypertension, or high blood pressure, is not a direct manifestation of kidney stones. While there may be some association between kidney stone disease and hypertension, the primary symptom of kidney stones is pain, not elevated blood pressure.
Choice D reason: Edema, or swelling, is not a typical clinical manifestation of kidney stones. Edema is more commonly associated with conditions such as heart failure, kidney disease, and certain vascular disorders. Kidney stones primarily cause pain and urinary symptoms rather than generalized swelling.
Correct Answer is B
Explanation
Choice A reason: The overall goal of treatment for both type 1 and type 2 diabetes is to maintain blood glucose levels within a normal range and prevent complications. While the strategies to achieve these goals may differ, the ultimate objectives are similar for both types of diabetes.
Choice B reason: The treatment for type 1 diabetes primarily involves insulin therapy, as the body cannot produce insulin. In contrast, type 2 diabetes treatment often starts with lifestyle changes and oral medications to improve insulin sensitivity and control blood glucose levels. Insulin therapy may be required later in the course of type 2 diabetes if other treatments are insufficient.
Choice C reason: Both types of diabetes are diagnosed using similar criteria, including measuring blood glucose levels through fasting blood glucose tests, oral glucose tolerance tests, and HbA1c levels. The diagnosis process itself is not a major differentiating factor between the two types.
Choice D reason: The potential long-term complications of both type 1 and type 2 diabetes are similar and include cardiovascular disease, neuropathy, nephropathy, retinopathy, and other complications related to prolonged high blood glucose levels. While the risk factors and progression may vary, the types of complications are not significantly different between the two conditions.
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