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During micturition, the muscles of urinary bladder and urethral sphincters will
- a)contract and relax respectively.
- b)none of these
- c)show fatigue
- d)relaxand contract respectively.
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
During micturition, the muscles of urinary bladder and urethral sphinc...
Micturition is the process of voiding urine from the body. During this process, the muscles of the urinary bladder and urethral sphincters play a crucial role in controlling the flow of urine. The correct answer to the given question is option 'A', i.e., the muscles of the urinary bladder will contract, and the urethral sphincters will relax.
Explanation:
The process of micturition involves the following steps:
1. Filling of the urinary bladder: The urinary bladder is a muscular sac that stores urine until it is eliminated from the body. As the bladder fills with urine, its walls stretch, and the pressure inside the bladder increases.
2. Sensory input to the spinal cord: The stretch receptors in the bladder walls send signals to the spinal cord, indicating that the bladder is full.
3. Activation of the micturition reflex: The spinal cord processes the sensory input and generates a reflex response that activates the muscles of the bladder and urethral sphincters.
4. Contraction of the bladder muscles: The muscles of the bladder wall contract, forcing urine out of the bladder and into the urethra.
5. Relaxation of the urethral sphincters: The urethral sphincters, which are circular muscles that control the flow of urine through the urethra, relax, allowing urine to pass out of the body.
Therefore, during micturition, the muscles of the urinary bladder will contract, and the urethral sphincters will relax to allow the flow of urine out of the body.
Explanation:
The process of micturition involves the following steps:
1. Filling of the urinary bladder: The urinary bladder is a muscular sac that stores urine until it is eliminated from the body. As the bladder fills with urine, its walls stretch, and the pressure inside the bladder increases.
2. Sensory input to the spinal cord: The stretch receptors in the bladder walls send signals to the spinal cord, indicating that the bladder is full.
3. Activation of the micturition reflex: The spinal cord processes the sensory input and generates a reflex response that activates the muscles of the bladder and urethral sphincters.
4. Contraction of the bladder muscles: The muscles of the bladder wall contract, forcing urine out of the bladder and into the urethra.
5. Relaxation of the urethral sphincters: The urethral sphincters, which are circular muscles that control the flow of urine through the urethra, relax, allowing urine to pass out of the body.
Therefore, during micturition, the muscles of the urinary bladder will contract, and the urethral sphincters will relax to allow the flow of urine out of the body.
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Community Answer
During micturition, the muscles of urinary bladder and urethral sphinc...
Muscles of urinary bladder contract and muscles of
urethral sphincters relax.
its a ncert line so option 1st is correct
urethral sphincters relax.
its a ncert line so option 1st is correct
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During micturition, the muscles of urinary bladder and urethral sphincters willa)contract and relax respectively.b)none of thesec)show fatigued)relaxand contract respectively.Correct answer is option 'A'. Can you explain this answer?
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