Podcast
Questions and Answers
Which autonomic nerve supply is responsible for contraction of the detrusor muscle and emptying of the bladder?
Which autonomic nerve supply is responsible for contraction of the detrusor muscle and emptying of the bladder?
- Sympathetic innervation from T11-L2
- Parasympathetic innervation from S2, S3, S4 (correct)
- Sympathetic innervation from S2, S3, S4
- Somatic motor innervation from the pudendal nerve
Which autonomic nerve supply is involved in preventing sperm reflux during ejaculation?
Which autonomic nerve supply is involved in preventing sperm reflux during ejaculation?
- Somatic motor innervation from the pudendal nerve
- Sympathetic innervation from S2, S3, S4
- Sympathetic innervation from T11-L2 (correct)
- Parasympathetic innervation from S2, S3, S4
Which nerve supplies the external sphincter of the bladder, making it voluntary?
Which nerve supplies the external sphincter of the bladder, making it voluntary?
- Dorsal column nerve
- Parasympathetic nerve
- Sympathetic nerve
- Pudendal nerve (correct)
Where does the sensation of bladder distension originate in the spinal cord?
Where does the sensation of bladder distension originate in the spinal cord?
Which nerve is responsible for urethral sensations?
Which nerve is responsible for urethral sensations?
What triggers the micturition reflex?
What triggers the micturition reflex?
Which nerve is responsible for transmitting afferents from the stretch receptors in the detrusor muscle and urethra?
Which nerve is responsible for transmitting afferents from the stretch receptors in the detrusor muscle and urethra?
Which segment of the spinal cord do the afferents from the stretch receptors enter to reach the sacral micturition center?
Which segment of the spinal cord do the afferents from the stretch receptors enter to reach the sacral micturition center?
What is the function of efferents from the sacral detrusor nucleus?
What is the function of efferents from the sacral detrusor nucleus?
What happens once the micturition reflex becomes powerful enough?
What happens once the micturition reflex becomes powerful enough?
Where are the influence of higher centers mainly located in relation to micturition?
Where are the influence of higher centers mainly located in relation to micturition?
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