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What prevents urine leaving the bladder?
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What prevents sperm and urine from mixing?
The internal sphincter muscle at the base of the bladder prevents urine from mixing with sperm during ejaculation. This muscle contracts to close off the bladder's exit, ensuring that only semen passes through the urethra. Additionally, the flow of semen from the ejaculatory ducts during ejaculation helps to clear any urine that may be present in the urethra beforehand.
What is the muscle bag that holds urine?
The bladder.
What muscle present at the tip of the urinary bladder that controls the urine?
bladder sphincter
What excretes urine?
Smooth muscle surrounding the bladder pushes urine out of the urethra.
What Muscle that opens to allow urine to be removed from the bladder?
sphincter
Contains the detrussor muscle for urine release?
The Bladder Wall
What structures rely on muscle action for the movemnvt of urine?
The movement of urine primarily relies on the action of smooth muscle in the walls of the ureters and the bladder. The ureters use peristaltic contractions to transport urine from the kidneys to the bladder. Once the bladder fills, its smooth muscle, known as the detrusor muscle, contracts to facilitate urination. Additionally, the external urethral sphincter, composed of skeletal muscle, allows for voluntary control over the release of urine.
Which muscle compresses the urinary bladder for micturition?
The muscle that compresses the urinary bladder during micturition is the detrusor muscle. This smooth muscle layer surrounds the bladder and contracts to expel urine from the bladder into the urethra. The contraction of the detrusor muscle is primarily controlled by the autonomic nervous system, specifically the parasympathetic division.
What triangular shaped muscle area within the bladder contracts during urination?
The detrusor muscle is the main muscle within the bladder that contracts during urination to help expel urine. It is a smooth muscle that forms a triangular shape at the base of the bladder.
What closes like a rubber band around the opening of the bladder?
The sphincter muscle closes like a rubber band around the opening of the bladder to prevent urine from leaking out. This muscle is controlled by nerves and can be consciously relaxed or contracted to release or hold urine in the bladder.
Where would you find the detrusor muscle?
Detrusor muscle is found in the urinary bladder.
