Excretion is a continuous process but urine is not passed out continuously because of
Excretion is a continuous process but urine is not passed out continuously because of
The correct option is A Urinary bladder
Excretion is a continuous process but urine
is not passed out continuously because it is stored in the urinary bladder. It
is released due to contraction and relaxation of smooth muscles of urinary
bladder known as detrusor muscles. Contraction and relaxation of urinary
bladder is controlled by the somatic and autonomic nervous system. During the
storage phase the internal urethral sphincter remains tense and the detrusor
muscle relaxed by sympathetic stimulation. The parasympathetic stimulation
causes the detrusor muscle to contract and the internal urethral sphincter to
relax which causes micturition. The urethral sphincter is under voluntary
regulation of pudendal nerve which causes conscious relaxation during
micturition. So the correct answer is “urinary bladder”.
Excretion is a continuous process but urine is not passed out continuously because it is stored in the urinary bladder. It is released due to contraction and relaxation of smooth muscles of urinary bladder known as detrusor muscles. Contraction and relaxation of urinary bladder is controlled by the somatic and autonomic nervous system. During the storage phase the internal urethral sphincter remains tense and the detrusor muscle relaxed by sympathetic stimulation. The parasympathetic stimulation causes the detrusor muscle to contract and the internal urethral sphincter to relax which causes micturition. The urethral sphincter is under voluntary regulation of pudendal nerve which causes conscious relaxation during micturition. So the correct answer is “urinary bladder”.
