plz answer ASAP.........
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Hi,
(i) 1.kidney
2.ureter
3.urinary bladder
4.opening of ureter
5.urethra
(ii) The ureters open obliquely in the urinary bladder by a slit like aperture to prevent back flow of urine.
(iv) Urethra in males serves as a passage for urine and sperms while in females it only serves as a passage for urine.
(V) Nephron
(iii) when enough urine gets accumulated in the baldder to raise the pressure, a spontaneous nervous activity is initiated. This causes the smooth muscles on the bladder wall to contract and the urethral sphincter to relax. Urine flows to the outside. As the ureters enter obliquely through the bladder wall, their openings get shut down to compression by the contracting bladder muscles and backward flow is prevented.
Hope it helps u.
(i) 1.kidney
2.ureter
3.urinary bladder
4.opening of ureter
5.urethra
(ii) The ureters open obliquely in the urinary bladder by a slit like aperture to prevent back flow of urine.
(iv) Urethra in males serves as a passage for urine and sperms while in females it only serves as a passage for urine.
(V) Nephron
(iii) when enough urine gets accumulated in the baldder to raise the pressure, a spontaneous nervous activity is initiated. This causes the smooth muscles on the bladder wall to contract and the urethral sphincter to relax. Urine flows to the outside. As the ureters enter obliquely through the bladder wall, their openings get shut down to compression by the contracting bladder muscles and backward flow is prevented.
Hope it helps u.
Akshat999:
no prob... :)
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