Question

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Duration: 3:00:00 Time Lef
Question No. 61
Statement-A: Urine formed in kidneys is carried to the urinary bladder, where it is stored till a voluntary signal is given by the centr
nervous system
Statement-B Contraction of smooth muscles of the bladder and simultaneous relaxation of the urethral sphincters causing the
of the
release of urine
(A) Both Statement A and Statement B are false
(B) Only A is true but B is false
(C) Only B is true but A is false
(D) Both Statement A and Statement B are true​

Answer 1

Answer:

d

Explanation:

both the statements are true because urinary bladder consists of an upper and a lower sphincter. upper sphincter is involuntary and under control of ANS. lower sphincter is voluntary and controlled by CNS so statement1 is true. during urination, smooth muscles of bladder tighten and urethral sphincter are relaxed so statement 2 is true