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  • The outline of principal events of urination is given below in a random manner. (i) Stretch receptors on the wall of urinary bladder send signals to the CNS. (ii) The bladder fi

The outline of principal events of urination is given below in a random manner.

(i) Stretch receptors on the wall of urinary bladder send signals to the CNS.

(ii) The bladder fills with urine and becomes distended.

(iii) Micturition

(iv) CNS passes on motor messages to initiate the contraction of smooth muscles of the bladder and simultaneous relaxation of urethral sphincter.

The correct sequence of the events is

 

Option: 1

(i) \rightarrow (ii) \rightarrow (iii) \rightarrow (iv)


Option: 2

(iv) \rightarrow (iii) \rightarrow (ii) \rightarrow (i)


Option: 3

(ii) \rightarrow (i) \rightarrow (iv) \rightarrow (iii)


Option: 4

(iii) \rightarrow (ii) \rightarrow (i) \rightarrow (iv)


Answers (1)

best_answer

As we have learnt,

 

Steps involved in micturition -

Urine formed by the nephrons is ultimately carried to the urinary bladder where it is stored till a voluntary signal is given by the central nervous system (CNS).

-

 

 

 

Posted by

Gautam harsolia

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