The CNS passes on motor message to initi...

The CNS passes on motor message to initiate the ...a... of smooth muscles of the urinary bladder and simultaneous ......b of the urethral sphincter causing the release of the urine

a-contraction, b- relaxtion

a-relaxation, b-contractionÂ

Â a-relaxation, b-relaxation

a-contraction, b-contractionÂ

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Â The CNS passes on motor message to initiate the contraction of smooth muscles of the urinary bladder and simultaneous relaxation of the urethral sphincter causing the release of the urine.Â

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The outline of principal events of urination is given below in random manner. (i). Stretch receptors on the wall of urinary bladder send segnals 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 bladder and simultaneous relaxationf of urethral sphincter. The correct sequence of the event is

During micturition, the urinary bladder …………. and the urethral sphincters ………..

Which part of brain sends valuntary motor signals to smooth muscles of urinary bladder when the bladder get filled with urine?

The opening of urinary bladder is guarded by two urethral sphincter, which one is involuntary in function

The wall of urinary bladder has a thick layer of smooth muscle called

Fill in the blanks with appropriate words : (a) During micturition, the urinary bladder .......and the urethral sphincters ...... . (b) Flame cells and malpighian tubules are found in ...... And......, respectively. (c) Blood enters the glomerulus through .......arteriole and leaves via the.....arteriole. (d) Two counter-current systems are formed in the kidney by the .....and the....... . (e) Sweat serves to eliminate mainly .......and........ .

A2Z-EXCRETORY PRODUCTS AND THEIR ELIMINATION-Section A : Topicwise Questions Topic 5 : Micturition And Role Of Other Organs In Excretion

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