Home
Class 12
BIOLOGY
Typical 'lubb-dupp' sounds heard during ...

Typical 'lubb-dupp' sounds heard during heartbeat are due to

A

closing of semilunar valves

B

blood under pressure through aorta

C

closing of bicuspid-tricuspid valves

D

closure of bicuspid-tricuspid valves followed by semilunar valves

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • BIOTECHNOLOGY : PRINCIPLES AND PROCESSES

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|134 Videos

  • BREATHING AND EXCHANGE OF GASES

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|199 Videos

Similar Questions

Explore conceptually related problems

Dup' sound is produced during closure of

The "lubb" sound (first heart sound) is caused by

Sometimes , a crackling sound is heard while taking off a sweater during winters. Explain.

Two cars are approaching each other on a straight road and moving with a velocity of 60 kmph. If the sound produced in one car is of frequency 500 Hz, what will be the frequency of sound as heard by a person sitting in another car ? When the car has crossed and moving away from each other , what will be the frequency of sound as heard by the same period ? (speed of sound in air is 332 ms^(-1) )

Assertion : Someaclonal variations may be presnt in plants produce from callus. Resons : Somaclonal variations are caused due to recombination during meiosis.

Sound is heard clearly in summer than in winter Why ?