Question

In: Anatomy and Physiology

What chamber depolarizes during the P wave of the EKG? Right atria and Right ventricle Left...

What chamber depolarizes during the P wave of the EKG?

Right atria and Right ventricle

Left and Right Atria

Left and Right Ventricles

Right atria only

Question 2

Which chamber (s) contract during the P wave

Group of answer choices

Right atria only

Right atria and Right atria

Right atria and ventricle

Right and left ventricles

Question 3

What is the purpose of atria contraction?

To stimulate the ventricles to contract

To open AV valves

To fill the remaining 10% of the ventricles with blood

Question 4

Do any heart sound occur during the P wave?

Yes

No

Question 5

During the QRS wave, the atria repolarizes and ___________

Group of answer choices

Relax

Contract

Expert Solution

Ans:-

1) :- b) left and right atria.

Ans2:- Right atria and left atria.

Ans3:- d) to fill the remaining 10% of the ventrixle with blood .

It is also know as forced ventricular filling.

Note 80 % of the Ventricular filling is passive only

10 -20 is filled by active contraction of atrium.

Ans4:; -- NO

Heart sound is produce when valves close , during p wave mitral and tricuspid valves are opened so no sound produced.

Ans 5 :- relax

Sydney Mullin answered 1 year ago

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