Question

Solve The Attachment__!!

ICSE board - Class 10 question__!!​

Answer 1

Answer:

Ventricular systole

Ventricular muscles contract

pulmonary artery,aorta,chordae tendinae, semilunar valves

Answer 2

Answer 7 -

(a)

(i) Ventricular systole

(ii) Both ventricles are contracting this phase, because both bicuspid and tricuspid valves are closed in order to prevent the backflow of the blood into atria and the semilunar valves are open.

(iii) 1- Pulmonary artery

2- Aorta

3- Aortic Bicuspid valve

4- Semilunar valve

(iv) '2' carries oxygenated blood.

(v) Part 5 is pulmonary semilunar valve through which blood passes into pulmonary artery and prevents the backflow of the blood into the right ventricle.

(vi) Pericardium.

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