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Byju's Answer
Standard X
Biology
Open and Closed Circulatory System
Foramen ovale...
Question
Foramen ovale:
A
Connects the two atria in the foetal heart.
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B
Connects pulmonary trunk and aorta in foetus.
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C
ls a condition in which heart valves do not completely close.
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D
Is a shallow depression in the inter-ventricular septum.
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Solution
The correct option is
A
Connects the two atria in the foetal heart.
Foramen ovale is a hole between the left and right atria (upper chambers) of the heart. It connects two atria in the foetal heart.
So the correct answer will be option A.
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Q.
Choose the correct statements :
I. The heart is a hollow organ present in the thoracic cavity
II. The pulmonary veins are guarded by valves which prevent the backflow of blood.
III. The walls of the left ventricle are about three times thicker than the right ventricle.
IV. Pulmonary arteries carry deoxygenated blood to the lungs
V. The foetal heart has an opening between two atria
Q.
The foramen ovale in the fetal heart is located in the
Q.
The Pulmonary trunk and systemic aorta of Foetus, connected by?
Q.
Match valves to parts of the heart it connects. (RA - Right Atria; RV - Right Ventricle; LV - Left ventricle)
Q.
Read the following statements and select the correct option.
A. Damage to chordae tendinae of semilunar valves in aorta causes back flow of blood in left ventricle.
B. Closure of atrio-ventricular valves during ventricular systole generates first heart sound.
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