The path of blood flow through the human heart is crucial for understanding its function. Oxygenated blood returns from the lungs, where it picks up oxygen.
This oxygen-rich blood travels via the pulmonary veins.
The pulmonary veins connect directly to the left atrium.
Therefore, the left atrium is the very first chamber of the heart to receive oxygen-rich blood returning from the lungs.
This blood then moves to the left ventricle before being pumped to the rest of the body.
The right side of the heart handles deoxygenated blood returning from the body and pumping it to the lungs.
Based on this circulatory pathway, the correct option is A.
Sponges belong to which one among the following phylum?
A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and 0 negative. The blood group of the three sons is A positive, B positive, and 0 positive. The blood group of the adopted son is
The normal systolic pressure in human beings is: