LABORATORY REVIEW
PHYSIOLOGY OF THE CIRCULATORY SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Left
|
|
|
Right
|
|
|
Both sides of the heart carry deoxygenated blood
|
|
|
Neither; blood is always oxygenated when it travels through the heart.
|
Detailed explanation-1: -After oxygenation, the oxygenated blood returns to the left atrium through the pulmonary vein which then further passes on to the left ventricle. Thus the right side of the heart carries deoxygenated blood and the left side of the heart carries oxygenated blood.
Detailed explanation-2: -Blood headed for the right heart has just delivered oxygen and nutrients to the body. Because it has less oxygen, this blood is called deoxygenated (oxygen-poor) blood (shown in blue). The right heart pumps this blood to the lungs where it picks up additional oxygen.
Detailed explanation-3: -The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle. The left ventricle pumps the blood to the aorta which will distribute the oxygenated blood to all parts of the body.
Detailed explanation-4: -The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where the blood picks up oxygen and gets rid of carbon dioxide. The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.