PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Veins
|
|
|
Arteries
|
|
|
Cappillaries
|
|
|
None of the above
|
Detailed explanation-1: -Veins. Veins carry blood toward the heart. After blood passes through the capillaries, it enters the smallest veins, called venules. From the venules, it flows into progressively larger and larger veins until it reaches the heart.
Detailed explanation-2: -Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart.
Detailed explanation-3: -Oxygenated blood from the lungs is transported to the left side of the heart into the aorta, then to arteries, arterioles, and finally capillaries where the exchange of nutrients occurs. Loading and unloading of oxygen and nutrients occur mostly in the capillaries.