veins have almost no blood pressure. How, then, is blood returned to the heart from the legs in humans? Please describe two factors/mechanisms
veins have almost no blood pressure. How, then, is blood returned to the heart from the legs in humans? Please describe two factors/mechanisms
Blood vessels are one of the three (*the others being the heart and the blood) components of the cardiovascular system in humans that aid in the transport of blood to/from the heart from/to the rest of the body. The blood vessels are primarily categorized based on their mechanism of blood transport (i.e., whether they conduct blood away from the heart or towards the heart), their structure, and their network across the body. Veins are one of the 4 distinct categories of blood vessels in the human cardiovascular system (other being arteries, capillaries, and sinusoids) that are involved in the transport of deoxygenated blood from the rest of the body toward the heart. The only exception is in the case of pulmonary veins, where the oxygenated blood from the lungs is brought to the heart with the help of 4 pulmonary veins.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
