answersLogoWhite

0

FROM THE LUNGS

Ans 2:

Veins have valves that cause one-way flow of blood. Muscular contraction squeezes the veins and causes the veins to pump blood back towards the heart.

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

What are the two types of circulation of blood in the body?

Pulmonary and systemic


Why is it important for the fetal heart to have both the ductus arteriosus and the foramen ovale but not good for the adult heart to have these?

The ductus arteriosus and foramen ovale are important for systemic circulation. This is the type of circulation maintained by fetal pigs but the adult heart requires pulmonary and systemic circulation.


What is the flow of blood to the tissues of the heart?

coronary circulation


What are the three major branches of the systemic circulation?

The systemic circulation includes three parts. The coronary circulation, the hepaticportal circulation and the renal circulation


Why is it important for the fetal heart to have both the ductus arteriosus and the foramen ovale but not good for the adult heart to have these feature?

The ductus arteriosus and foramen ovale are important for systemic circulation. This is the type of circulation maintained by fetal pigs but the adult heart requires pulmonary and systemic circulation.


Which of the two paths of blood circulation is shorter?

The pulmonary circulation (from heart to lungs and back) is shorter than the systemic circulation (from heart to body tissues and back).


The arteries of the pulmonary circulation differ from those of the systemic circulation in that they carry?

The arteries of the pulmonary circulation differ from those of the systemic circulation in that they carry?


What is the difference of pulmonary circulationcoronary circulation and systemic circulation?

Coronary circulation is a sub-set of systemic circulation, it just supplies the heart. Pulmonary circulation is mecanically the same as systemic, but the blood enters as deoxigenated, and the pressures are much lower.


Is the pulmonary artery a part of systemic circulation?

The blood circulation in the Lungs, called the pulmonary circulation, is COMPLETELY a part of the general, systemic circulation of Blood.


How does systemic systemic system works?

systemic circulation - BETWEEN the heart and lungs


The circulatory system is divided into two main parts.?

the systemic and pulmonary circulation


What are the two types of circulation in the body?

Pulmonary - carries oxygen-depleted blood away from the heart, to the lungs, and returns oxygenated blood back to the heart. Systemic - carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart.