What is sytstemic circulation?

the path of blood as it moves from the head throughout the body and back to the head
the path of blood between pharynx and trachea
the path of blood as it moves from the heart throughout the body and back to the heart
the path of bloodbetween the heart and lungs

The correct answer is: The path of blood as it moves from the heart throughout the body and back to the heart.

The correct answer is: the path of blood as it moves from the heart throughout the body and back to the heart.

The correct answer is: the path of blood as it moves from the heart throughout the body and back to the heart.

To understand what the systemic circulation is, it helps to have a basic understanding of the circulatory system. The circulatory system is responsible for transporting blood, nutrients, and oxygen throughout the body while simultaneously removing waste products.

The heart plays a vital role in this process. It pumps oxygen-rich blood from the left side of the heart into the main artery, called the aorta. From the aorta, the blood is distributed to all the tissues and organs in the body through a network of blood vessels, including arteries, arterioles, and capillaries.

In the capillaries, the exchange of oxygen, nutrients, and waste products occurs. Oxygen and nutrients diffuse out of the capillaries and into the surrounding tissues, while waste products, such as carbon dioxide, diffuse from the tissues back into the capillaries.

After the exchange in the capillaries, the deoxygenated blood, now filled with waste products, is collected and returned to the heart through a system of veins. This venous blood is pumped back into the right side of the heart, and the cycle starts again.

So, systemic circulation refers to the pathway that the blood takes as it is pumped from the heart, delivered to the body's tissues and organs, and then returned back to the heart. It is an essential part of the overall circulatory system.