It enters the arteries.
left ventricle
Venous return (VR) is the flow of blood back to the heart. Arteries takes oxygenated blood away from the heart to the body and veins Cary the blood back to the heart and lungs for disposal of CO2 among other things.
to the heart
when blood enters the heart its a bright cherry red colour when it leaves its a dull red/ brown colour hope this helps :) x
In the pulmonary circulation, deoxygenated blood leaves the right section of the heart through the pulmonary artery, enters the lungs and oxygenated blood comes through the pulmonary veins. The blood then moves to the left atrium of the heart.
It flows through the pulmonary vein toward the heart.
The pulmonary vein enters the left atrium of the heart.
Depleted blood enters and leaves the right side of the heart.
Blood first leaves the heart of a fish and enters the gills for oxygenation. From the gills, oxygenated blood is transported to the rest of the fish's body through arteries.
The left pulmonary artery
As blood leaves the heart it travels through the arteries. The first one will be either the pulmonary artery (for blood leaving the right side of the heart) or the aorta (for blood leaving the left side of the heart).
Right Atrium.
At the right atrium.
The blood leaves the heart through the aorta, the largest artery in the body. From there, it travels to smaller arteries and arterioles, ultimately reaching the capillaries where oxygen and nutrients are exchanged with tissues.
left ventricle
Oxygen-poor blood first enters the heart through the right atrium via the superior and inferior vena cava.
The blood that leaves the frogs heart through the ventricles is almost pure blood. This blood goes to the brain.