Please enable JavaScript.
Coggle requires JavaScript to display documents.
The cardiovascular system - Coggle Diagram
The cardiovascular system
The heart is divided into two halves
Right-hand side
is responsible for pumping deoxygenated blood to the lungs.
Left-hand side
pumps oxygenated blood around the body.
Each side of the heart consists of an atrium and a ventricle which are two connected chambers.
Atria (atrium)
are where the blood collects when it enters the heart.
Ventricles
pump the blood out of the heart to the lungs or around the body.
Septum
separates the right-hand and left-hand side of the heart.
Tricuspid valve
s located between the right atrium and right ventricle and opens due to a build-up of pressure in the right atrium.
Bicuspid valve
is located between the left atrium and left ventricle and likewise opens due to a build-up of pressure, this time in the left atrium.
Semilunar valves
It stops the back flow of blood into the heart.
There is a semilunar valve where the aorta leaves the left ventricle and another where the pulmonary artery leaves the right ventricle.
Blood vessels
There are four main blood vessels that take blood into and out of the heart.
Aorta
It is the largest artery in the body.
It carries oxygenated blood away from the left ventricle to the body.
Vena cava
It is the largest vein in the body.
It carries deoxygenated blood from the body back to the heart.
Pulmonary artery
It carries deoxygenated blood away from the right ventricle to the lungs.
Pulmonary vein
Returns oxygenated blood from the lungs to the heart.