The Heart Flashcards
What is the heart
A 4 chambered muscular pump
Where is the heart found
Just to the left of the sternum
What is the wall of the heart made from
A special type of muscle called cardiac muscle
How is the cardiac muscles supplied with blood
Via the coronary arteries
What are the hearts two sides
Left and right
In diagrams the heart is shown as a
Mirror image- so the right is labelled on the left and vice versa
What divides the two sides of the heart
The septum
What does the septum prevent
The septum prevents oxygenated and deoxygenated blood from mixing, improving efficiency
Each side of the heart has
2 chambers
What are the upper chamber called
The atrium
Describe the atrium
The atrium are small and have thin walls
What are the lower chamber called
The ventricle
Describe the ventricles
They are large and have thick walls
Describes the left side of the diagram of the heart
Superior vena cava
Aorta
Pulmonary vein
Right atrium
Inferior vena cava
Right ventricle
Describes the right side of the diagram of the heart
Pulmonary artery
Pulmonary vein
Coronary artery
Left ventricle
