Draw a diagram of the front view of human heart and label any six parts (including at least two) that are concerned with arterial blood supply to the heart muscles.
Draw a diagram of the front view of human heart and label any six parts (including at least two) that are concerned with arterial blood supply to the heart muscles.
Coronary circulation:
- The circulation involving the movement of oxygenated blood towards the heart muscle is called coronary circulation.
- The right and the left coronary arteries depicted in the diagram are responsible for supplying the oxygenated blood to the cardiac muscles.
- This is necessary for the normal functioning of the muscles.
The superior vena cava receives blood from the chest, upper limbs, head, and neck while the inferior vena cava receives blood from the lower limbs, trunk, and viscera.
Through the tricuspid valve, blood exits the right atrium and passed into the right ventricle.
Through the pulmonary valve, the blood exits the right ventricle progressing to the pulmonary artery.
After this, the pulmonary artery divides into the left and right pulmonary arteries which go to the corresponding lungs where gaseous exchange takes place, where carbon dioxide is exchanged for oxygen, and vice versa.
Blood now comes back from the lungs through the pulmonary veins to enter the left atrium.
Blood is then pumped into the left ventricle through the bicuspid valve. Then the oxygenated blood exits the left ventricle through the aortic semilunar valve into the aortic arch.
Aorta distributes oxygenated blood throughout the body.
Coronary circulation:
- The circulation involving the movement of oxygenated blood towards the heart muscle is called coronary circulation.
- The right and the left coronary arteries depicted in the diagram are responsible for supplying the oxygenated blood to the cardiac muscles.
- This is necessary for the normal functioning of the muscles.
The superior vena cava receives blood from the chest, upper limbs, head, and neck while the inferior vena cava receives blood from the lower limbs, trunk, and viscera.
Through the tricuspid valve, blood exits the right atrium and passed into the right ventricle.
Through the pulmonary valve, the blood exits the right ventricle progressing to the pulmonary artery.
After this, the pulmonary artery divides into the left and right pulmonary arteries which go to the corresponding lungs where gaseous exchange takes place, where carbon dioxide is exchanged for oxygen, and vice versa.
Blood now comes back from the lungs through the pulmonary veins to enter the left atrium.
Blood is then pumped into the left ventricle through the bicuspid valve. Then the oxygenated blood exits the left ventricle through the aortic semilunar valve into the aortic arch.
Aorta distributes oxygenated blood throughout the body.
