Physiological Structure and Life Process
Class 10: Science
Blood Circulation System, Structure of Blood, Function of Blood, Blood Group, Blood Vessels, Structure of Heart, Blood Circulation, Heart Rate and Pulse Rate, Heart Attack, High Blood Pressure, Uric Acid
Blood Circulation System
The system formed with the heart, blood, and the network of arteries, veins, and capillaries is called the Blood Circulation System. The heart is the central and the most important organ in the system. The heart circulates the blood through the network of arteries, veins, and capillaries in the human body.
Blood Vessels
The blood vessels are the path to the blood, through which blood flows. There are three types of blood vessels Artery, Vein, and Capillaries.
1. Artery
- Aorta: This is the largest artery in the human body. It carries pure blood from the heart's left ventricle to the body's different parts.
- Pulmonary Artery: They carry impure blood (Deoxygenated blood) from the heart's right ventricle to the lungs for purification.
2. Vein
- Venacave: This is the largest vein in the human body. It carries impure blood (with Carbon dioxide) from different parts of the body to the right auricle.
- Pulmonary Veins: They carry pure blood (Oxygenated blood) from the lung to the left auricle of the heart.
3. Capillaries
- Capillaries are very fine networks of blood vessels. They connect the arteries to the veins and capillaries provide a definite path for the flow of blood.
Blood Circulation
The process of the body which helps in the transportation of nutrients, oxygen, and hormones to different parts of the body and collects their waste products like carbon dioxide is called blood circulation. There are two types of blood circulation in the human body Systemic blood circulation and Pulmonary blood circulation.
1. Systemic Blood Circulation
The circulation of blood between the heart and different parts of the body except the lungs is called systemic blood circulation. Which means blood circulation from the Left ventricle to the Right auricle through the different body parts.
2. Pulmonary Blood Circulation
The circulation of blood between the heart and lungs is called pulmonary blood circulation. Which means blood circulation from the right ventricle to the left auricle through the lung.
Heart Rate and Pulse Rate
The rhythmic contraction and relaxation of the heart is called heartbeat. Pulse rate, also known as heart rate, is the number of times a heart beats in a minute.
Human Heart External
Human Heart Internal
