The heart is an important organ of our body. It is responsible for maintaining the vital functions performed by our body. It is a tiny muscular body organ that pumps blood to all other bodies.

It consists of 4 chambers

1. The right auricle

2. The right ventricle

3. The left auricle

4. The left ventricle

The upper chambers are the auricles and atrium. Ventricles are the lower chambers. The movement of blood through the heart has been explained by online ncert class 7 tuitions similar to the following flow chart. These Flow charts are helpful for students to memorise science concepts.

Body-Right Auricle-Right Ventricle-Pulmonary Artery- Lungs- Pulmonary Vein- Left Auricle-Left Ventricle-To the body

Heart Beat

Heart Beat checks the functionality of your heart. It is produced at regular intervals.

Heartbeat runs special scripts whenever the system is restarted or initialised. Heartbeat was originally designed to run two-node Linux-based clusters. However, it can be extended to support larger configurations.

A system called Heartbeat uses packets to communicate with each other. This is approximately 2 Hz per second. Named after the frequency of packet exchanges, the program is named.

What makes the heart beat?

The myocardium's contractions and relaxations alternately cause the pumping of your heart or your heartbeat. The contractions can be stimulated by electrical impulses coming from the sinoatrial node in the right atrium muscle.

The rhythmic contractions and relaxations in the myocardium cause the heartbeat. These contractions can be stimulated by electrical impulses from the sinoatrial or S-A node, which is located in the muscles of the right atrium.

The S-A node triggers the contraction of the atria, which causes the blood to flow into the ventricles. The atrioventricular controls the contraction of the ventricles.

After contraction, the ventricles relax and the pressure within them drops. The cycle is re-started when blood flows again into the atria. This is cardiac cycling. Diastole is a period of relaxation.

Diastole is the one that is longer than the other phases and allows the heart to rest between contractions. The animal's size affects the heartbeat rate. It averages 25 beats per hour in elephants and about 1,000 in canaries. The rate decreases gradually in humans from birth to adolescence and increases slightly in old age.

The average adult rate is 70 beats per hour at rest. Temporarily, the rate rises in exercise, emotional thrills, and fever. The apex beat is a rhythmic pulsation that occurs on the chest and coincides with the heartbeat. It is caused by pressure placed on the chest wall by the hardened and rounded ventricular wall.