How does the heart keep the blood moving in the body?

Answer 1

The heart has an area called the sinuatrial node, often called the SA node, in the upper right atrium. The SA node is responsible for generating a never-ending series of rhythmic electrical pulses that radiate through specific electrical conduction pathways in the heart. The heart muscle contracts when stimulated by one of these electrical pulses. The SA node and the conduction pathways coordinate the timing and delivery of the electrical stimulations at various locations in the heart muscle so that the heart contractions result in a coherent and productive pumping action.

For more information, follow the link below to the Wikipedia article on the electrical conduction system of the heart.

Answer 2

The heart rate is regulated by the constricting and expanding of blood vessels. When the capillaries constrict, blood has limited space to move through, thus the heart beats faster. When the capillaries expand or relax, blood has more space to move through the vessels and the heart beats slower. It's also regulated by the brain. The SA, or Sinoatrial node, sends signals to the heart from the brain to increase or decrease the beats.

Answer 3

The heart is a muscle. The brain sends impulses to the heart along nerve fibres. These impulses are sent to nodes that line the heart, these nodes regulate the rate and rhythm of the heart as it contracts to pump blood to the body.

Answer 4

By pumping the blood throughout the body so all the cells can get what they need to stay alive and maintain homeostasis.

Answer 5

the heart stays alive by pumping the blood around the body and we bring oxegen in to the blood for our body to stay alive

Answer 6

pumping the blood from the lung then to general circulation

Answer 7

60-100 beats per minute (human heart)