Heart

Both walking briskly, uphill / against a force (like the wind, for example), or for long periods of time can increase your heart rate as this is considered exercise. Walking to your car in the morning or down the hall in your house probably won't do much to your heart rate.

Strokes.

No arteries do, these then lead into arterioles and into capilliaries.

Knife wounds can range from relatively minor puncture wounds to fatal or paralyzing inury. If a sharp object cuts a vein, artery, or internal organ, internal bleeding can be fatal. Damage to nerves, or to the brain from loss of blood, are also potentially lethal.

If you were stabbed in the back, you could be permanently paralyzed if it severs the spine. If you get stabbed in the ribs, it it could lead to serious breathing problems and at best it takes a long time to heal. Damage to some organs (spleen, kidney) may not heal, or could be surgically irreparable.

Left

An aortic valve surgery uses minimally invasive techniques that may last 2-3 hours. The endoscopic method, or keyhole approach is relatively simple. Before the surgery is performed, the patient receives general anesthesia. Next, 1-4 small holes are made in the chest. Then, the surgeon uses special instruments and a camera to complete the surgery.

Heart Disease can lead to death. You can't cure it but you can make it better.

This disease is a lifelong disease.

A human female heart on average weighs from 8 to 10 ounces, or 250 to 300 grams. Because the female heart is smaller than the male heart, it pumps less blood through the body per beat and needs to beat faster to achieve proper circulation.

it affects you game because you do not have enough oxygen inside you and you need to be motivated to do something you should start with a warm up and then move onto a game to get the pulse and heartbeat racing

If blood flow is cut off to a body part then the blood becomes deoxygenated and no fresh blood can enter and provide important nutrients. The body part typically darkens to black as the body part begins to rot basically. During this process you lose feeling and the limb goes cold.

The amount of blood ejected from the heart with each beat is called the "stroke volume".

When you become active, you need more of oxygen and nutrition for muscle cells. So heart pumps more blood to meet the requirement.

Actually, if you think about it the job of a heart is to pump blood throughout the body, the constant need of pumping this blood requires the strength and endurance to continuously pump without end, thus you can only imagine the need for strong muscles a heart may have.

Because....... I LOVE EGGS!

Chambers of heart are normally named as Right Atrium, Right Ventricle, Left Atrium and Left ventricle. Each of the chambers has very important role. Right atrium receives blood which is oxygen depleted in nature from all parts of the body and then it pumps it to the right ventricle. Once blood reaches right ventricle it readily pumps it with the help of pulmonary artery into lungs. Now Left atrium receives oxygen-rich blood via pulmonary veins and transfers it to left ventricle. Now, left ventricle pumps oxygen rich blood to entire body with the help of aorta.

PULMONARY to lungs and back

SYSTEMIC to body parts and back

Some foods that known to improve blood circulation are salmon, goji berries, oranges, avocados, and lemons. Other foods on the list are dark chocolate, garlic, ginger, and watermelon.

A shark heart has two chambers.

Dick

#1 how the hell did you manage to confuse "know" and "no" ?

#2 The circulatory system keeps you alive. Every day people breathe in oxygen from the air which gets carried from the lungs to the tinniest of blood vessels, which take it in and transfer it to the blood stream. Blood carries oxygen to every cell of your being. The oxygen is needed to utilize the food you eat and without it we wouldn't exist.

When the right ventricle contracts, the valve between the upper chamber (right atrium) and the lower chamber (right ventricle) is closed. This closure prevents backflow of blood into the atrium. At the same time, the pulmonary valve opens, allowing blood to be pumped from the right ventricle into the pulmonary artery and towards the lungs for oxygenation.

something

By minute electrical singles produced by the heart itself to open and close the valves.

He lasted 19 days (he died of pneumoina).