Heart

i think it is thalamus

Easy all you gotta do is put sticky tape on the hole or use staples if you are to cheap to buy sticky tape

The horse's heart works basically the same as ours. Four chambers and valves between them. We are not that different at that level - humans and horses are both mammals and all mammals have similar hearts.

It is known as stroke volume.

Stroke volume (SV) is the volume of blood pumped by the right/left ventricle of the heart in one contraction.

The stroke volume is not all of the blood contained in the left ventricle. The heart does not pump all the blood out of the ventricle. Normally, only about two-thirds of the blood in the ventricle is put out with each beat. What blood is actually pumped from the left ventricle is the stroke volume and it, together with the heart rate, determines the cardiac output.

A heart can last six hours after being removed

Source: http://www.usatoday.com/news/health/2001-10-06-heart.htm

In the United States, to become a cardiovascular surgeon, one must obtain an undergraduate degree (usually 4 years), and then obtain a medical degree (4 years). He/she then completes a general surgery residency program (often 5 years) and finally completes a cardiovascular/thoracic surgery fellowship (3-4 years). Thus, the entire length of training after high school is typically 16-17 years.

Congestive heart failure is the condition of a weakened heart not able to pump blood effectively.
Congestive heart failure.

A four-chambered heart prevents oxygen-rich blood from mixing with oxygen-poor blood and therefore ensures more efficient circulation than a three-chambered heart. Efficient circulation of blood is necessary for an animal with high metabolic needs. Birds have high energy requirements because they are warm-blooded and move mostly by flying.

The right atrium receives blood from the systemic circulation and helps to fill the right ventricle. The right ventricle pumps blood into the pulmonary artery to be transported to the lungs.

There is an aorta and a ventricle on each side of the heart.

Two - the left and right ventricles. The upper chambers are the left and right atria

Myocardial infarction (heart attack, colloquially speaking).

ependymal cells

describe the location of the heart and its orientation in the body cavity

Exercises that cause the heart to beat faster include fast walking, bicycling, jogging, roller skating, swimming, and walking up stairs

In different ways, heart "movement" can be measured (inferentially or explicitly) by EKG/ECG, Cardio Nuclear Medicine Study, fMRI, rapid multi-slice hi-res CT, and ultrasound imaging.

well form the legs it would be The great saphenous vein and femoral vein that empty into the inferior vena cave, which leads back to the heart

It would be better to say what type of waste, if it is carbon dioxide you are talking about the red blood cells do some of that. There is a lot of waste products, specify which one and we can try and tell you.

Deoxygenated blood enters the right atrium via the vena cava, then passes through the tricuspid valve to the right ventricle. The blood is then pumped via this ventricle via the pulmonary arteries to the lungs to pick up oxygen. Oxygen-rich blood returns to the left atrium of the heart via the pulmonary veins and passes via the mitral valve to the left ventricle. This powerful pump then sends the blood through the aortic valve to the aorta and on to the entire body to nourish all living tissue and cells

Valves in the heart close (or open) due to pressure changes in the 4 chambers of the heart. When blood flows into the heart through the pulmonary vein (oxygenated) the heart is in diastole so both the left atrium and ventricle fill. At this point, the bicuspid valve between the chambers is open. When the left atrium becomes full of blood, stretch receptors trigger a response from the SA node - this leads to a contraction of the left atrium (bicuspid valve forced open by pressure). The pressure then exerted from the left ventricle on the left atrium causes the valve to close. This prevents back-flow into the left atrium. When the left ventricle is full, the AV node sends an impulse down the Bundle of His, and to the Prukinje fibres. The left ventricle is subsequently "squeezed" causing blood to flow up the aorta and out to the body. When the heart is contracting like this it is in Systole. Similarly, valves in the aorta close due to the pressure of the blood (caused by gravity). This, again, prevents back-flow in the heart. A similar chain of events occurs in the right side of the heart.

The theoritical maixmum heart rate would be 220 - 14 = 206 beats per minute; however, this is only an approximate and could vary around +/- 10%. This said, your MHR could be somewhere between 186 and 226, with a great likehood of being around 206 bpm.

The left ventricle is where the blood that is oxygenated is pumped from into the aorta. The atrium is the above the left ventricle, and the bicuspid valve (which controls blood flow) has a place where there is a more controlled amount of blood going into the aorta.

82 times a minute

The heart is approximately the size of your fist and is located in the middle/left part of your chest.