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Doctor insights on: Layers Of The Heart And Their Functions

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Dr. Gutti Rao Dr. Rao
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Describe the structure and function of myocardium and endocardium.?

Dr. Gutti Rao Dr. Rao
1 doctor agreed:
Describe the structure and function of myocardium and endocardium.?

Endocardium: Endocardium: inner lining of the heart. Heart valves are made up of endocardium. Myocardium: thick muscle mass in the middle of the heart. Function: electrical conductivity and contractility of the heart pericardium or epicardium: outer protective fibrous layer. ...Read more

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What are the functions of fiber and lipids in the body?

What are the functions of fiber and lipids in the body?

Lots: Fiber is dietary, not digested and can act as laxative and contribute to a healthier digestive system. Lipids have many functions including structure, metabolism, energy, ... ...Read more

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can the destruction of neurons nerve cells body cause chaos in the brain and body and affect chemical and electrical signals in the body?

Sometimes Yes: This question is vague and unclear, but with that said I can acknowledge that brain and body are electrical energy systems connected by miles of nerve fibers. There is much yet to be understood about the brain, but enough is known about spinal cord and brain dysfunction to know that a significant enough insult or damage to any one area can disrupt various other system processes. ...Read more

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Does the composition of blood change as it passes through different parts of the body (e.g. the intestines and the lungs)?

Does the composition of blood change as it passes through different parts of the body (e.g. the intestines and the lungs)?

Well sure...: More oxygen/less CO2 in blood after passing thru lungs; more absorbed nutrients after passing thru gut; first-pass metabolism occurs in liver; reduced nitrogenous waste after passing thru kidneys, etc. ...Read more

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What area of the brain has the greatest effect on visceral functions (e.g. heart rate and hormone production)?

What area of the brain has the greatest effect on visceral functions (e.g. heart rate and hormone production)?

Hormones: Please go online to Yahoo Images or something similar and look for images of the Pituitary Gland. There is usually a small comment with the images. Fell free to contact me again if there are things on the web you don't fully understand. You can of course also discuss these items with your doctor. ...Read more

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How do the cells and tiny capillary walls in the soles of our feet hold up to all of that pressure and abuse?

How do the cells and tiny capillary walls in the soles of our feet hold up to all of that pressure and abuse?

Thick skin.: The skin covering the soles of your feet is the thickest on your entire body; and it thickens even more if you use your feet a lot, such as run marathons. The thick skin protects the underlying structures from damage. There is also a layer of fat below the skin that acts as a cushion. ...Read more

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Why do diseases of the circulatory system often affect the health of the rest of the body?

Why do diseases of the circulatory system often affect the health of the rest of the body?

Well: This is a very good question. Now if you remember the circulatory system travels throughout the body so if there is a disease of the circulatory system it will be spread throughout the body because the circulatory system travels everywhere ...Read more

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Describe the relationship between types of lipoprotein in the blood and heart disease?

Describe the relationship between types of lipoprotein in the blood and heart disease?

Good and bad: Ldl (low density lipoprotein) is associated with developing atherosclerosis which leads to heart attacks and strokes. The lower it is, the better. Hdl (high density lipoprotein) is inversely correlated with atherosclerosis. The higher it is, the better. Vldl (very low density lipoprotein) doesn't correlate well with heart disease. ...Read more

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What is the structure and function of the heart valve?

What is the structure and function of the heart valve?

Leaflets, flow cont.: Heart valves are made of fibrous tissues that are supported in the case of tricuspid and mitral valves with muscles and apparatus that work as a unit. These generally work as check valves, allowing the flow of blood in one direction only and not backwards. ...Read more

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The sympathetic chain is the pathway between the body (all organs and systems in the body), and disrupting it will affect the whole, not just sweating?

The sympathetic chain is the pathway between the body (all organs and systems in the body), and disrupting it will affect the whole, not just sweating?

It depends...: It depends on what kind of damage (disruption), such as: which nerves, where in the nerves, how many nerves, the size of the nerves, etc... The signals from sympathetic nerves create effects like include pupil dilation, increased sweating, increased heart rate, and increased blood pressure. ...Read more

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What are the functions of the coronary arteries and veins?

What are the functions of the coronary arteries and veins?

Coronary: Coronary arteries supply oxygenated blood to the heart while the veins drain deoxygenated blood away from the heart. ...Read more

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Which site in the heart starts the sequence of electrical waves throughout the heart?

Which site in the heart starts the sequence of electrical waves throughout the heart?

Sinus node.: The electrical activity of the heart originates from the sinus node, which is why a normal heart rhythm is called "sinus rhythm". ...Read more

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What is the sequence of blood flow through the heart and vascular system?

What is the sequence of blood flow through the heart and vascular system?

Here you go: Blood enters through the vena cavae, passes through the right atrium into the right ventricle. The blood then goes out into the lungs and returns via the pulmonary veins to the left atrium. That blood then goes out the left ventricle to the body and returns via the vena cavae. The order of blood vessels is great vessels, arteries, arterioles, capillaries, venules, veins and back to the cavae. ...Read more

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What is the difference in thickness of the walls of the atria and the ventricles and why?

What is the difference in thickness of the walls of the atria and the ventricles and why?

Pressure: The atrial are "low" pressure chambers and have thinner walls. The ventricles are "high" pressure chambers, to pump the blood out to the body and have normally thicker walls. ...Read more