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Doctor insights on:
Which Is The Largest And The Main Artery Of The Circulatory System
Artery (Definition)
Arteries are defined as blood vessels which carry blood away from the heart (to either the body or lungs). Arteries: higher pressure, thicker walls, stretch (pulse) with each heart contraction & deliver blood to the arterioles which control the flow to individual capillaries. Veins are blood vessels which carry blood from capillaries back to the heart (body to right heart; ...Read more
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What is the function of the lungs in the circulatory system?
Oygenation: The short answer is that the lungs oxygenate the venous blood. ...Read more
3
What is the major function of the lymphatic system?
Lymphatics: read this: http://en.wikipedia.org/wiki/Lymphatic_system
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4
What is the purpose of the lymphatic system in and around the lungs?
Drainage of lymph: Lymph is a natural fluid made by the immune system (lymphatic system) to keep the body healthy. Any foreign material or waste product that persists in the blood (after liver) gets to the lymph system, where it is processed & "surveyed" to make sure there's nothing harmful. If there is, it goes to the immune cells to clean up. Lungs need it just like every other organ. ...Read more
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What is the source of blood in the hepatic portal system?
Here's a lecture...: ...by Andrew Wolf on the subject (9.41 minutes long). It's very nicely presented regarding hepatic portal circulation, including a review of the portal vein anatomy. Link to: https://www.youtube.com/watch?v=czTB8RpY0ag ...Read more
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What is the function of the lymphatic system?
Lymphatics: read this: http://en.wikipedia.org/wiki/Lymphatic_system
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7
Which part of the heart is affected by occluding the following coronary arteries?
See below: Lad ("left anterior descending" artery)--affects anterior (front) wall of the left ventricle, and apex (the tip). Circumflex artery--affects the lateral wall of left ventricle, and usually part of the posterior (back). Right coronary artery--affects inferior (bottom) wall of left ventricle and all of the right ventricle (if occluded proximally enough in its course). ...Read more
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Is the epicardium a main layer of the heart?
Eipicardium: read this for more info: http://en.wikipedia.org/wiki/Pericardium
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10
What is the difference betweens the walls of the veins entering the atria and the walls of the arteries leaving the ventricle?
Veins: the arterial walls are thicker and have more muscle to accommodate the higher pressures in arteries than veins ...Read more
11
Which portion of the brain is served by the anterior and middle cerebral arteries?
Cerebral Arteries: Anterior supplies the medial portions of the Frontal lobes & Superior medial Parietal lobes. Middle supplies the anterior part of Temporal lobes & the Insular cortices, & many parts of lateral cerebral cortex. ...Read more
12
What is the function of the nervous tissue in the kidneys?
Nervous tissu kidney: The nerves control blood flow and hormone production from the kidney. Recommend doing a wikipedia on nervous control of renal function. ...Read more
13
What is the name of the condition in which fatty deposits form in the inner lining of the arteries? Is it atherosclerosis/arteriosclerosis or cad?
Atherosclerosis: The deposits you mention are atheromas.
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14
Which is the function of lymph nodes and the lymphatic system in the body ?
Lymphatic system: The lymphatic system is basically a channel that carries a clear or whitish fluid called the lymph. This lymph aids in clearing the tissues of infective organisms, toxins etc. ...Read more
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What are the main functions of the cardiovascular system?
The engine...: The main function of the cardiovascular system is to keep all of the other organ systems functioning by providing them with blood flow. All the organ systems work in harmony to make the body work, some act like filters, some like computers, some like machines. The heart is like the engine in the car. You need all the parts of the car to work to drive it, but won't go anywhere without the engine. ...Read more
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What is the pathway of the blood from the renal artery to the renal vein?
Like : For any other organ / tissue the arteries bring blood, in this case the large renal artery, with oxygen and the waist products and splitsin the kidney into smaller and smaller branches that become eventually capillaries that connect with the venous capillaries that join biger end bigger vessels ending in the large renal vein, a branch of the vena cava that will end in the right heart. ...Read more
17
What is the name of that illness which is inside the nerves of the brain when the nervous currents can't cross the nerves of the brain in left side?
not sure: Not sure i understand the question. Do you mean like a disconnection syndrome? Maybe try rephrasing your question. ...Read more
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What is the purpose of the natural openings in the coronary arteries?
Blood flow: The coronary arteris originate with an os or opening which directs blood from the aorta into the coronaries and then into capillaries to provide the heart muscle with blood. ...Read more
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The histology of the major arteries and veins of systemic circulation?
What about them?: Please ask a specific question about the histology. That cannot be answered here = it would take many pages and diagrams. Such information is freely available on the internet. ...Read more
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What is the name of the condition which affects the joints of the elbow and lower arm?
Osteoarthritis?: There are different types of conditions that affect the joints of the elbow and hand. There is osteoarthritis (most common), rheumatoid arthritis, psoriatic arthritis and even gout can affect the wrists. ...Read more
Circulatory Disorders (Definition)
Circulatory disorders is a term for any disease that affects veins or arteries ...Read more
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