0
Arteries
Arteries are thick-walled blood vessels that carry oxygenated blood away from heart to various body parts.
2,480 Questions
How often does a coarctation of aorta occur?
Coarctation of the aorta (CoA) is a relatively common defect that accounts for 5-8% of all congenital heart defects. Coarctation of the aorta may occur as an isolated defect or in association with various other lesions, most commonly bicuspid aortic valve and ventricular septal defect (VSD). The diagnosis of coarctation of the aorta may be missed unless an index of suspicion is maintained, and diagnosis is often delayed until the patient develops congestive heart failure (CHF), which is common in infants, or hypertension, which is common in older children.
The carotid artery takes blood from the heart to the brain. The pulse may be felt either side of the front of neck, just below the angle of the jaw
The Aorta is the largest artery in the body and it is located at the top of the heart.
It ascends (rises up) out of the top of the heart and descends posterior to (behind) the heart. The descending aorta follows close to the anterior (front of the) spinal column. At about the level of the umbilicus (navel), the aorta bifurcates (divides) into the right and left common iliac arteries. The aorta carries all of the oxygenated blood from the heart for the entire body. Only the lungs are not fed from the aorta.
The general parts of the aorta are:
- The ascending aorta, which starts at the aortic valve in the heart ascends to the arch
- The aortic arch, the upper most part where the aorta begins to turn downward
- The descending thoracic aorta, which passes through the area protected by ribs
- The descending abdominal aorta, which starts after the lowest rib and ends at the common iliac arteries
What body cavity is the aorta in?
The descending aorta is divided into two portions, the thoracic and abdominal, in correspondence with the two great cavities of the trunk in which it is situated.
The descending thoracic aorta is located in posterior mediastinum.
Where does the carotid artery carry blood from?
The carotid artery carries blood from the heart to the neck and head.
What is making an incision in to an artery?
basically cutting a little bit into an artery but not all the way through.
What is the difference between coronary arteries and arteries?
Arteriosclerosis is any hardening (stiffening) of artery walls. One of the ways this can happen is through atherosclerosis, which is when an atheroma (a build-up of dead RBCs, fibres and platelets) begins to accumulate within an artery wall and may stick out into the lumen or even break through the endothelium. This makes the artery less flexible.
So someone with arteriosclerosis does not necessarily have atherosclerosis, but someone with atherosclerosis must have arteriosclerosis, as their arteries have hardened.
Why does an artery have a large amount of elastic tissue?
Arteries take blood from the heart and transport it to other parts of the body. They have a large amount of elastic tissue because the pressure of the blood flowing through the arteries is high.
The chemical can cause arteries to narrow explain what problems this might cause?
this might cause death because when the chemical affects & narrows the arteries it will cause difficulties in blood movement in the human body resulting in to diversion of blood transfusion in wrong directions.
Yes, and no. THE aorta is the bodies main artery that carries blood from the heart to the body. The aortic valve is a heart valve that, as you would expect, lies at the junction of the heart and the aorta. It prevents blood from flowing back into the heart once it has entered the aorta.
A artery is a blood vessel that caries blood from the heart to the tissues (capillary beds); the small, muscular ones just before the capillaries are called arterioles.
What organs does coronary thrombosis affect?
it's affect the heart because the arteries are damage so the blood can flow or the heart can pump blood and the blood cannot circulate to the otherparts of the body.
Why do arteries carry oxygen poor blood?
The pulmonary arteries carry deoxygenated blood from the right ventricle of the heart to the lungs, where the hemoglobin molecules in the red blood cells pick up oxygen molecules. The blood is being carried away from the heart, which classifies these vessels as arteries even though the blood does not contain oxygen.
Heart disease typically does not cause fatty deposits in the arteries. Rather the process is the other way around: an unhealthy diet high in fat and cholesterol causes a build up of fatty deposits, and these deposits lead to heart diseases such as Coronary Heart Disease.
What is largest artery in the pulmonary circulation?
aorta is main artery connection from the right ventricle which pump blood oxygen-rich through it and aorta will deleiver it to other body parts through its branches
Do arteries never carry oxygen-rich blood?
Arteries almost always carry oxygen rich blood. The only exception is the pulmonary artery.
Is an artery a cell or tissue or organ or organ system?
The artery is actually made of three tissues.
How do you control fermoral severed artery?
Simple answer: Apply firm, direct pressure directly above the severed site.
It will be extremely painful to the one with the injury. Because the femoral artery is among the larger blood vessels in the body, bleed-out will be quick. As with any arterial bleed, if the bleeding is not quickly controlled, certain death is almost inevitable.
How fast does blood flow from an artery?
For a normal adult, it takes close to one minute for a blood cell to circulate the body:-
The stroke volume (SV) of the heart is roughly 60-70ml. The total blood volume (BV) is 4-5L in an individual. Heart Rate (HR) at rest is roughly 60 beats/minute
to calculate the amount of time for circulation can be done using dimensional analysis.
SV * HR * minutes = BV
Time = BV/ (SV*HR)
Time = 5L / (60ml*60) = 1 - 1.5 minutes
also consider;
For a person at rest, it takes just about one minute. If you are more active, it will take less time. Exactly how long depends on several things: the rate at which your heart beats, how big your heart is, and, to a certain extent, how big you are as well.
A person's heart beats about 65 to 75 times a minutes. This is called the beat rate. With each beat, the heart pumps about 60 to 70 milliliters of blood. If you multiply the two values together, you find that the cardiovascular output is just about four to five liters per minute. Can you guess how much blood an individual has?
If you exercise, your heart rate increases, and it decreases when you rest. Your body has a remarkable way of knowing just how much blood should be flowing to properly distribute the nutrients it needs. The primary means of controlling cardiovascular output is by controlling the beat rate with hormones. One, called acetylcholine , acts to decrease beat rate, when you are resting or sleeping. Another, called norepinephrine, increases the rate at which your heart beats, when you are active or excited. The balance of these two hormones helps to keep the rate of your blood flow just right.
Why are arteries buried deep in the body?
Due to ventricular systole, the blood flows through arteries under pressure in a jerky motion. So it is better for the arteries to be placed deeply as lot of blood loss can occur when damaged if they are placed close to the skin.
When does the muscle of the heart gets is blood supply?
Of course heart muscles need a blood supply for the cellular respiratory process as the blood carries the final electron acceptor oxygen which is key to oxidative phosphorylation in humans.
