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How can small arteries help control the distribution of blood to tissues which have a high demand for oxygen and nutrients?
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∙ 12y ago
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∙ 12y ago
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How are Heart Attack and Stroke similar?
They are both blockages in the arteries that supply oxygen and nutrients to the tissues, that ultimately cause irreversible damage to either the heart or brain.
What organ system brings the blood to the body?
The cardiovascular system brings blood to the body. You have more than 50,000 miles of blood vessels in your body.
Why do most tissues have a greater supply of capillaries than veins and arteries?
Capillaries service cells, arteries and veins transport blood to and from capillaries, respectively.
One of the major characteristics of arteries supplying peripheral tissues is that they are?
elastic muscular rigid
Does blood flow more rapidly in the capillaries or in arteries?
Remember arteries come from the heart, and veins go from the organs back to the heart. Therefore, as the heart is the main pump, the arteries have the greatest pressure, so "the blood flow is more rapid in arteries."
What carries blood and nutrients to the heart?
The coronary arteries carry blood and nutrients to the tissues of the heart. They are part of the systemic circulation.
Vessels that connect arteries to veins and where the tissues exchange gases and nutrients with the blood are called?
Capillaries
What does hemoglobin bind oxygen with when it reaches the arteries?
Oxygen is bound to the haemoglobin in the blood in the lung tissues, then this oxygenated blood is returned to the heart for distribution via the arteries.
What effects are seen on the circulatory system?
When the heart stops beating the supply of blood containing nutrients and oxygen stops reaching the tissues of the body, as there is nothing to push it around the arteries. This then leads to lack of nutrients for the cells in the tissues thus the tissues start to die.
How are Heart Attack and Stroke similar?
They are both blockages in the arteries that supply oxygen and nutrients to the tissues, that ultimately cause irreversible damage to either the heart or brain.
What is the role of the capillaries?
Capillaries are very small blood vessels found within the tissues of the body. Its primary role is to transport blood from arteries to the veins.
Do gases pass through your veins?
Arteries usually carry gasses such as oxygen throughout the blood. The gasses are then diffused through capillary beds to be used as nutrients by tissues in the body.
What would happen if your body only had viens and no arteries?
Viens bring deoxygenated (no oxygen) blood back to the heart. Arteries bring oxygenated (with oxygen) to tissues, muscles, etc. throughout the body. If there are no arteries, tissures, muscles, etc. couldn't get oxygen or nutrients, and therefore, couldn't fuction. The result is immediate death.
Are composed of smooth muscles that encircle the entrances ti capillaries and thus can control the distribution of blood within tissues?
Precapillary sphincter
What delivers blood to your body tissues?
Veins and arteries.
How do nutrients from food gets to your bones and muscles?
This is accomplished by the circulatory system - from the arteries, to the arterioles, down to the tiniest of capillaries, which feed all tissues, including muscle and bone. Exchange finally occurs between the capillary membrane and the cell membrane.
What are the Vessels to heart?
There are three main types of blood vessels. The arteries(red) carry oxygen and nutrients away from your heart, to your body's tissues. The veins (blue) take oxygen-poorbloodback to the heart.
