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Circulatory System
Circulatory System is the category for questions about the human circulatory system, including questions about the human heart, arteries, and veins.
2,116 Questions
What is the path of blood through the body?
Blood leaves the left side of the heart and travels through arteries, which gradually divide into capillaries. In the capillaries, food and oxygen are released to the body cells, and carbon dioxide and other waste products are returned to the bloodstream.
What vessels that carry blood from aorta to kidneys?
The abdominal aorta carries blood from the heart to the kidneys.
How is the circulatory system adapted to prevent blood loss and infection?
The essence of the circulatory system is what it carries - the blood. Blood consists of cells and plasma. Plasma is mostly water, but also carries nutrients and waste to and from the tissues of the body and hormones among tissues. The cells include red blood cells, which carry oxygen, and white blood cells, which aid in immunity and protective functions. Platelets are also found in the blood and are responsible for healing responses when blood leaks from a vessel, effectively clotting the break to prevent blood loss.
What is the difference between double circulation and single circulation?
Single circulation
1. Occurrence: Found in only fishes.
2. Mode of circulation: Blood passes only once through the heart to supply once to the body.
3. Nature of blood: Only venous blood passes through the heart.
4. Efficiency: Less efficient as gill capillaries slow down the blood flow so the body receives blood at a low pressure which decreases the rate of oxygen supply to the cells.
Double circulation
1. Occurrence: Found in amphibians, reptiles, birds and mammals.
2. Mode of circulation: Blood passes twice through the heart to supply once to the body.
3. Nature of blood: Mixed or oxygenated or venous blood passes through heart.
4. Efficiency: More efficient as blood flows at higher pressure, especially in birds and mammals, which increases the rate of food and oxygen supply to the cell and also rapid removal of wastes from them.
What drugs affect your body in the circulatory system?
What similarities are there between a fish and human heart?
The frog heart differs from the mammalian heart anatomically in that they are three chambered rather than four chambered. The pacemaker in the amphibian heart is the sinus venosus, a thin-walled sac that receives blood from the anterior and posterior caval veins and empties blood into the right atrium. The single ventricle receives blood from both atria and pumps blood out through the large artery called the truncus arteriosus (Figure 1). In contrast, the mammalian ventricle has separate left and right chambers, which prevent mixing of the venous and arterial blood.
How does the circulatory system work with the respiratory system in the sequence for respiration?
The Respitory system gets oxygen into the Circulatory system that takes the Oxygen, through the blood stream, to other parts of the body
What is the inside of blood vessels lined with?
A thin, single-celled, layer of squamous endothelial tissue overlapped inside by an interlacing network of other cell tissue. There are two more layers on top of this inner layer.
What funnctions does the circulatory syatem play in the body?
To transfer oxygen and blood around the body.
Why do you need a strong respiratory system?
You need a respiratory system to bring oxygen into your body and to remove carbon dioxide from your body..
How do you build a circulatory system model?
Try to be creative:
- you can buy materials
- find materials in the dump, your house or in lost and found
- Put your thoughts on paper
There are a number of ways you can do this. You can do this with wood, paper, clay, etc. Look at an anatomy book for ideas.
If you want to use tech, then you could use a pump and tubing, maybe colored water to go through the tubes.
What are the structures of the circulatory system and their functions?
the stucture of the circulatory system is to the circulatory - or cardiovascular - system carries blood that is low in oxygen away from the heart to the lungs via veins, where oxygen levels are restored through the air which we breath in; once oxygenated, this blood is then carried throughout the body via arteries, keeping our organs and tissue alive.
It consists of the heart, which powers the whole process; the veins and arteries; and capillaries, which deliver oxgen to tissue at the cellular level.
What are the disorders of the circulatory system?
Disorders of the circulatory system
The circulatory system can be damaged by disease or injury. One of the most common diseases of the system is arteriosclerosis, which results from the accumulation of fatty deposits in the arteries. Such deposits stiffen and thicken the walls of the arteries. As a result, the flow of blood is restricted. In some cases, blood clots develop in vessels affected by arteriosclerosis. Such clots may lead to a heart attack or a stroke, a condition in which the brain does not receive enough blood.
Another disease, hypertension, commonly called high blood pressure, is often associated with arteriosclerosis. Hypertension makes the heart work harder and may lead to such complications as a heart attack, a stroke, or kidney failure.
Treatment for arteriosclerosis and hypertension includes rest, exercise, and changes in the diet. Doctors may prescribe various drugs to lower the blood pressure, strengthen the heart, or prevent infection and blood clots. In extreme cases, a surgeon may remove clots or replace one or more diseased blood vessels.
Other disorders of the circulatory system result from damage or defects in the heart or blood vessels. For example, rheumatic fever may harm or destroy the valves that control the flow of blood through the heart. Incomplete development of the heart or its blood vessels before birth may produce defects called congenital heart disorders. Some cases of damage or defects can be corrected by surgery.
Coronary artery disease is another disorder of the circulatory system, with many causes.
How does a stroke affect the circulatory system?
By definition a stroke affects the brain by blocking small arteries that carry blood to the cells and deliver nutrients and oxygen. These become blocked and the cells that the artery is leading to, die. A similar thing happens when arteries to the heart muscle cells that are blocked causing a heart attack.
Why is your respiratory system called a 'system'?
Because a system is a group of organs and respiratory has organs.
How do the lungs affect or assist the circulatory system?
the purpose of the lungs in circulatory system is breathe in and out, supply oxygen to the blood And remove poisons and damaged blood cells .
Easy, they fill up with air when you breathe in, and they push the air out when you breathe out.
I think the function is to oxygenate blood.
The lungs bring oxygen in to the body,but to get in the body the circulatory system takes out the oxygen and passes it around the blood stream
The function of the lungs in your circulatory system is to help you breath,and starts the air in your body,
do you even science ?
blood
Which Three components are common to the circulatory systems of most living things?
heart, vessels, circulating fluids
What type of Circulatory system is found in humans?
mammals have closed circulatory system and further double circulatory system.
Maintaining the volume and composition of body fluids is the direct responsibility of which system?
Circulatory system
Why is aerobic endurance important in any sport?
Muscular endurance is very important for people playing sports and who have to sustain an activity for long periods of time. Muscular endurance is determined by how well your slow twitch muscle fibers are developed.
How is the hydra able to survive without a circulatory or transport system?
most of the cells are in contact with a watery environment
What are the 3 main parts of the human heart?
The heart rate is controlled by the opposing actions of sympathetic and parasympathetic nerves and by the action of epinephrine released from the adrenal gland. Norepinephrine, released by sympathetic nerves in the heart, and epinephrine, released by the adrenal gland, increase the heart rate, while acetylcholine, released from parasympathetic nerves, decreases
How does the cardioscular system and the nerves system work together?
The autonomic nervous system regulates the cardiovascular system. The parasympathetic division innervates the heart via the vagus nerve. The sympathetic division also innervates the heart, but additionally, it supplies innervation to the smooth muscle lining blood vessels. The sympathetic division has a substantial effect on blood pressure, and on local blood flow, via constriction of arterioles.
The cardiovascular system is important to maintain supply of oxygen and nutrients, and removal of wastes, from the nervous system.
