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What is Cardiac Oxygen Supply?
It is the supply of oxygen to the heart; the oxygen is carried by the blood. When there's insufficient blood supply, oxygen supply is low too, and angina results. See http://en.wikipedia.org/wiki/Angina_pectoris
Where does the world's supply of oxygen mostly come from?
The majority of the world's oxygen supply comes from phytoplankton in the oceans, which produce about 50-85% of the Earth's oxygen. Land-based plants, such as trees and shrubs, also contribute a significant portion through the process of photosynthesis.
What Continent produce the most oxygen?
The Amazon Rainforest in South America produces the most oxygen in the world, contributing a significant portion of the Earth's oxygen supply.
Can thermal pollution reduce the oxygen supply in an aquatic ecosystem?
Yes, thermal pollution can reduce the oxygen supply in an aquatic ecosystem. When water temperatures increase, the solubility of oxygen decreases, resulting in lower oxygen levels in the water. This can have harmful effects on aquatic organisms that depend on oxygen to survive, leading to decreased biodiversity and potentially causing fish kills.
What activity would best keep the world's oxygen supply from decreasing?
Planting more trees and preserving existing forests is essential to maintaining and increasing the world's oxygen supply. Trees absorb carbon dioxide and release oxygen through photosynthesis, making them crucial in combating the decrease of oxygen levels in the atmosphere. Conservation efforts to protect natural habitats and reduce deforestation are also important in sustaining oxygen production.
What must the heart do when muscle cells are oxygen deprived?
When muscle cells are oxygen deprived, the heart must work harder to deliver enough oxygenated blood to the tissues. It may increase heart rate or contractility to compensate for the decreased oxygen supply. If oxygen deprivation persists, it can lead to tissue damage or even a heart attack.
What are 2 things that your muscle rely on?
Muscles during exercise need an adequate supply of glucose and oxygen. Heart rate increases during exercise to provide this supply.
What is Cardiac Oxygen Supply?
It is the supply of oxygen to the heart; the oxygen is carried by the blood. When there's insufficient blood supply, oxygen supply is low too, and angina results. See http://en.wikipedia.org/wiki/Angina_pectoris
Cardiac muscle tissue is supplied with nutrients and oxygen by which part of the human transport system?
Cardiac muscle tissue is supplied with nutrients and oxygen by the coronary arteries, which branch off the aorta and supply blood to the heart muscle. These arteries ensure adequate delivery of oxygen and nutrients to the heart for proper function.
How hard does the heart actually work?
It works very hard, but its the only muscle that doesn't fatigue. It beats throughout your entire lifetime. The heart tightly matches respiratory rate (ie when the heart beats faster, you breath more heavily-ie in exercise) to ensure adequate oxygen supply to the rest of the body. It however can not work without an adequate supply of oxygen, unlike skeletal muscle. When the isn't adequate oxygen supply to the heart, one experiences a 'heart attack'. The heart can alter heart rate (number of contractions per minute) as well as contractility (force of a contraction- achieved by altering ca2+ levels in heart/myocardium).
A tissue deprived of an oxygen supply during exercise would develop an accumulation of?
lactic acid due to anaerobic respiration. This can lead to muscle fatigue and a burning sensation as the body tries to metabolize the lactic acid through the oxygen debt mechanism.
Why is a rich blood supply important to muscle contraction?
For muscles to contract there needs to be an adequate supply of ATP within the cell. ATP is generated in part by a supply of glucose and oxidative phosphorylation. An inadequate supply of blood will not provide enough oxygen to keep up with the energy demands of contraction.
If cardiac muscle is deprived of its normal blood supply damage would primarily result from?
loss of oxygen.... the mitochondria in the cardiac muscle need it to continue to produce energy to keep the muscles contractiong without it the muscles seize from lactic acidosis a byproduct anaerobic respiration.
What is apoxia?
Apoxia is not a recognized medical term. It may be a misspelling or a misunderstanding of the term hypoxia, which refers to a condition in which the body or a region of the body is deprived of adequate oxygen supply. This can lead to symptoms such as shortness of breath, confusion, and in severe cases, organ damage.
Are coronary arteries oxygen rich or oxygen poor?
Coronary arteries are oxygen-rich. They supply blood to the heart muscle, which needs a constant supply of oxygen to function properly.
Insufficient transport of oxygen within the body no matter what the cause is what?
If there is insufficient transport of oxygen within the body, it can lead to hypoxia, which is a condition where the body or a region of the body is deprived of adequate oxygen supply. This can result in symptoms such as shortness of breath, confusion, and in severe cases, organ damage or failure. Treatment typically involves addressing the underlying cause and providing supplemental oxygen if necessary.
Does cardiac muscle have more mitochondria and depend less on a continual supply of oxygen than does skeletal muscle?
no
