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The blood returning to the heart after delivering its load of oxygen is deoxygenated, but it is still carrying 75% of its full capacity. When this deoxygentated blood is pumped to the lungs and into the pulmonary capillaries, it meets oxygen rich air that has been inhaled. And, in tiny sacks called alveoli, the gas exchange occurs where carbon-dioxide is diffused into the air in the alveoli, and the oxygen is replenished back to 100% capacity so it can be pumped throughout the body tissues.
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The movement of oxygen from the lung into the pulmonary capillaries is by?
diffusion
What is the site at which oxygen enters the pulmonary blood?
Oxygen enters the pulmonary blood in the capillaries of the alveoli -- the air sacs of the lungs.
What happens to the blood as it passes through the pulmonary capillaries?
There is an exchange with oxygen, nutrients, and carbon dioxide and water vapor.
What is the exchange of oxygen an carbon dixoide through the cell membrain an capillaries?
This process, from the alveoli in the lungs, to the pulmonary capillaries, is generally termed "respiration".
How does oxygen-rich blood travel from the heart to capillaries around the body?
through pulmonary veins
Do capillaries transfer waste filled blood from tissues into the pulmonary circulation?
The Capillaries transfers waste filled blood from the tissues into the Pulmonary circulation.capillariesTiny blood vessels that pass food and oxygen to cells and receive waste from cells.
When the oxygen goes into the bloodstream it goes into arteries veins or capillaries?
Oxygen moves into the lungs to the alveoli in the lungs into capillaries into pulmonary veins to the heart then to arteries that go through the rest of the body.
Do arteries carry oxygen-rich blood to capillaries?
Systemic Arteries carry oxygen rich blood (also called oxygenated blood). Pulmonary Arteries carry oxygen poor (deoxygenated) blood
What happens to the blood inside the pulmonary capillaries?
Gasses are exchanged (CO2 is lost & O2 is gained).
Allincrease the partial pressure of oxygen in pulmonary capillaries except increase A.partial pressure of oxygen in alveoliB.pulmonary capillary blood flowC.respiratory membrane surface areaD.altitude?
altitude
What develops within the pulmonary capillaries when the pressure increases?
pulmonary edema
What vessels carry blood from the pulmonary capillaries to the left atrium?
pulmonary vein
