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Is o2 concentration greater in the pulmonary capillaries or alveoli?
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoin the alveoulus as air that is entered is more concentrated in oxygen than that of the capillary coming from the body which has deoxygenated blood
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Has a greater partial pressure in the pulmonary capillaries than in the alveoli so it diffuses into the?
C02:alveoli
Is Pco2 is greater in the alveoli than it is in the arterial end of pulmonary capillaries?
No. Once blood reaches the alveoli it will immediately start to release CO2 to the air in our lungs and absorb O2 from the air in our lungs. This means that the PCO2 will be higher in the blood of the pulmonary artery than in the blood of the alveolus. If this were not so, then passing blood through the alveoli would be pointless.
Oxygen diffuses into the capillaries of the lungs because there is a?
greater concentration of oxygen in the air sacs of the lungs than in the capillaries.
How is blood oxygenated in the lungs?
The operating principle is a process called diffusion, which causes a substance to move from a region of high concentration to a region of lower concentration. Think of a squirt of perfume diffusing from a corner in a room until you can smell it everywhere in the room. Blood returning from the body to the lungs has a higher percentage of carbon dioxide (CO2) than the air inhaled into the lungs does. Conversely the concentration of oxygen (O2) in the inhaled air is greater than the concentration of O2 in the returning blood. Haemoglobin, which can (loosely) bond to both O2 and CO2, facilitates the exchange of gasses from respective regions of high concentration to the regions of lower concentration. Specifically, CO2 moves from the returning blood (higher concentration) to the air in the lungs (lower concentration) and oxygen moves in the other direction, thus oxygenating the blood.
Where is the oxygen in greater concentrations in the alveoli or in the blood?
alveoli son..
How is the heart involved in pulmonary circulation?
Right side of the heart is involved in pulmonary circulation. This circulation is called, at times, as lesser circulation, as against the greater or systemic circulation. Blood that flows through the lesser and greater circulation is same in amount. But there is gross difference between the two. You have interstitial compartment in the systemic circulation. This is maintained through high blood pressure there. You do not have the same in pulmonary circulation. What you need here is simple blood flow, with out formation of the interstitial compartment. For that you have blood systolic blood pressure of about 25 mm of mercury. The blood pressure in the capillaries is about 15 mm of the mercury. The oncotic pressure of the blood proteins is about 22 mm of mercury. So very little fluid is leaked out to keep the alveoli wet. Some times in diseased condition more fluid is leaked out in the alveoli, to give rise to pulmonary oedema.
Do you expect the pressure to be greater in the capillaries or the vein?
i would say capillaries...
What are the two types of circulation of blood in the body?
Pulmonary and systemic
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.
There is a greater concentration of na plus and there is a greater concentration of k plus in the cell?
There is a greater concentration of Na plus outside and there is a greater concentration of K plus inside the cell. When the stimulus is delivered, the permeability of the membrane is changed, and Na plus diffuses into the cell, initiating the depolarization of the membrane.
How many times greater ias the concentration of DDT in fish than seawater?
The concentration of DDT in the fish is 430,000 times greater than the concentration of DDT in the water.
Why must capillaries have a greater surface area to volume ratio compared to arteries?
Capillaries are tiny blood vessels. They need to have a greater surface area to volume ratio because they need to diffuse oxygen quicker.
