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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.
What else can I help you with?
Has a greater partial pressure in the pulmonary capillaries than in the alveoli so it diffuses into the?
C02:alveoli
Is o2 concentration greater in the pulmonary capillaries or alveoli?
In the alveoli
According to if it were not for pulmonary surfactants you should expect the surface tension in a small alveolus to produce greater pressure than in a large one and air would flow from small to large?
Pulmonary surfactants reduce surface tension in alveoli, preventing them from collapsing and making it easier for air to flow in and out of the lungs. Without surfactants, smaller alveoli would have a higher surface tension, leading to greater pressure inside them compared to larger alveoli. As a result, air would tend to flow from smaller alveoli to larger ones to equalize pressure, potentially causing problems with lung function.
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.
What contains the greater volume of blood arterial or venous system?
our total blood volume is unevenly distributed amongst the arteries, veins and capillaries. The heart, arteries , pulmonary and systemic circuits contain about 1.5 liters of whole blood. The venous system contains 3.5 liters, which is circulating within the liveer, bone marrow and skin.
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.
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.
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.
What ethnic group is at greatest risk for occlusive arterial disease?
African-Americans have been shown to be at greater risk for arterial occlusion than other racial groups in the United States.
