The exchange of gases (O2 & CO2) between the alveoli & the blood occurs by simple diffusion: O2 diffusing from the alveoli into the blood & CO2 from the blood into the alveoli. Diffusion requires a concentration gradient. in the alveoli must be kept at a lower lever than in the blood. We do this, of course, by breathing - continuously bringing fresh air (with lots of O2& little CO2) into the lungs & the alveoli. Breathing is an active process - requiring the contraction of skeletal muscles.
Quick Answer. During a rooster injection on a knee, the doctor cleans an injection site near the kneecap, inserts a needle and withdraws any extra fluid from the knee area, and then through the same needle injects a solution containing hyaluronic acid, a substance obtained from rooster combs, into the knee joint, according to WebMD.
Prolapse vent in chickens, also known as prolapsed oviduct, blow-out, cloacal prolapse, or pickout, â¦ âis a condition in which the lower part of a henâs oviduct turns inside out and protrudes through the vent.â1 Prolapse is a very serious condition that is treatable if caught early and is likely to recur.rolapse vent in chickens, also known as prolapsed oviduct, blow-out, cloacal prolapse, or pickout, â¦ âis a condition in which the lower part of a henâs oviduct turns inside out and protrudes through the vent.â1 Prolapse is a very serious condition that is treatable if caught early and is likely to recur.