During the first inspiration, the air travels through the nostrils, also called nares, of a bird, which are located at the junction between the top of the upper beak and the head. The fleshy tissue that surrounds them, in some birds, is called the cere. As in mammals, air moves through the nostrils into the nasal cavity. From there it passes through the larynx and into the trachea. Air moves through the trachea to the syrinx, which is located at the point just before the trachea divides in two. It passes through the syrinx and then the air stream is divided in two as the trachea divides. The air does not go directly to the lung, but instead travels to the caudal (posterior) air sacs. A small amount of air will pass through the caudal air sacs to the lung. During the first expiration, the air is moved from the posterior air sacs through the ventrobronchi and dorsobronchi into the lungs. The bronchi continue to divide into smaller diameter air capillaries. Two kinds of capillaries flow side by side, in opposite directions - the air flowing caudal to cranial and the blood flowing cranial to caudal (in general). This acts as a "countercurrent exchange" mechanism. Blood capillaries flow through the air capillaries and this is where the oxygen and carbon dioxide are exchanged. When the bird inspires the second time, the air moves to the cranial air sacs. On the second expiration, the air moves out of the cranial air sacs, through the syrinx into the trachea, through the larynx, and finally through the nasal cavity and out of the nostrils.
During the first inspiration, the air travels through the nostrils, also called nares, of a bird, which are located at the junction between the top of the upper beak and the head. The fleshy tissue that surrounds them, in some birds, is called the cere. As in mammals, air moves through the nostrils into the nasal cavity. From there it passes through the larynx and into the trachea. Air moves through the trachea to the syrinx, which is located at the point just before the trachea divides in two. It passes through the syrinx and then the air stream is divided in two as the trachea divides. The air does not go directly to the lung, but instead travels to the caudal (posterior) air sacs. A small amount of air will pass through the caudal air sacs to the lung. During the first expiration, the air is moved from the posterior air sacs through the ventrobronchi and dorsobronchi into the lungs. The bronchi continue to divide into smaller diameter air capillaries. Two kinds of capillaries flow side by side, in opposite directions - the air flowing caudal to cranial and the blood flowing cranial to caudal (in general). This acts as a "countercurrent exchange" mechanism. Blood capillaries flow through the air capillaries and this is where the oxygen and carbon dioxide are exchanged. When the bird inspires the second time, the air moves to the cranial air sacs. On the second expiration, the air moves out of the cranial air sacs, through the syrinx into the trachea, through the larynx, and finally through the nasal cavity and out of the nostrils.
No.
Like all birds, robins breathe with lungs.
Fish and mammals are both classified as animals. They both have lungs and an endoskeleton. Fish breathe through gills and live in water. Mammals breathe through lungs and most live on land. Fish reproduce by laying eggs, while mammals give live birth.
The american robin is actually a type of thrush, wheras the european robin is a true robin.
Robin Longstride is given as the name for Robin Hood in the 2010 movie, Robin Hood.
Ariel is not a fish, she is a mermaid and mermaids just have fish tails, no gills.
Robin Loc
they breathe with gills
gills.
Fish use gills to breathe underwater.
Yes, fish do 'breathe' through gills.
Fish breathe with the help with gills.
Gills
The gills and the brain
YES IT CAN BREATHE THROUGH BOTH lungs and gills
No,not all fish breathe through gills
Fish breathe with gills. By the way, whales do not. They breathe air, because they are mammals.
They breathe with gills and lungs
through gills