Schematic drawing of the syrinx of a bird
1 ring last free cartilaginous tracheal eardrum 2 3 First siringales group rings Pessulus 4 5 6 side timpaniforme Membrana Membrana timpaniforme medial 7 second group of rings siringales 8 9 Bronquio main bronchial Cartilage
The syrinx is the vocal organ of birds. Located at the base of the trachea, and produces complex sounds without the vocal cords which are mammals. The sounds are produced by vibrations in the walls of the syrinx or the vibration of air through the syrinx.
Only the birds have a specialized agency and this allows many species (including parrots, the starling, the crows, the Jay, the magpies, etc.). Imitate the human voice.
Because the syrinx is located where the trachea bifurcates to form the bronchi, deeper than the mammalian larynx, many songbirds can produce two or more sounds simultaneously. The respiratory system is especially differences between mammals and birds. Those who only found in birds are breast Infraorbital, syrinx and air bags.
The nasal cavity is defined by different bones in different ways.
Most birds have an opening that connects the nasal and oral cavity (Coan). They have soft palate and have different mechanisms of swallowing and breathing.
Infraorbital is within the cranial cavity and ventral to the eye, which is empty and has to provide air bags and the nasal cavity. Getting in shape with gives you look that you always desired. Join the smell and is a relatively accessible cavity subcutaneously through the skin, and upper respiratory infections, it is easy to obtain samples or puncture exudates.
It is very important in live animals and necropsies.
Larynx morphology is very different from a mammal, comprising different cartilage. You do not have cartilage epiglotico. It has no vocal cords. Phonation is produced by the syrinx.
The trachea is completely enclosed ring and are arranged in the form of tiles forming a complete tube.
In the final portion of the trachea before the fork is the syrinx, which is very similar to the vocal cords of mammals. It consists of a fusion of cartilage eardrum. This is continuous with the tympanic membrane timpaniforme exterior and interior, which has no cartilage, and when you cram a vibration. Birds that can talk, the sound comes from the cavity celomica.
In some species (Anatidae), has a different morphology, but the mechanism is the same. They have a kind of snail with a very large cartilaginous same mechanism of production of sound.
The lungs of birds are different because they have no lobes. Are unique and are smaller than in mammals with the same size. In mammals, the air just in the alveolus. In birds, the air enters your lungs, gas exchange and terminates in blind sacs (air bags), which stores and cause air to enter and leave the air. They have separated the role of exchange and air inlet. In birds, is more frequent than that occurring aerosaculitis Pneumonies because it is easier to flourish.
In the lung air passes very quickly and is easier on the air bag because it is more.
They do not have lung lobes.
There bronchia primary, secondary and tertiary or parabronquios. The former have a bronchia extrapulmonary and intrapulmonary portion. Cranio-caudally walk around the lungs and end up in the air bag. Salen 4 secondary bronchi that run the lung parenchyma. Side of the post parabronquios or tertiary bronchi, which are different from mammals because they do not end up in the alveoli. The parabronquios make gas exchange. Is bounded by connective tissue. In the light, some cells (which are called atrium) that are separated by septa between them. In the apical portion of the alveoli are muscle of mammals. Open or close the wall of the atrium.
Bronchus of the light, you can reach the parenchyma of parabronquio that has many blood capillaries. Is the equivalent of the mammalian alveolar gas exchange because it goes to the air sacs where it is stored.
Bags aereos offset the small size of the lung. More than half of the respiratory system is the lung. There are odd (the most cranial: cervical (1), clavicle (1)) and pairs (cranial thoracic (2), caudal thoracic (2) and abdominal (2)). Involved in respiratory mechanics. Also neumatizan andalusia animal and decrease the density of the animal to be able to fly. The animal looks like a globe and infiltrate the bony structures and neumatiza. The air sack reaches the occipital cervical: encompasses the cervical vertebrae.
The abdominal air sacs penetrate between the arches of the vertebrae and femur to emit diverticula.

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