Lungs
Transcript: The Respiratory System Respiratory System Nostrils Nasal cavity extending from the face to the pharynx. Sinuses, air-filled cavities in the bones of the skull. Pharynx, the passage to the lungs (and stomach) in the front part of the neck below the chin and above the collarbone. Larynx, a cartilaginous structure at the top of the trachea aka the voice box. Trachea or the windpipe, a membranous tube that carries inhaled air from the larynx to the bronchi. Bronchi, two branches of trachea that lead to the lungs. The lungs Lungs Much like dogs, cats cool off by taking in larger amounts of air. When it all comes together. The system functions as a gas exchange mechanism between air and blood. Oxygen diffuses across lung membranes to the blood, which then carries it to he tissues. Carbon dioxide is taken by the blood an released into air by diffusion in lung membranes.