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Alveoli Microscopic air sacs in the lungs.
Bronchi Two main branches of the trachea; air tubes to and from the lungs.
Bronchioles Small branches of the bronchi; carry air in the lungs.
Cellular Respiration Respiration on a cellular level.
Cilia Hairlike projections.
Epiglottis Leaf-shaped structure that closes over the larynx during swallowing.
Expiration The expulsion of air from the lungs; breathing out air.
External Respiration The exchange of oxygen and carbon dioxide between the lungs and bloodstream.
Inspiration Breathing in taking air into the lungs.
Internal Respiration The exchange of carbon dioxide and oxygen between the tissue cells and the bloodstream.
Larynx Voice box
Lungs Organs of respiration located in the thoracic cavity.
Nasal Cavity Space between the cranium and the roof of the mouth.
Nasal Septum Bony and cartilaginous partition that separates the nasal cavity into two sections.
Nose The projections in the center of the face; the organ for smelling and breathing.
Pharynx The throat.
Pleura A serous membrane that covers the lungs and lines the thoracic cavity.
Respiration The process of taking in oxygen (inspiration) and expelling carbon dioxide (expiration) by way of the lungs and air passages.
Respiratiory System Consists of the lungs and air passages; responsible for taking in oxygen and removing carbon dioxide.
Sinuses Cavities or air spaces in bones.
Trachea Windpipe; air tube from the larynx to the bronchi.
Ventilation Process of breathing.
Created by: paddronen



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