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The Respiratory System - W4
Terms in this set (35)
The process by which cells use oxygen to produce energy from food.
The act of bringing air into and out of the lungs and exchanging gases from this air.
An organ found in air-breathing vertebrates that exchanges oxygen and carbon dioxide with the blood.
Extensions of the body containing thin-walled blood vessels that allow for easy absorption of oxygen from the outside surface.
The part of an animal where gases are exchanged with the environment.
Process in which the epithelium bends outward enveloping the connective tissue.
Process in which cells turn back upon themselves to form a cavity.
Respiration through the skin.
In insects, a system of branched, air-filled tubes that extends throughout the body and carries oxygen directly to cells.
A special cell in insects that is located at the end of each tracheal branch and provides a moist interface for gas exchange.
An external opening of the tracheal system in an insect or arthropod, used in respiration.
Exchange of substances between fluids moving in opposite directions.
Arrangement in fish respiratory system where water going over the gills and blood in the gill filaments flows in opposite directions.
Tiny sacs, with walls only a single cell layer thick found at the end of the respiratory bronchiole tree. Alveoli are the site of gas exchange in the respiratory system.
The chamber of the nose lying behind the vestibule of the external nose.
Internal openings of the nasal cavity.
A passageway leading from behind the nasal cavity to the trachea.
The voice box; located in the top part of the trachea, underneath the epiglottis.
Air passageway that carries air to the lungs. Has cartilage rings to help keep the air passage open as air rushes in. Branches into right/left bronchus.
Airways in the lungs that lead from the trachea to the bronchioles.
Airways in the lungs that lead from the bronchi to the alveoli.
Branches of the respiratory bronchioles that lead directly to the alveoli.
The slitlike opening formed by the vocal folds in the larynx.
The portion of the tidal volume that does not reach the alveoli and thus does not participate in gas exchange.
The sites of gas exchange in bird lungs. They allow air to flow past the respiratory surface in just one direction.
The inner layer of pleura lying closer to the lung tissue.
The outer layer of pleura lying closer to the ribs and chest wall
The cavity between the lungs and the wall of the chest.
Large, flat muscle at the bottom of the chest cavity that helps with breathing.
The movement of air into the respiratory tract. Inspiration is an active process, requiring contraction of the diaphragm.
The movement of air out of the respiratory tract. Expiration is be passive (caused by relaxation of the diaphragm and elastic recoil of the lungs).
The form of hemoglobin without oxygen, the predominant protein in red blood cells.
Occurs in the blood when chloride enters the tissues to balance the bicarbonate ions diffusing out of the muscle tissues.
Compound resulting from combination of carbon dioxide and amino groups in hemoglobin.
Haemoglobin saturation curve
The percentage of haeme units in a haemoglobin molecule that contain bound oxygen.
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