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Respiratory System

Ch. 16 Respiratory System

QuestionAnswer
The process of the atmosphere and body cells exchanging gases is called ________________. respiration
Warms incoming air Mucous Membrane
Traps particulate matter in the air Mucus
Prevents infection Mucus
Moistens air Mucous Membrane
Moves nasal secretions to pharynx Cilia
The pharynx is the cavity behind the mouth, extending from the ________________________ to the _____________________________. nasal cavity to the larynx
The portions of the larynx that prevent foreign objects from entering the trachea are the ______________. Glottis and epiglottis
The trachea is maintained in an open position by the ______________. Cartilaginous rings.
The smallest branches of the bronchial tree are the ___________ _______________. alveolar ducts
The serous membrane covering the lungs is the ___________. Visceral Pleura
The serous membrane covering the inner wall of the thoracic cavity is the _________________. parietal pleura
The right lung is larger than the left. T/F? True
The pressure in the thoracic cavity during inspiration is __________ than atmospheric pressure. Less
Inspiration occurs after the diaphragm _______________, thus ____________ the size of the thorax and ___________ the pressure within the thorax contracts, increasing, decreasing
The surface tension of the fluid in the alveoli is decreased by the secretion ________________________, which prevents collapse of the alveoli. Surfactant
The respiratory membrane consists of a single layer of epithelial cells and basement membrane between a(n) ______________ and ______________________. alveolus and capillary
The rate at which a gas diffuses from one area to another is determined by differences in __________________ in the two areas. pressure
The pressure of each gas within a mixture is known as its __________________. partial pressure
Oxygen is transported to cells by combining with ______________. hemoglobin
The largest amount of carbon dioxide is transported __________. as bicarbonate
Created by: n2biology
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