MT 103.1
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| What is the sequence of passage through which air passes through respiriatory system | Nasal cavities-pharynx-larynx-trachea-bronchus-bronchioles-aveoli
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| Windpipe | Trachea
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| nares | nostrils
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| the opening into the larynx is the? | glottis
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| adams appple | larynx
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| right lung is divied to how many lobes | three lobes
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| left is divided into how many lobes | Two lobes
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| Each lung is covered with? | pleural membrane
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| the plueral membrane that cover the lung | visceral pleura
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| Its floor is the strong dome-shaped muscle | diaphragm
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| the movement of air into and out of the lungs | pulmonary ventilation
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| expiration | exhalation breathing out
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| inspiration | inhalation breathing in
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| the two muscles that contract during inspiration | diaphragm, external intercostals
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| what happens during inhalation | diaphrag and intercostals muscles contract - volume of chest cavity increase- lungs expand -volume of lungs increases - air pressure descreases - air move into lungs
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| what happens during exhalation | diaohragm intercostals muscles relax- volume of cavity decreases - lungs recoil -lung volume decreases - pressure in aveoli increases - air rushes out of lung
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| the movement of molecules from a region of higher concentration to region of lowe rconcentration | diffusion
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| the body uses up about how uch of inhaled oxygen | one third of oxygen
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| how many time a day do we breath and how any pounds of air | 20,000 time a day... 35 pounds
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| seals off the larynx during swallowing | epiglottis
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| the process by which cells capture energy from nutrients | celluar respiration
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| the rate of respiration is mainly determined by | carbon dioxide concentration
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| normal breathing rate for huan adult | 12- 20 miniutes
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| attachments of the diaphragm | o-xphoid process 7-12 ribs L1-L3 I- central tendon
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| demensions of the trachea | 4-4.5 inches long, 1 inch in diameter
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| helps produce sound in the larynx | arytenoid cartilage
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| forms the adams apple | thyroid cartilage
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| carbon dioxide is transported mainly in the form of | bicarbonate ions
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