front 1 what does the respiratory system contain? | back 1
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front 2 upper respiratory tract contains | back 2
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front 3 lower respiratory tract | back 3
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front 4 nasal cavities | back 4 separated into right and left halves by a nasal septum |
front 5 the pharynx includes three parts | back 5
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front 6 thyroid cartliage | back 6 largest of the cartilaginous structures |
front 7 epiglottis | back 7 located at the top of the larynx, acts as a flap, covers the opening of the trachea during eating so that the food doesn't enter the lungs |
front 8 the space between the vocal cords | back 8 glottis |
front 9 false vocal cords | back 9 do not produce sounds |
front 10 true vocal cords | back 10 produce sound, air slowing, air flowing from the lungs through the glottis during exhalation |
front 11 windpipe | back 11 tube 4 to 5 inches in length and 1 inch in diameter |
front 12 carina | back 12 point where the trachea splits at the manubriosternal junction ( where the manubrium of the sternum meets the sternal body) |
front 13 tracheostomy | back 13 tube that bypasses the obstruction and allows air to flow through the tube into the lungs |
front 14 bronchial tree consists of | back 14
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front 15 primary bronchi | back 15 enters the lungs at a region called the hilus |
front 16 left bronchus | back 16 narrower because the heart lies to the left side of chest |
front 17 right bronchus | back 17 shorter and wider and extends downward in a vertical direction |
front 18 bronchioles | back 18 regulate the flow of air to the alveoli |
front 19 alveoli | back 19 small grape like structures, tiny air sacs that form at the end of the respiratory passages |
front 20 alveoli function | back 20 to exchange oxygen and carbon dioxide across the alveolar- pulmonary capillary membrane |
front 21 pleura | back 21 lining of the inner chest wall, continuous serous membrane |
front 22 tendency of the lungs to collapse is due to two factors: | back 22
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front 23 surfactant | back 23 decreases surface tension |
front 24 negative intrapleural pressure | back 24 remains negative when no holes exist in the chest wall |
front 25 respiration includes | back 25
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front 26 respiratory cycle | back 26 one inhalation and one exhalation |
front 27 anatomical dead space | back 27 some air that you inhale never reaches the alveoli, it is not available for gas exchange |
front 28 normal breathing | back 28 rhythmic and involuntary |
front 29 medullary respiratory control center | back 29 main control center for breathing, located in the medulla, sets the basic breathing rhythm |
front 30 phrenic nerve | back 30 nerve for the diaphragm |
front 31 the exchange of gases occurs at two sites | back 31 the lungs and the cells |
front 32 three conditions make alveoli suited for exchange | back 32
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front 33 functions of digestive system | back 33
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front 34 accessory organs of digestive system include | back 34
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front 35 digestion | back 35 process by which food is broken down into smaller particles suitable for absorption |
front 36 two types of digestion | back 36
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front 37 the walls of the digestive tract has 4 layers | back 37
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front 38 mouth AKA oral cavity | back 38 beginning of digestive tract contains: teeth- tongue- salivary glands |
front 39 teeth names | back 39
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front 40 the tongue has two structures | back 40
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front 41 parotid glands | back 41 largest; lies below and anterior to the ears |
front 42 submandibular glands | back 42 located in the floor of mouth |
front 43 sublingual glands | back 43 located under the tongue and are the smallest |
front 44 uvula | back 44 a v-shaped piece of soft tissue that hangs down from the upper back region of the mouth and aids in swallowing |
front 45 pharynx AKA throat | back 45 involved in swallowing by reflex action called delgtuiotn |
front 46 esophagus | back 46 tube-like structure that carries the food from the pharynx to the stomach |
front 47 two sphincters in esophagus | back 47
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front 48 stomach performs 5 functions | back 48
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front 49 peristalsis | back 49 moves the propels the food toward the pylorus |
front 50 small intestine | back 50
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front 51 small intestine has three parts | back 51
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front 52 most digestion and absorption occurs in where? | back 52 duodenum |
front 53 large intestine has 4 parts | back 53
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front 54 accessory digestive organs | back 54 liver gallbladder pancreas |
front 55 phagocytsis | back 55 the kupffer cells can phagocytose bacteria and other substances within the liver |
front 56 hepatic portal system | back 56
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front 57 bile | back 57 green-yellow secretion produced by the liver and stored in the gallbladder |
front 58 biliary tree | back 58 the ducts that connect the liver, gallbladder, pancreas and duodenum |
front 59 gallbladder | back 59
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front 60 alkaline substances | back 60 rich in bicarbonate, neutralize the highly acidic chyme coming out of the stomach and entering the duodenum |
front 61 primary role of the digestive system | back 61 the breaking down of food into particles suitable for absorption |
front 62 mechanical digestion occurs | back 62 chewing in the mouth and mixing and churning activities of muscles in the digestive organs |
front 63 chemical digestion | back 63 refers to a change in the chemical composition of the food molecule |