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Definition
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Term
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Definition
| -hilum-region where pulmonary vessels and bronchi pass into lung tissue |
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Definition
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Definition
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Definition
-concave
-fits over convex dome of diaphragm |
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Term
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Definition
-double walled sac
-encloses and protects lungs
-composed of serous membrane that secretes pleural fluid |
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Term
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Definition
| -adheres directly to surface of lung |
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Definition
| lines walls of thoracic cavity |
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Definition
| space between visceral and parietal which contains pleural fluid |
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Definition
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Definition
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Definition
| lung rib 10 pleura rib 12 |
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Term
| intercostal space for puncture |
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Definition
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Term
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Definition
-functional units of lung
-350 million alveoli per lung
-type I and II cells
-macrophages
-capillaries |
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Term
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Definition
| simple squamous epithelial |
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Term
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Definition
| produce detergent like sufactant prevents sticking |
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Definition
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Term
| bronchopulmonary segments supplied by |
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Definition
tertiary bronchi
pulmonary arterioles/venules |
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Term
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Definition
-thin, dome shaped sheet of skeletal muscle
-separates thoracic and abdominal cavities
-supplied by phrenic nerve
-contains openings for aorta, IVC, and esophagus |
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Term
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Definition
| internal and external layers of skeletal muscles which help alter size of thoracic cavity |
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Term
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Definition
| nervous system and peripheral chemoreceptors |
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Term
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Definition
-medulla/pons are respiratory centers
-hypothalamus has input
-motor neurons contract diaphragm/intercostal muscles
-baroreceptors |
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Term
| peripheral chemoreceptors |
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Definition
carotid body and aortic bodies respond to changes in pH via CO2 levels
-CN IX and X transmit message to brainstem |
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Term
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Definition
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Term
| pressure can be altered by changing the size of the |
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Definition
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Term
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Definition
-diaphragm contracts- lowers
-intercostal muscles contract-elevate ribs
-volume of throacic cavity increases, pressure decreases, air fills lungs |
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Term
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Definition
| abdominal muscles contract and push organs upward to decrease size of thoracic cavity |
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