Respiratory System BIOL0004-A
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This 2 page Class Notes was uploaded by Alexis Bussiere on Thursday February 4, 2016. The Class Notes belongs to BIOL0004-A at University of Vermont taught by John J Mitchell in Spring 2016. Since its upload, it has received 24 views. For similar materials see the human body in Biological Sciences at University of Vermont.
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Date Created: 02/04/16
Respiratory System Thursday, February 4, 8:25 AM 3 components of the respiratory system 1. Accessory--input to the body (nasal/nose) 2. Pulmonary--associated with pulmonary orga- -lungs 3. Thoracic--ribs, muscles, diaphragm that surrounds the lungs Nose & nasal cavity 1. Moistureadded to air 2. Warm the air--blood vessel burns fuel & warms up bl--doesn't freeze moisture inside your lungs 3. Clean-- get rid of bacteria so it doesn't get -smucous balls on surface grab bacteria (e.g. fly paper) then the cell pushes out bacteria by pumping it out Pulmonary • Alveoli--grape like sacs, hollow, increase surface, allow oxygen and carbon dioxide to move between your lungs & bloodstream • Type 1 cell--Alveolar cell and nucleus-- looks for stray bacteria, eats and destroy the bacteri-- if they can't eat the bacteria (e.g. macrophages) the cell makes way to throat so you can swallow it down in your stomach Thoracic (lungs) • Contracts diaphragm • Muscles in ribs get expanded up/o--te.g. blowing up a balloon)-- inhaling;; active • Contracting lungs--lungs go back to nor-l-exhaling;; passive • Not all lungs work the same (e.g. frogs gulp & swallow) • Tidal breathing-- breathing in &out about 500mL & 12 breathes per minute = 6L of ai-r-150mL normally doesn’t get used • Increasing rate of breathing or increasing amount of air you can use all of the air-- taking in 8L of air • Taking bigger breathes increase air to 10L Blood gas transport 02 • Dissolved (1.5%) • Bound to hemoglobin (98.5%) C02 Blood gas transport 02 • Dissolved (1.5%) • Bound to hemoglobin (98.5%) C02 • Dissolved (7%) • Bound to hemoglobin (23%) • Chemically reacted (70%)
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