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Respiratory System Parts & Function
Nasal Cavity / Nose Organ where air enters the respiratory systemNasal Nares entrance to nasal cavities Mucous lined Cavities Moisten/Warm Air Smell
Pharynx Tube that leads air from nose/mouth. 3 sections Nasopharynxbehind nasal cavities oropharynx back of mouth laryngopharynx bottom of throat. Air/Food share
Larynx Voice Box Below the Pharynx. Made of cartilage rings.Vibrate with air to create sounds Adam's apple
Epiglottis Cartilage flap that covers the larynx opening when swallowing food or water. Directs food to esophagus Prevents them from entering lungs.
Trachea Windpipe Extends from larynx to bronchi.Made of sturdy cartilage
Bronchi / Bronchial TreeBranches off the Trachea. Direct air into lungs. Primary first branch that leads into the lung Secondary are those that branch off primary, smaller. There are 10 Tertiary Bonchi
Lungs Large organs where gas exchange is facilitated.Divided up into 10 sub-compartments called Lobes, Right is smaller due to heart
Parietal Pleura The Pleural lining that covers the inside of the chest wall/ribs
Pleural Space The space between the Parietal and Visceral PleuraFilled with a small amount of fluid Reduce Friction
Visceral Pleura The Pleural Lining that covers the lungs
Diaphragm Smooth Muscle Causes Inspiration Dome Shaped."engine" for the respiratory System. Causes Inspiration Dome Shaped. Separates Thorasic/Abdominal Cavity. Flattens w/ Inspiration
Primary Bronchi Right and Left Branches off the TracheaDirect Air into the Right and Left Lungs
Bronchioles Another Name for Tertiary BronchiThey Branch off into the different lobes of the lungs
Respiratory BronchioleTerminal Bronchiole Directs Air into the Alveolar Ducts/Sacs
Alveolar Ducts Smaller tubes that branch off the bronchioles in the lungs. Direct gasses into/out of the alveolar sac
Alveoli / Alveolar Sac Alveolar Sac AlveoliA collection of smaller sacs Bunch of Grapes Alveoli Small Sac within the “bunch” Lined with Capillaries Gas Exchange
From: Respiratory System From:
The passage of air from nose/mouth to lungs
Structure of the Respiratory system
Respiratory System Unit 4.
Respiratory System Chapter 16.
The Respiratory System
Respiratory System. Upper Respiratory System –Nose –Nasal cavity –Pharynx Lower Respiratory System –Larynx –Trachea –Bronchi –Lungs.
Chapter 17 Key Terms 1 AlveoliLarynx TracheaSurfactant RespirationEpiglottis GlottisPleural Cavity InspirationBronchi BronchiolesInternal Respiration Partial.
NOSTRIL Either one of the two external openings to the nasal cavity in the nose; Conducts air into the hollow nasal cavity; What is rhinoplasty? What is.
Respiratory Structures Respiration: means to ventilate lungs, and exchange gases Respiration system: two parts the conducting and respiratory division.
2.05 Remember the structures of the respiratory system
RESPIRATORY SYSTEM LUNGS & AIR PASSAGES. Function: n TAKE IN OXYGEN – GAS NEEDED BY ALL BODY CELLS n REMOVING CARBON DIOXIDE – GAS THAT IS A WASTE PRODUCT.
Key terms. Having to do with the sinus Sinus ◦ Air-filled cavity within a bone that is lined with mucous membrane that makes mucus ◦ Functions of.
We need a respiratory system for gas exchange and to provide O2 for cellular respiration!
RESPIRATORY ORGANS It includes: Nose. Pharynx. Larynx. Trachea.
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