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Respiratory System

QuestionAnswer
Function of the Respiratory System Bring in Oxygen, remove Carbon Dioxide
Supply of Oxygen exists in the body at any time 4-6 minutes
Major muscles used in breathing are: Diaphragm, Intercostals
Air enters through the ____ and into the nasal cavity Nostrils(Nares)
Wall of cartilage that divides the nose into 2 equal sections Nasal Septum
Nasal cavity contains ____ and mucus, which have the function of ________ Cilia, Filtration
Hollow spaces in the skull that connect to and surround the nasal cavity Sinuses. They warm, moisturize and filter inspired air
Pharynx Passage way for both food and air
Larynx Voice box; Contains vocal chords
Thyroid Cartilage Largest cartilage that protects and supports the Larynx
Glottis Space between the vocal chords
Epiglottis FLap like fibrocartilage above the Glottis; Closes when you swallow to prevent food from going down your airway
Vocal Chord Two bands of tissue which stretch horizontally across the larynx
Phonation Produce sound
Trachea Connects Larynx and Bronchi
The nostrils, larynx and trachea are all made primarily of ________ Cartilage
Bronchi 2 main branches off the trachea; These airways enter the lungs
Bronchioles Very tiny bronchi that bring air to alveoli
Alveoli Air sacs found in clusters at the end of the Bronchiole. Where the exchange of Oxygen and Carbon Dioxide take place
Surfactant a substance made of six lipids and four proteins that is produced in the lungs. Reduces the surface tension of fluid in the lungs
Right lung has __ lobes and Left lung has __ lobes 3,2
Pleura Thin coverings that protect and cushion the lungs. Reduces friction and helps the lungs expands during ventilation
Ventilation Movement of air in and out of the lungs
Respiration The exchange of gas that takes place
Inspiration Diaphragm contracts and flattens downward and the intercostals contracts, lifting the ribs up and out.
Expiration Diaphragm relaxes and moves back up and the intercostals relax, moving the ribs down and in
External Respiration Exchange of Oxygen and Carbon Dioxide between the lungs and the bloodstream
Internal Respiration Exchange of Oxygen and Carbon Dioxide between the tissue cells and the bloodstream
Cellular Respiration When the cells use the Oxygen and nutrients to produce energy, water, and Carbon Dioxide
What happens to the Carbon Dioxide during Cellular Respiration? It leaves the cells and enters the blood stream
Oxygenation The process by which the oxygen molecules are loaded onto the hemoglobin.
Room air The air in the atmosphere and is made up of 21% Oxygen
Created by: ChelseaChipman
 

 



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