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Respiratory System

Science

Question	Answer
True or False: The air you breathe is part of the Earth's atmosphere, the blanket of gases that surrounds the earth.	True
What are two functions of the respiratory system?	1. Take in oxygen. 2. Release carbon dioxide and water.
What is respiration?	The process by which cells break down simple food molecules to release the energy they contain.
What is needed for energy-releasing chemical reactions that take place inside your cells?	Oxygen
True or False: Most of the air you breathe in goes back into the atmosphere when you exhale.	True
List three products of respiration.	1. Water 2. Carbon Dioxide 3. Energy
True or False: To a scientist, breathing and respiration mean the same thing.	False
Which of these organ systems make respiration possible? Circulatory system - reproductive system - respiratory system - digestive system	1. Circulatory System 2. Respiratory System 3. Digestive System
True or False: When you breathe in air, you also breathe in dust, pollen and microorganisms.	True
Complete a chart showing the Path of Air.	Do on seperate sheet of paper.
What does a sneeze do?	Launches out particals and bacteria.
What is another name for the pharynx?	Throat
Moistens the air and traps particles in the air.	Mucus
Openings in the nose through which air enters	Nostrils
Tiny hairlike extensions that sweep mucus into the throat.	Cilia
Spaces lined with cilia and mucus.	Nasal Cavities
What two body parts are connected to the Pharynx?	Nose and mouth
The walls of the trachea are made up of rings of ______ that strengthen the trachea and keep it open.	Cartalige
True or False: The cilia and mucus in the trachea sweep upward, moving the mucus toward the throat where it is swallowed out.	True
If food enters the trachea, a person can do what?	Choke
Which respiratory organs does air reach after the bronchi?	Lungs
True or False: Inside the lungs, each bronchus divides into smaller and smaller tubes.	True
What happens in the alveoli?	The movement of gases between air and blood.
What occurs during the process of gas exchange?	Air enters the alveolus-oxygen passes through the wall of the alveolus and then through the capillary wall into the blood.
Why can the lungs absorb a large amount of oxygen?	Because you have so many alveoli.
Give the path of air.	1. Nostrils 2. Pharynx 3. Trachea 4. Bronchi

Created by: Jon13

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