0Name: ______Date: ______
Respiration Notes
Respiration:
Occurs when respiratory system moves ______between the ______environment and the ______
Respiratory system is a system of ______that permit air to flow ______and ______of lungs.
Nasal Cavity:
Air enters through ______and passes into______
It cleans, ______, and ______the air
It is lined with ______which secrete ______. The mucus is stored in ______until it can be ______.
Pharynx:
Where ______cavity and ______cavity meet
Trachea:
Also known as the ______, made of ______, lined with ______and ______
______materials are trapped in ______. Cilia move these back up to the ______for removal
Epiglottis:
The top of ______is protected by the ______
This keeps ______from entering ______
Larynx:
Also called the ______. At the top of the ______, it is used for ______
Bronchi:
______splits to form two ______. Each extends into one ______and each branches into ______
Bronchioles:
______branches off of the bronchi, which end in ______
Alveoli:
______and moist tiny ______, surrounded by ______
______from the air flows across the alveoli into the ______and ______flows from the capillaries into the ______
Diaphragm:
Large sheet of ______at the bottom of the ______
When the diaphragm ______it increases the area in your ______causing you to ______. When your diaphragm ______it decreases the area in your lungs pushing the air out (______)
Breathing Rate:
Breathing rate is controlled by the ______, which relies on the concentration of ______in the blood.
Your brain ______up contractions of the ______and ______when oxygen is ______(when carbon dioxide levels in your blood is too ______)
Respiratory System:
Name: ______Date: ______
Respiration Notes
Respiration:
Occurs when respiratory system moves gases between the external environment and the lungs.
Respiratory system is a system of passageways that permit air to flow into and out of lungs.
Nasal Cavity:
Air enters through nostrils and passes intonasal cavity.
It cleans, warms, and moistens the air
It is lined with glands which secrete mucus. The mucus is stored in sinusesuntil it can be swallowed.
Pharynx:
Where oral cavity and nasal cavity meet
Trachea:
Also known as the windpipe, Made of cartilage, lined with mucus and cilia
Microscopic materials are trapped in mucus. Cilia move these back up to the pharynx for removal
Epiglottis:
The top of trachea is protected by the epiglottis.
This keeps food from entering lungs
Larynx:
Also called the voice-box. At the top of the trachea, it is used for speech
Bronchi:
Trachea splits to form two tubes. Each extends into one lung and each branches into bronchioles
Bronchioles:
Smaller branches off of the bronchi, which end in alveoli
Alveoli:
Thin and moist tiny sacs, surrounded by capillaries
Oxygen from the air flows across the alveoli into the capillaries and carbon dioxide flows from the capillaries into the alveoli
Diaphragm:
Large sheet of muscle at the bottom of the rib cage
When the diaphragm contracts it increases the area in your lungs causing you to inhale
When your diaphragm relaxes it decreases the area in your lungs pushing the air out (exhale)
Breathing Rate:
Breathing rate is controlled by the brain, which relies on the concentration of carbon dioxide in the blood.
Your brain speeds up contractions of the ribs and diaphragm when oxygen is needed (when carbon dioxide levels in your blood is too high)
Respiratory System: