how many divisions does the right lung have?
how any divisions does the left lung have?
which lung is larger?
the right lung
Where are the lungs located?
inside the thoracic cavity, bounded by the rib cage and diaphragm
What does the lining of the entire cavity pleura do?
a membrane that secretes a mucus that decreases friction from the movement of the lungs during breathing.
what is the pathway of air into the body?
1) into mouth and nose
the little hairs in your nose and naval cavity can be described as:
air filters because they collect unwanted particles
what happens in the naval cavity?
the mucus membranes warm and moisten the air, to prevent damage to the delicate tissue in your lungs
What is the Cilia and where is it?
the Cilia in lining the naval cavity. It traps particles that are inhaled and they are eventually swept to the throat and swallowed.
Where is the pharynx and what is it used for?
it is in the back of the mouth, and it is a passageway for both food and air
what is the epiglottis?
The epiglottis is a piece of skin that closes over the trachia when you eat to prevent your food going into your lungs. That's why when you drink something too fast it "goes down the wrong tube" you were too fast for the epiglottis to shut off the trachia
where is the trachea and what is it's function?
its is near the throat and is an air passage lined with ciliated walls to sweap all the bad particles out and back into the throat
what is the larynx?
it is at the end of the trachea and it is the control of your voice. Vocal cords are spread over it.
What determines the tone or sound of your voice?
the amount of tension you put on your vocal cords and the amount of air going through them. The more tension and air used the higher your voice will sound.
where is the Bronchi and what is the function?
the bottom of the trachea. It is branched in two, it is another "filter"
What are bronchioles ?
they are small tubes off of the bronchus and they are filtered with cilia. They form clusters of alveoli.
What is alveoli and where is it located?
it is at the bottom of bronchioles and they are tiny air sacs.
What surrounds each alveoli?
how is oxygen exchanged between blood?
in the lungs oxygen is exchanged between the alveoli and the blood in the capillaries. the carbon dioxide is given to the alveoli.
relating to or affecting the lungs
carries deoxygenated blood to the lungs from the heart
carries oxygenated blood from the lungs to the heart
a measuring instrument for measuring the vital capacity of the lungs
the maximum amount of air that can be exhaled after a maximum inhalation (usually tested with a spirometer)
amount of air exhaled after a normal inspiration
is an imflamation making it hard to breath.