Anatomy Basics
This tube is also called the windpipe and directs air toward the lungs.
What is the trachea?
This dome-shaped muscle located below the lungs helps with inhaling and exhaling.
What is the diaphraghm?
Flaps of tissue that vibrate to make sound.
What are the vocal cords?
These protect your lungs.
What are ribs?
The condition that is caused by bronchi being swollen due to an infection.
What is Bronchitis?
These two spongy organs expand and retract to allow oxygen into the body.
What are the lungs?
This part of the throat is a passageway for both air and food.
What is the pharynx?
The box that contains the vocal cords.
What is the larynx?
Nose - Pharynx - trachea - bronchi - bronchioles - alveoli - capillaries
Holes in our head that make our head lighter and continue the warming and moisturizing of the air we breathe in.
What are Sinus Cavities?
These are the two main branches that split from the trachea and lead into each lung.
What are the bronchi?
These muscles contract to help expand the chest when inhaling.
What are rib muscles? intercostal muscles
How many alveoli do we have in each lung:
a) 48 000
b) 480 000
c) 480 000 000
480 000 000
What's the purpose of mucous in our nasal passage?
It helps keep dust and other bad things in the air, out of our lungs.
Why does our left lung have 2 lobes when our right lung has 3?
Our heart is a little to the left and takes up the space of the 3rd lobe.
These small tubes branch off the bronchi and help carry air deeper into the lungs.
What are bronchioles?
This flap of tissue closes over the airway when swallowing.
What is the epiglottis?
Nasal ___________________ in our nose, cause the air we breathe in to travel through a series of twists and turns, in order to clean, moisten and warm it up before it enters our lungs.
What are Nasal Conchae?
Why is it more comfortable to breathe through your nose?
This path allows the air to be filtered, humidified, and warmed, making it gentler on the lungs.
What is the purpose of the cartilaginous rings around our trachea?
They keep it from collapsing. They keep it open at all times so air can continuously pass through.
These tiny air sacs in the lungs transfer oxygen and carbon dioxide to the blood.
What are Alveoli?
This system works closely with the respiratory system to distribute oxygen to cells.
What is the circulatory system?
The motorized whips at the back of our nose. What is their purpose?
Cilia. They move mucous with particles stuck to it to our mouth, where it can be swallowed and destroyed by our stomach acid.
This condition occurs when the inner lining of the bronchioles swells and secretes mucous making it difficult to breathe.
What is Asthma?
How are alveoli adapted for gas exchange?
Large surface area that allows more gas to be exchanged at once.
Thin walls that allow for a short diffusion pathway.
Moist walls that help gases pass/diffuse across the membrane.
Permeable walls that allow gases to pass/diffuse through them.
Large blood supply that maintains a constant concentration gradient.
Large diffusion gradient that allows oxygen to pass/diffuse from the lungs into the blood and carbon dioxide to pass/diffuse from the blood into the lungs.