Anatomy
What body cavity contains the lungs and heart?
Thoracic Cavity
What are air filled sacs?
Alveoli
What is the pathway of organs from the nose to the lungs?
Respiratory System
What is also known as the windpipe?
Trachea
What percent of oxygen do you inhale?
21%
Which organ is responsible for pulling air in and pushing air out from the lungs?
Diaphrahm
What divides the nasal cavity into two separate sides?
Nasal Septum
why shouldn’t you eat and talk at the same time?
The food or water will then travel down your trachea instead of going to your esophagus. This would lead to choking or inhaling fluid your lungs.
Is the diaphragm part of the respiratory tract?
NO
What is the door at the top of the trachea?
epiglottis
What is a long tube with rings of cartilage that leads to the lungs.
Trachea
What is inside of the pharynx?
Tonsils
What happens if the epiglottis does not work properly?
You will choke
What holds the vocal cords?
larynx
What is immediately after the trachea?
Bronchi
What is a flap of cartilage that is closed when a person is swallowing food or water. This prevents food or water from going to the lungs instead of the stomach.
Epiglottis
What are alveoli covered with that allows the exchange of gases between the air and bloodstream?
capillaries
What happens when the diaphragm contracts?
It pulls down and causes the thoracic cavity to expand, which draws air into the lungs
Starting with the alveoli, what will be the pathway of organs as you exit the respiratory tract?
Alveoli → bronchioles → bronchi → trachea → larynx → epiglottis → pharynx → nasal cavity → nose
What is the exact site where CO2 exits the bloodstream and enters the air?
Alveoli
Why do the alveoli have a large surface area?
The alveoli are the site of external respiration (where gases pass between the air and the bloodstream). More surface area means more oxygen absorbed into the bloodstream from the outside atmosphere._
What is laryngomalacia?
the larynx and epiglottis are soft.
What happens when the diaphragm relaxes?
It raises up and causes the thoracic cavity to shrink, which forces air out of the lungs
What is a process by which gases exchange between the air and the bloodstream. Each lung has about 300 million alveoli.
Expiratory Respiration
What is the healthier location to breathe in through?
Nose