Respiratory System Organs
This part of the throat acts as a meeting point where the airways from the nose and mouth join together.
Pharynx
The gas all living things need to metabolize and stay alive.
Oxygen
These blood vessels are the smallest and thinnest.
Capillaries
To push blood down to the toes and back up to the head, the heart must pump hard to fight against this force.
Gravity
A group of organs that work together to perform a specific function.
System
What is the name of the tinty hairs that clean the air entering through the nose.
Cilia
The waste gas that must be eliminated from the body when we breathe out, because it can be toxic.
Carbon Dioxide
These blood vessel carry blood back to the heart.
Veins
"Red blood" carries oxygen to the body, but ”blue blood" travels back to the heart because _____.
It is empty of oxygen and is carrying carbon dioxide.
Similar cells working together form this.
Tissues
The large muscle that moves up and down to help us breathe.
Diaphragm
The sticky substance secreted in your nasal cavity that protects your lungs from contamination.
Mucus
The heart is separated into four chambers; these are the two upper chambers.
Atria
When blood is in the capillaries, it gives _____ to cells and picks up _____.
Gives oxygen and picks up waste product (CO2)
The main job of this system is to bring oxygen into the body and push carbon dioxide out.
Respiratory System
Inside the lungs, the bronchi divide into these smaller branches that end in air sacs.
Bronchiole
During this process, the diaphragm moves down, the ribs expand so the chest grows larger, and air flows in the lungs.
Inhalation
The heart is made of this type of muscle.
Cardiac muscle
This specific cycle describes the blood's journey from the heart to the lungs to pick up oxygen and then back to the heart.
Pulmonary Circulation
The main job of this system is to transport blood, with oxygen and nutrients, to every part of the body.
Cardiovascular System
This is a “door” that covers the windpipe and helps keep food and water from entering the lungs.
Epiglotis
Name two things that nose hairs (cilia) do.
Prevent dust from entering the lungs, and trap bacteria.
Explain the main function of the heart.
To pump blood to deliver a continuous supply of oxygen and other nutrients to the body.
This specific cycle carries oxygen-rich blood away from the heart to deliver it to all the tissues in the rest of the body.
Systemic Circulation
This process involves turning food and oxygen into the energy required to grow, reproduce, and stay alive.
Metabolism