This is the double pump that pushes blood into and through the blood vessels
What is the heart?
When a person's activity level increases, this is what happens to their heart rate
What is it increases?
These are the main structures of the respiratory system
What are the lungs?
The nose and mouth serve this function in the respiratory system
What is taking in/expelling air?
After a cut, clotting of the blood occurs thanks to these
What are platelets?
Blood is carried away from the heart through these blood vessels
What are arteries?
The human body needs this gas that is carried through the bloodstream
What is oxygen?
The windpipe is also known by this other name
What is the trachea?
This waste gas is expelled when you exhale
What is carbon dioxide?
Spasms of the diaphragm cause this annoying condition
What are hiccups?
These are the three types of blood vessels
What are arteries, veins, and capillaries?
Infections like viruses are attacked by these cells in the blood
What are white blood cells (leukocytes)?
The windpipe splits into these tubes that carry air to the lungs
What are bronchi?
Air is expelled from the body by the contraction of this muscle
What is the diaphragm?
Blood cells and platelets float in this substance in the blood
What is plasma?
These small flaps in the heart keep blood from flowing the wrong way through its chambers
What are valves?
Blood is pumped from the heart to the lungs for this purpose
What is getting oxygen (becoming oxygenated)?
These are the air-filled sacs where oxygen and carbon dioxide are exchanged
What are the alveoli?
Speech is possible because air vibrates the vocal chords that are stretched across the opening of the voice box, also known as this
What is larynx?
Another name for the throat
What is pharynx?
Blood is carried to and from this organ through the pulmonary artery and vein
What are the lungs?
Your heart beats about this number of times every day
What is 100,000?
These are the structures between the bronchi and the alveoli
What are the bronchioles?
The exchange of oxygen and carbon dioxide in the lungs is called this
What is respiration?
These are the names of the 4 chambers of the heart
What are left and right atrium/atria and left and right ventricle(s)?