Respiratory System #1
To breathe in air.
inhale
Automatic breathing controlled by your brain.
involuntary breathing
The __________ is the system God created to enable us to breathe.
respiratory system
The upper chamber on each side of the heart is called a(n) __________.
atrium
__________ carry blood from the heart to all the parts of the body.
arteries
To breathe out carbon dioxide.
exhale
Breathing that takes place when you think about breathing and control it.
voluntary breathing
The __________ is a transportation system for your blood.
circulatory system
The lower chamber on each side of the heart is called a(n) __________.
ventricle
__________ carry the blood back to the heart.
veins
The __________ is a strong, curved muscle attached below the lungs to the lower ribs and backbone.
diaphragm
Tiny hairlike structures called __________ line your nasal passages as well as most of the respiratory system.
cilia
A doctor can listen to your heart beating with a __________ to determine if your heart is functioning normally.
stethoscope
The heart has a small flap of tissue called a __________ between the atrium and ventricle on each side and where the blood vessels leave the ventricles. It opens to let blood flow, but then closes to prevent the blood from flowing backwards.
valve
__________ are the small blood vessels that connect the arteries and veins.
capillaries
Your windpipe. One of 2 tubes leading from the pharynx.
trachea
Food pipe. One of 2 tubes leading from the pharynx.
esophagus
4 Main types of blood:
A, B, AB, O
__________ is the liquid part of blood. It is a clear, yellowish liquid that is mostly water. It can dissolve many substances, such as proteins, sugars, and nutrients.
plasma
__________ are tiny blood cells that carry oxygen to all part of the body.
red blood cells
A flap of tissue that closes over your trachea when you swallow food.
epiglottis
Voice box. Located at the top of your trachea. Made up of 9 pieces of cartilage and many small muscles.
larynx
The 3 very important jobs of our blood.
transport substances, regulate temperature, defend the body
__________ are small fragments of cells. These fragments help form blood clots. The blood clot helps plug broken blood vessels after injury.
platelets
__________ help the body fight diseases and infections.
white blood cells