Any kind of movement that causes your body to use energy is called what?
Physical Activity
This organ is the main part of the cardiovascular system and pumps blood throughout your body.
heart
This organ is the main part of the respiratory system and helps you breathe in oxygen and breathe out carbon dioxide.
lungs
These muscles move on their own without you thinking about it — like your heart
involuntary muscles
An adult human body has about this many bones.
206
This type of exercise uses lots of oxygen and is done for a long period of time, like running or swimming.
Aerobic exercise
List the two types of blood vessels
arteries and vessels
What do you breathe out when you exhale?
carbon dioxide
This type of muscle moves the bones in your body and is controlled when you choose to move. (muscles connected to your bones)
skeletal muscle
This strong bone protects your brain.
skull or cranium
This term refers to the ratio of fat, muscle, bone, and water that make up your body.
Body composition
These blood vessels carry blood back to the heart after it has delivered oxygen throughout the body.
Veins
This is where air enters your body and gets warmed, moistened, and filtered.
nose
This type of muscle is found inside organs like your stomach and works without you thinking about it.
Smooth muscle
This is the bone found in your upper leg — it’s also the longest bone in your body.
Femur
The ideal number of heartbeats per minute you should reach during exercise for the best workout benefits.
Target heart rate
Your heart is roughly the same size as this part of your body.
your fist
This muscle sits behind your lungs and it flattens so your lungs can fill with air.
diaphram
When a muscle is stretched too far or slightly torn, it causes this common injury.
a strain
This bone protects your knee joint and is often called your kneecap.
patella
What are the four pillars of Fitness? (you need all FOUR to get this correct)
These blood vessels carry blood away from the heart to the rest of your body.
Arteries
Also called the “voice box,” this part helps you speak and make sounds.
larynx
How to muscles work? (There are two answers and they are opposites)
contract and relax
These tough bands connect bones to other bones and keep joints stable.
ligaments