Your body couldn’t breathe without this system. Which one is it?
Respiratory System
What’s the smallest bone in the body?
Stirrup
The three major types of muscles in the body are:
Smooth muscle, cardiac muscle, and skeletal muscle
How many chambers does the heart have?
Four
How long is an adult’s small intestine?
22 feet
The respiratory system is made up of the trachea, the lungs, and the:
Diaphragm
Bones meet at:
Joints
The muscle that pumps blood throughout your body is:
Cardiac muscle
The movement of blood through the heart and body is called:
Circulation
The digestive process starts in the:
Mouth
When you breathe in air, you bring oxygen into your lungs and blow out:
Carbon dioxide
How many bones does an adult human have?
206
Which muscle helps move your shoulders?
Deltoid muscle
The beating sound your heart makes comes from:
The beating sound your heart makes comes from:
The liver’s role is to:
Remove harmful substances from the blood
When you inhale, your lungs:
Inflate
The bones in your spine are called:
Vertebrae
Which type of muscle is found in your digestive system?
Smooth muscle
The atria are the “upstairs” chambers of the heart and these parts are the “downstairs” chambers:
Ventricles
When they reach the stomach, mashed-up food particles mix with:
Gastric juices
What is the name of the tiny air sacs in your lungs?
Alveoli
The patella is located in the:
Knee
What connects bones and muscles together?
Tendons
What parts act like doors that control blood flow in the heart?
Valves
What tube moves food from the back of your throat to the stomach?
Esophagus