Brain & Central Nervous System
This part of the body is the main control center, giving orders to al areas of your body.
What is Brain?
This is the hardest working muscle in the body.
What is the heart?
You have two of these organs which inflate and deflate with every breath.
What are the lungs?
There are 206 of these in the human body.
What are bones?
This organ looks like a football when it is full and makes strong acids to help break down food.
What is the stomach?
Your brain weighs about this amount when you are full grown.
What is three pounds?
Your heart rate can be measured by feeling this on your wrist.
What is your pulse? or radial pulse
This part of your respiratory system humidifies the air making it wet and warm before the air goes into your lungs.
What is the nose?
These bones protect the spinal cord.
What are the vertebrae (or spinal column or backbone)?
This is the largest internal organ of your body. It stores sugar, vitamins, minerals, and extra reserves of blood.
What is the liver?
This main nerve pathway sends messages to and from the brain.
What is the spinal cord?
Approximate number of times a person's heart beats per minute.
What is 60 to 100 times?
The name of the waste gas that you breathe out because it is not needed by the body.
What is carbon dioxide?
These strong bands of tissue connect bone to bone.
What are ligaments?
This organ makes insulin, which helps control the amount of sugar in your blood.
What is the pancreas?
Your brain cells are very sensitive to this gas and without it, they will begin to die.
What is oxygen?
You have 60,000 miles of these tubes to carry blood to and from all parts of your body.
What are the blood vessels?
These tubes branch off from the trachea and lead into each lung.
What are the bronchi?
This jelly-like substance is found in the center of some long bones and helps make new red blood cells.
What is bone marrow?
These organs are known as the washing machines for our bodies because they keep the blood clean.
What are the kidneys?
This is the largest part of the brain, and it is responsible for your intelligence.
What is the cerebellum?
These blood vessels carry blood back to the heart and lungs to receive oxygen.
What are veins?
Millions of these tiny air sacs are located inside the lungs.
What are the alveoli?
You were about this old in the womb when your cardiac muscle, or heart, started beating.
What is one month?
This small, muscular organ is like a strong balloon that stretches to hold the liquid waste in our bodies.
What is the bladder?