Structure and Movement
This body system acts as the framework of your body and includes all of your bones.
What is the skeletal system?
This is the muscular tube that connects your mouth to your stomach.
What is the esophagus?
This is the main gas that you breathe in to keep your cells alive.
What is oxygen?
This organ acts as the body's control center and is the main component of the nervous system.
What is the brain?
These microscopic organisms, which include bacteria and viruses, can invade your body and cause disease.
What are germs (or pathogens)?
This is the body's largest organ and is the main part of the integumentary system,
What is the skin?
These two bean-shaped organs act as filters for your blood and produce urine.
What are the kidneys?
This muscular organ is the center of the circulatory system and pumps blood throughout your body.
What is the heart?
The endocrine system uses these chemical messengers, which travel through your blood to control growth, development, and mood.
What are hormones?
Washing these with soap and water for at least 20 seconds is one of the best ways to prevent the spread of disease.
What are your hands?
This specific type of involuntary muscle is found only in your heart.
What is cardiac muscle?
Even though it is named "small," this long digestive organ is where most of the nutrients from your food are absorbed into your blood.
What is the small intestine?
These are the microscopic air sacs inside your lungs where oxygen and carbon dioxide are traded.
What are alveoli?
This is the scientific name for a nerve cell, which sends electrical signals throughout your body.
What is a neuron?
These are the specific cells in your bloodstream that act as your body's soldiers to fight off infections.
What are white blood cells?
When you are cold, this system contracts to create friction and keep you warm, causing you to shiver.
What is the muscular system?
After you eat a snack, this system breaks the food down both mechanically and chemically into nutrients.
What is the digestive system?
During a race, the respiratory system brings in oxygen, but this system is responsible for transporting that oxygen to your cells so ATP can be made for energy.
What is the circulatory system?
When an embarrassing situation occurs, such as tripping in front of the class, this system responds by causing your heart rate to speed up.
What is the nervous system?
This is a substance, usually given as a shot, that trains your immune system to recognize and fight a disease before you actually get sick.
What is a vaccine?
The immune system works closely with this system, because white blood cells are actually created inside its bone marrow.
What is the skeletal system?
When you are dehydrated, a hormone controls the release of urine from the bladder, which is the holding tank for this specific system.
What is the excretory system?
If you stand up too quickly, a positional change can result in decreased blood flow from this system to the brain, causing you to feel light-headed.
What is the circulatory system?
The sight of a scary figure triggers this system to increase your adrenaline so you have the energy to run away.
What is the endocrine system?
When fighting an infection like strep throat, the hypothalamus gland in the endocrine system triggers the formation of this condition to help "burn out" the bacteria.
What is a fever?