Circulatory
Digestive
Nervous
Skeletal
Immune
100

This is the main organ of the circulatory system.

What is the heart?

100

This is the muscular organ of the digestive system that holds and breaks down food

What is the stomach?

100

The main organ of the nervous system that sends and receives messages

What is the brain?

100

This is the main organ of the skeletal system that gives structure

What are bones?

100

This is the main organ of the immune system where T-cells mature.

What is the thymus?

200

When you breathe, the circulatory system carries this to your cells.

What is oxygen?

200

The process of chewing food and grinding it down into a pulp.

What is digestion?

200

These cells send and receive messages.

What are neurons?

200

Red and white blood cells are produced in this part of the bone.

What is bone marrow?

200

This system is an important part of the immune system and is usually the first defense your body has against disease.

What is the integumentary system?

300

The circulatory system works with this system to take new red and white blood cells to where they need to go

What is the Skeletal system

300

This system works with the digestive system by transporting absorbed nutrients to cells in the body.

What is the circulatory system?

300

The nervous system works with this system to connect neurons to muscle fibers.

What is the muscular system?

300

The skeletal system protects this system by surrounding vital organs like the brain and heart with bone structures.
 

What is the nervous system?

300

These cells are made in the bone marrow and mature in the thymus.

What are T-cells?
400

These blood vessels allow for the exchange of oxygen and nutrients.

What are capillaries?

400

This is a tube that begins at the mouth and ends at the stomach.

What is the esophagus?

400

This is the part of the neuron that receives messages.

What is a dendrite?

400

This is the number of bones there are in the human body

206 bones

400

This is any foreign substance that can cause an immune response.

What is an antigen?

500

This happens when blood flow decreases in one or more coronary arteries.

What is a heart attack?

500

This organ has digestive & endocrine functions, it makes insulin to control blood sugar & enzymes to break down food.

What is the pancreas?

500

This disease happens in older adults and affects memory, thinking, and behavior. It also causes dementia.

What is Alzheimer's Disease?

500

This condition happens in older adults and causes bones to become weak and brittle by losing bone density.

What is osteoporosis?

500

This is a result of an immune response to harmless substances like pollen or pet dander.
 

What are allergies?