Digestive
Respiratory
Skeletal
Circulatory
General
100

The job of the digestive system

To take in and break down food for use by the body.

100

The job of the respiratory system

Gas exchange between the external environment and the body's circulatory system

100

The job of the skeletal system

Support and give shape to the body

100

The job of the circulatory system

to pump blood from the heart to the lungs to get oxygen

100

The organ system that allows movement

Muscular system

200

A long tube that carries food from the mouth to the stomach

Esophagus

200

The two major organs of the respiratory system where the gas exchange takes place and carbon dioxide is given off, and oxygen is taken in

The lungs

200

The place where two or more bones meet

Joint

200

The structure that prevents the backward flow of blood

Valves

200

The organ system that protects the internal organs

Skeletal system

300

This organ stores swallowed food and liquid, mixes up digestive juices with the food and liquid, and sends it to the small intestine

The Stomach

300

These carry air into the lungs

Bronchi and bronchiole tubes

300

These connect bones to muscles

Ligaments

300

The name for the upper chambers of the heart

Atrium

300

The ovaries are part of the

Reproductive System

400

The place where digested molecules of food, water, and minerals are absorbed

Small Intestine

400

A large muscle that separates the chest cavity from the abdominal cavity and helps with breathing

Diaphram 

400

The number of bones in the human skeleton

206

400

The name of the liqid part of blood

Plasma

400

The circulatory system's job is to...

Transport nutrients and oxygen

500

Tiny fingerlike projections in the small intestine

Villi

500

Lymph tissue and lymph nodes that protect the body from infection

Adenoids and tonsils

500

The part of the bone where blood cells are made

Marrow

500

The substance in red blood cells that carries oxygen 

Hemoglobin

500

The system that produces and regulates horomones

Endocrine system