Under The Microscope: Lesson 1

Front

Cell

Back

The basic building block of life—all living things are made up of one or more cells.

Front

Circulatory System

Back

A body system composed of organs, such as the heart and blood vessels, that transports essential nutrients, gases, and chemicals around the body.

Front

Digestive System

Back

Body system composed of organs, such as the stomach and intestines, that breaks down food to extract and absorb nutrients into the bloodstream, and excrete unused solids from the body as waste.

Front

Excretory System

Back

A body system composed of organs, such as the bladder and kidneys, that filters waste products from the body and excretes these from the body as urine.

Front

Function

Back

The purpose, role, or job of a person or thing.

Front

Muscular System

Back

A body system composed of muscles that allows for movement, retains posture, and helps circulate blood.

Front

Nervous System

Back

Network of nerve cells that gathers information, helps body parts communicate, has 2 main parts: central nervous system (spinal cord and brain) and peripheral nervous system (in organs and limbs)

Front

Organ

Back

A body structure that performs a specialized function (such as the lungs, heart, liver, or kidneys) and may have smaller structures within it (such as the lens, cornea, and retina in the eye).

Front

Respiratory System

Back

A body system composed of organs, including the lungs, that allows for breathing and gas exchange.

Front

Skeletal System

Back

A body system composed of bones and joints that supports and protects the body, produces blood, stores minerals, and allows for movement.