Introduction to Body Systems

Human
Organ Systems

How do our parts work together to meet our needs?

Humans are organisms.

​

• Humans are living things.

• Humans have a life cycle:

  • Be Born, Grow, Reproduce, Die

• Humans have needs:

  • Food, Water, Shelter, Air​

• Humans are made of parts that work together to help us meet our needs.

• Each body part has a different functions.

Multiple Choice

Is a person an organism?

• Yes

• No

Multiple Choice

My body parts have different jobs.

The Science word for job is ____.

• Organism

• Cell

• Function

Reorder

Sequence these steps in the Life Cycle.

• Be born.

• Grow.

• Reproduce.

• Die.

1

2

3

4

• 1
• 2
• 3
• 4

Match

Match the following human activities to the need it helps to meet.

• Eating pizza.

• Drinking from a straw.

• Living in an apartment

• Breathing in oxygen

Food

Water

Shelter

Air

• Food

• Water

• Shelter

• Air

Humans are made of cells.

​

• Like all organisms, humans are made of cells. Examples of cells include blood cells, heart cells, and brain cells.

• A group of cells is called a tissue. Tissues include muscles, nerves, and the skin.

• A group of tissues is called an organ. Examples of organs include the heart, lungs, and brain.

• A group of organs is called an organ system. Organ systems include the nervous system, digestive system, and skeletal system.

• A group of organ systems is called an organism.

Multiple Choice

Cells, Cells, they're made of ___.

• organelles

• plastic

• metal

• energy

Reorder

Put these in order from simplest (1) to most complex (5)

• Cell

• Tissue

• Organ

• Organ System

• Organism

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Match

Match the diagram to its name.

Cell

Tissue

Organ

Organ System

Organism

• Cell

• Tissue

• Organ

• Organ System

• Organism

Reorder

Put these in order from simplest (1) to most complex (5).

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

System Overview

​

• We will discuss 7 systems:

• Circulatory System - carries blood around the body

• Respiratory System - absorbs oxygen and releases carbon dioxide

• Digestive System - turns food into fuel

• Skeletal System - gives the body a shape

• Muscular System - lets the body move

• Nervous System - transfers messages to and from the brain

• Reproductive System - creates new organisms

Match

Match the system diagram to its name.

Circulatory System

Digestive System

Respiratory System

• Circulatory System

• Digestive System

• Respiratory System

Match

Match the system diagram to its function.

Carries blood around the body

Turns food into fuel

Absorbs O₂ and releases CO₂

• Carries blood around the body

• Turns food into fuel

• Absorbs O₂ and releases CO₂

Match

Match the system name to its function.

• Circulatory System

• Digestive System

• Respiratory System

Carries blood around the body

Turns food into fuel

Absorbs O₂ and releases CO₂

• Carries blood around the body

• Turns food into fuel

• Absorbs O₂ and releases CO₂

Match

Match the system diagram to its name.

Skeletal System

Muscular System

Nervous System

Reproductive System

• Skeletal System

• Muscular System

• Nervous System

• Reproductive System

Match

Match the system diagram to its function.

Gives the body a shape

Helps the body move

Transfers messages to and from the brain

Creates new organisms

• Gives the body a shape

• Helps the body move

• Transfers messages to and from the brain

• Creates new organisms

Match

Match the system diagram to its function.

• Muscular System

• Nervous System

• Reproductive System

• Skeletal System

Helps the body move

Transfers messages to and from the brain

Creates new organisms

Gives the body a shape.

• Helps the body move

• Transfers messages to and from the brain

• Creates new organisms

• Gives the body a shape.

Open Ended

"The system I am most curious to learn about is the ___ System because ___."