Essential Question:

How do major organ systems work

together in living organisms?

Standards:

S7L2d. Explain that tissues, organs, and organ systems serve the needs cells have for oxygen, food, and waste removal.

S7L2e. Explain the purpose of the major organ systems in the human body (i.e., digestion, respiration, reproduction, circulation, excretion, movement, control and coordination, and for protection from disease).

What systems of the body are used when

walking, running, jumping, etc.?

http://www.netanimations.net/walking.htm

What part of our body is most like the

frame of a house shown in the picture?

Why?

Why Do We

Have Bones?

Skeletal System:

Provides SupportBones help hold your body up, just

like the frame on a house

Skeletal System:

Aids in Movement• Bones allow us

to move

• Joints are where

two bones meet

• Bones are connect to

other bones by

ligaments

Joint:

where two

bones meet

Skeletal System:

Provides ProtectionOur Rib Cage

Protects the

Organs inside of

our Body

Skeletal System:

Blood Cell Production

New Blood Cells

are made in the

center of your

bones called the

marrow.

What are

Bones?

Parts of our Bones

Based on the

diagram to the right,

what would you

guess is the

difference between

Compact Bone and

Spongy Bone?

Compact Bone is very dense and tough.

Spongy Bone is strong, but lightweight.

Skeletal

SystemProvides

Support

Aids in

Movement

Provides

Protection

Blood Cell

Production

Skeletal System Analogies

• The Skeletal System is to the Human

Body as ____________ is to

____________.

• How is the Skeletal System like a shield?

• How is the Skeletal System like an

engine?

• How is the Skeletal System like a

factory?

• How is the Skeletal System like the poles

or rope in a tent?

We know that bones allow us to move at joints, but what makes us move?

Muscular SystemMuscles of the body that,

together with the Skeletal

System, function to produce

movement.

Types of Muscles

Smooth Muscle–Found inside

organs

–Contracts to move things through the organ

–Involuntary

What does

involuntary

mean?

Types of MusclesStriated (Skeletal) Muscle

–Move your bones and body by

contracting and relaxing

–Attached to bone with tendons

–Voluntary movement

Types of Muscles

Cardiac Muscle

–Found in the

Heart

–Responsible for

pumping blood

through the body

–Involuntary

Cardiac Muscle

Skeletal System &

Muscular System[see resources]

• Muscle Model Activities

• Making Muscles Move

If your bones allow movement,

and your muscles move your

body, how do we control all of

this movement?

The Nervous

SystemThis system is

responsible for

sending, receiving,

and interpreting

information from all

parts of the body.

The

BrainThe control

center of your

body sends out

and receives

signals to and

from your nerves;

controls organs

Spinal

Cord

Connects

your brain

to the rest of

the nerves in

your body

Nerves• Sense your external and

internal surroundings

• Communicate

information between

your brain, spinal cord

and muscles

• Coordinate voluntary

and involuntary

movements

• Watch the next Video

• On a scratch sheet of

paper describe what role

these systems play:

•Skeletal system

•Muscular system

•Nervous system

Ticket Out The

Door