by Melanie GrayMSU ~ MAET

CEP 811

Skeletal System

an interactive presentation

How this works! Click here for a quick tutorial!

A quick tutorial...This is an interactive presentation where you are in charge.

To move to the next slide click on the arrow on the right side and to move back a slide click on the arro

w on the left.

The diamond will take you to the main menu/home.

Don’t forget to complete your notes page too!

Home

The Skeletal System

What is the skeletal system?

Inside our bones.

What are joints?

Home

Click here if you have completed all

3 sections.

What are our bones made of?

Periosteum

the outer surface of bone

Hard Bone

the tough dense outer layer of bone

Spongy Bone

inside the bone there are cells with spaces between them

Marrow

thick jelly like substance - its job it to make blood cells

Home

Inside the bones

Yellow marrow

stores fat and releases it when the body needs it

Red marrow

Makes red and white blood cells and platelets in large amounts

Home

QUIZ TIME!Click on the correct answer

Red marrow stores fat and releases it when the body needs it.

True

False

Oops - let’s go back and look at that question again.

The skeletal system is the framework that holds our body together.

Without bones we would be a pile of mush on the floor.

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What is the skeletal system?

Skeletal SystemBones also protect our body.

our skull protects our brain

our spine protects the nerves in our spinal column

our ribs protect our heart & lungs

Home

That is a lot of bones!Babies have over 300 bones in their body.

Adults have 206 bones in their body.

half of our bones are in our hands and feet

the largest and heaviest bone is the femur

The smallest bone is in the ear…ear ossicles. The stapes (“stirrup”), incus ("anvil"), and malleus (“hammer”).

Home

The SpineThe spine is the central support for the body. It is what allows us to stand up.

The spine is made up of separate bones called vertebrae.

There are 33 vertebrae in the spine

7 Cervical - in the neck

12 thoracic - chest area

5 lumbar - lower back

5 Sacrum & 4 Coccyx - fused vertebrae that make up the tailbone

Home

Did you know?

That Giraffes and humans have the same number of

bones in their neck. Giraffe neck vertebrates

are just much,much longer

Home

The rib cage is made up of 12 vertebra, 24 ribs and the sternum.

It protects our heart and lungs.

Menu

The Ribs

Our lower body is incredibly strong.

The pelvis - hip bone- helps us stand upright and move

Other bones in the leg are the femur, fibular & tibia

Our patella - knee cap - protects the knee joint

Hips and Legs

Home

Shoulders & ArmsThe clavicle and scapula form the shoulder

There are 3 bones that make up our arms

humorous

radius

ulna

Home

Half of our 206 bones are in our hands and feet

Our hands have 27 bones

Our feet have 25 bones

Hands and Feet

Home

QUIZ TIME!Click on the correct answer

How many bones are in the adult human body?

33 bones

206 bones

300 bones

Oops - let’s go back and look at that question

again.

What about Joints?

A joint is a location where two or more bones meet.

Some joints do not move - like those in our skull. But others help our body move.

Home

Ball and Socket Joints

Home

Hinge Joints

Home

Pivot Joint

Home

Sliding/Gliding Joints

These joints slide past each other. Midcarpals (in our hands) and midtarsals (in our feet) are gliding joints. See if you can feel the gliding joints as you make your hand into a fist.

Home

Double joints?

Home

QUIZ TIME!Click on the correct answer

What type of joint is our shoulder?

sliding joint

hinge joint

ball and socket joint

pivot joint

YEAH!! You are correct!

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again.

Congratulations! You have

completed this interactive

presentation of the skeletal

system.Oops! I clicked on the wrong button! Take

me home!