Fun Facts!Fun Facts!There are about 206 bones in a grown-There are about 206 bones in a grown-up’s body. But more than half of them up’s body. But more than half of them are located just in our hands and feet!are located just in our hands and feet!

Humans and giraffes have the same Humans and giraffes have the same number of bones in their necks = 8 number of bones in their necks = 8 Giraffe neck vertebrae are just much, Giraffe neck vertebrae are just much, much longer! much longer!

Humans and elephants are the only animals Humans and elephants are the only animals to show fear when they stumble upon a to show fear when they stumble upon a skeleton of their own kind! skeleton of their own kind!

People in Madagascar have a ritual called People in Madagascar have a ritual called the “turning of the bones” during which the the “turning of the bones” during which the dead are dug up and entertained and dead are dug up and entertained and reburied with a new set of gifts!!reburied with a new set of gifts!!

The strongest bone in your body is your The strongest bone in your body is your femur (your thigh bone).femur (your thigh bone).

Antlers and horns are not the same thingAntlers and horns are not the same thing

Antlers are made entirely of bone, while horns are Antlers are made entirely of bone, while horns are not. not.

Elephant tusks are bones. Elephant tusks are bones.

During medieval times, doctors in Europe and the Middle East thought mummies had medicinal value. The ground up thousands of Egyptian mummies and put them in expensive medicines for their patients!!

1. How is skeleton like the frame in a 1. How is skeleton like the frame in a building?building?

2. Baby = 275, Adult = 2062. Baby = 275, Adult = 206

3. Bones fuse together as you get 3. Bones fuse together as you get olderolder

3. Skeletal 3. Skeletal SystemSystem

1.1. Provides shape and support for the Provides shape and support for the body.body.

2.2. Enables you to moveEnables you to move

3.3. Protects your internal organsProtects your internal organs

4.4. Produces blood cellsProduces blood cells

5.5. Stores minerals in bone and fat in Stores minerals in bone and fat in marrow.marrow.

4. The backbone 4. The backbone (vertebrae)(vertebrae) is the is the center of the skeleton. center of the skeleton.

2626 Bones Bones

5. Bone protect 5. Bone protect important organs.important organs.

Skull protects brainSkull protects brain

Ribs protect your heart and Ribs protect your heart and lungslungs

6. A joint is 6. A joint is a place in the body a place in the body where two bones come where two bones come together. together.

7. Joints allow 7. Joints allow bones to move bones to move in different waysin different ways..

8. 2 types of Joints:8. 2 types of Joints:

MoveableMoveable = Hip, hand, knee, = Hip, hand, knee, shoulder, neckshoulder, neck

ImmovableImmovable = Skull = Skull

9. Bones in movable joints are 9. Bones in movable joints are held together by strong held together by strong connective tissue called connective tissue called LIGAMENTSLIGAMENTS..

10. Another type of connective 10. Another type of connective tissue is tissue is CARTILAGECARTILAGE which is which is more flexible than bone. It more flexible than bone. It covers the ends of covers the ends of BONESBONES and and keeps them from rubbing keeps them from rubbing together. together.

11.Compact bone is 11.Compact bone is hard and dense, but hard and dense, but not solidnot solid. The canals in compact . The canals in compact bone carry bone carry blood vessels and nervesblood vessels and nerves from the bone’s surface to the living from the bone’s surface to the living cells within the bone. cells within the bone.

12. Spongy bone has 12. Spongy bone has small spacessmall spaces which which makes it makes it lightweightlightweight. .

13. Bones contain soft connective tissue 13. Bones contain soft connective tissue called called marrowmarrow. The 2 types are . The 2 types are redred and and yellowyellow. .

13. Label the bone:13. Label the bone:A – Compact BoneA – Compact BoneB – Bone MarrowB – Bone MarrowC – Spongy BoneC – Spongy BoneD – Outer MembraneD – Outer Membrane

14. D14. D15. A15. A16. B16. B17. C17. C

18. Bones are 18. Bones are alivealive and they and they contain contain cellscells and and tissuestissues, such , such as as blood blood and and nervesnerves. Bones . Bones form new tissue as you form new tissue as you grow.grow.

Make sure you added this:Make sure you added this:Bone Marrow:Bone Marrow:

RedRed and and YellowYellowRed – Makes BloodRed – Makes BloodYellow – Store fat.Yellow – Store fat.

I. The I. The Muscular Muscular SystemSystem

There are about There are about 600600 muscles in muscles in your body!! your body!!

2. Some muscles are NOT under your 2. Some muscles are NOT under your control, these muscles are called control, these muscles are called involuntaryinvoluntary..

3. Involuntary muscles are 3. Involuntary muscles are responsible for responsible for breathing and breathing and digesting fooddigesting food. .

4. YOU have CONTROL over voluntary 4. YOU have CONTROL over voluntary muscles. muscles.

5. 5. 33 Types Types of of

MusclesMuscles

1. Skeletal 1. Skeletal 2. Smooth2. Smooth3. Cardiac3. Cardiac

Skeletal MuscleSkeletal Muscle –are attached to –are attached to your bones. your bones.

= Striated Muscle.

Smooth MusclesSmooth Muscles – Used for – Used for pushing food in the pushing food in the digestive tractdigestive tract and in your and in your blood vesselsblood vessels to push to push blood along.blood along.

CARDIAC – in the heartCARDIAC – in the heart

6. Skeletal muscles are attached to 6. Skeletal muscles are attached to the the bonesbones of your of your skeletonskeleton and and provide the provide the forceforce that moves your that moves your bonesbones. .

7. A tendon is a strong connective 7. A tendon is a strong connective tissue that tissue that attaches muscle to attaches muscle to bone. bone.

Think “T” for Tendon, “t” for Think “T” for Tendon, “t” for muscle TO bone. muscle TO bone.

8. Skeletal muscles are 8. Skeletal muscles are under under your controlyour control so they are so they are classified as classified as voluntaryvoluntary muscles. muscles.

9. Smooth muscles are 9. Smooth muscles are involuntaryinvoluntary muscles, muscles, they work they work automatically to automatically to control control certain certain movements in your movements in your bodybody such as such as digestion.digestion.

10. Stomach, blood vessels, intestines, esophagus

11. Cardiac muscle is 11. Cardiac muscle is ONLY found in the ONLY found in the HEARTHEART!!!!

12. Muscles can ONLY 12. Muscles can ONLY contract and PULL. contract and PULL.

Muscles do NOT extend or Muscles do NOT extend or push. push.

While one muscle While one muscle CONTRACTS, the other CONTRACTS, the other RELAXES. RELAXES.

one muscle CONTRACTS, one muscle CONTRACTS, the other RELAXES. the other RELAXES.

Muscle Type

Voluntary Involuntary

Reacts Quickly

Tires Quickly

Skeletal Yes No Yes Yes

Smooth No Yes No No

Cardiac No Yes Yes No

14. Functions of Skin:1.Protect Body – from disease getting inside and holds important fluids in (like water)2.Maintain Temperature – sweat to get rid of body heat to help cool the body. 3.Eliminate Waste – Sweat (extra water, proteins, salt)4.Gather Information – sensory nerves provide information about pressure, pain and temperature. 5.Produce Vitamin D – important for healthy bones