Transcript
Page 1: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Skeletal System

Page 2: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Bones•The skeletal system is made up of bones and cartilage, which is the framework of our body.•Babies have 300 bones•Adults have 206 bones•We have bones to help hold us up, so that we are not one big blob on the floor

Page 3: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206
Page 4: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

What is a bone?•A bone is made up of salts, water, and tissue•Inside a bone, there is a thick jelly-like substance that is called bone marrow.•Bone marrow has a major job and that is to make blood cells for our body.

Page 5: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Jobs of Bones:1.Protect your body and give it strength2.Protect your organs inside, such as lungs and brain3.Provide a support system for your muscles, and allow you to move4.Store minerals and make blood cells for your body

Page 6: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Super Spine•Your spine lets you twist and bend •It holds your body upright•Protects the spinal cord (a large bundle of nerves that sends information from your brain to the rest of your body)

•The spine is made of 26 bones in all!•These bones are called vertebrae and each one is shaped like a ring

Page 7: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Reliable Ribs•Ribs “act like a cage of bones around your chest”; they protect your heart, lungs, and liver•Your ribs come in pairs•Most people have 12 pairs of ribs, but believe it or not, some people can be born with an extra pair!

Page 8: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Skull or Cranium•Protects your most important organ: your brain•Some bones protect the brain, while others make up the structure of your face•Cool fact: the smallest bone in our body is found here; the stirrup bone behind your eardrum is .1 to .13 inches!

Page 9: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Handy Hands and Flexible Feet

•The bones in your hand and feet are flexible and very useful•Each hand has 27 bones (carpals, metacarpals, and phalanges)•Each foot has 26 bones (tarsals, metatarsals, and phalanges)•We use our hands to grasp and write and our feet to stand and walk

Page 10: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Bones in our hands & feet

Page 11: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Helpful Hips & Long Legs

•The hip bone or pelvis helps us stand up straight and move•The femur bone in your thigh is the longest bone in your body•The knee bone is called the patella•Shin bone = tibia, Calf bone = fibula

Page 12: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206
Page 13: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Awesome Arms•Each arm is attached to a shoulder blade or scapula•The arm is made up of 3 main bones: The humerus (above your elbow) and the radius and ulna (below your elbow)•The two bones that form the shoulder are the clavicle and scapula

Page 14: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206
Page 15: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Flexible Joints

Page 16: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Types of Joints

Page 17: Skeletal System. Bones The skeletal system is made up of bones and cartilage, which is the framework of our body. Babies have 300 bones Adults have 206

Take Care of Your Bones!•Wear a helmet to protect your brain•Wear protective equipment when playing sports•Drink milk to help strengthen those bones•Be active!


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