The Skeletal System Alix Véliz Salgado

The Skeletal System What is a Bone? What is a Bone? What is a Bone? What is a Bone? The Inside of a Bone The Inside of a Bone The Inside of a Bone The Inside of a Bone Four Main Jobs of a Bone Four Main Jobs of a Bone Four Main Jobs of a Bone Four Main Jobs of a Bone The Spine The Spine The Spine The Spine Ribs Ribs Ribs Hands and Feet Hands and Feet Hands and Feet Hands and Feet Hips and Legs Hips and Legs Hips and Legs Hips and Legs Arms Arms Arms Joints Joints Joints Joints Movie Joints Movie Joints Movie Joints Movie Quiz Quiz Quiz References References References

What is a Bone? The skeletal system is made up of the bones and cartilage that forms the framework of your body. The skeletal system is made up of the bones and cartilage that forms the framework of your body. We have bones so that we are not a puddle of skin and guts on the floor. We have bones so that we are not a puddle of skin and guts on the floor. Babies have 300 bones. Babies have 300 bones. Adults have 206 bones. Adults have 206 bones. Click on the Hand to watch a video on bones! Main Menu

The Inside of a Bone A bone is made up of salts, water, and tissue. A bone is made up of salts, water, and tissue. Inside a bone there is a jelly substance called bone marrow. Inside a bone there is a jelly substance called bone marrow. Bone marrow produces blood cells for the body. Bone marrow produces blood cells for the body. Main Menu

Four Main jobs of a Bone: 1. To protect your body and give it shape. 2. To protect your internal organs. 3. To provide a scaffolding for your muscles, allowing you to move. 4. To store minerals and make blood cells. Main Menu

The Spine The spine is the central support for the body. The spine is the central support for the body. The spine is made up of separate bones called vertebrae. The spine is made up of separate bones called vertebrae. Between each vertebrae is cartilage which keeps bones from rubbing against each other. Between each vertebrae is cartilage which keeps bones from rubbing against each other. FUN FACT: there are 26 vertebrae in the human body. FUN FACT: there are 26 vertebrae in the human body. Main Menu

Ribs “Your rib cage is made up of 12 vertebrae, 24 ribs and a breastbone in three parts. It protects your heart and lungs from knocks and bumps.” “Your rib cage is made up of 12 vertebrae, 24 ribs and a breastbone in three parts. It protects your heart and lungs from knocks and bumps.” Main Menu

Hands and Feet The bones in your hands and feet are VERY flexible. The bones in your hands and feet are VERY flexible. The foot has 26 bones. (tarsals, metatarsels, and phalanges) The foot has 26 bones. (tarsals, metatarsels, and phalanges) The hand has 27 bones. (metacarpals, carpals, and phalanges) The hand has 27 bones. (metacarpals, carpals, and phalanges) Main Menu

Hips and Legs The hip bone helps us to stand upright and move. The hip bone helps us to stand upright and move. The main bones of the legs are the tibia, fibia, and femur. The main bones of the legs are the tibia, fibia, and femur. The patella (kneecap) is also important! The patella (kneecap) is also important! Main Menu

Arms The bones in the arm are very flexible. The bones in the arm are very flexible. The three bones that make up the arm are the ulna, radius, and humerus. The three bones that make up the arm are the ulna, radius, and humerus. The two bones that form the shoulder are the clavicle and the scapula. The two bones that form the shoulder are the clavicle and the scapula. Main Menu

Joints The Pivot Joint Hinge Joint The Gliding Joint Ball-and-socket Joint View More on Joints! Main Menu

Joints Movie! Click on the Foot to watch a movie about the different joints. Click on the Foot to watch a movie about the different joints. Main Menu

Quiz 1. How many bones are in an adult? 4. What is another name for kneecap? A. 342 bones A. Sternum bones. Sternum bones. Sternum B. 100 bonesB. Phalanges 100 bonesPhalanges 100 bonesPhalanges C. 85 bonesC. Tibia 85 bonesTibia 85 bonesTibia D. 206 bonesD. Patella bonesPatella bonesPatella 2. What is the jelly substance inside a bone called?5. The legs are connected to what? A. CartilageA. The Hips (Pelvis) CartilageThe Hips (Pelvis) CartilageThe Hips (Pelvis) B. Bone MarrowB. Skull Bone Marrow. Skull Bone Marrow. Skull C. Compact BoneC. Hands Compact BoneHands Compact BoneHands D. JointsD. Heart JointsHeart JointsHeart 3.What Bone protects the internal organs BONUS QUESTION!!! like the lungs and heart?What joint is found in the ankle? like the lungs and heart?What joint is found in the ankle? A. The SpineA. Pivot Joint The SpinePivot Joint The SpinePivot Joint B. The Femur B. Gliding Joint The FemurGliding Joint The FemurGliding Joint C. The RibsC. Hinge Joint The RibsHinge Joint The RibsHinge Joint D. PelvisD. Ball-and-socket Joint PelvisBall-and-socket Joint PelvisBall-and-socket Joint Main Menu

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References Great Source Education Group. Science Saurus: A Student Handbook. Wilmington: Great Source Education Group, Great Source Education Group. Science Saurus: A Student Handbook. Wilmington: Great Source Education Group, skeletal/skeletalsystem.html skeletal/skeletalsystem.html skeletal/skeletalsystem.html skeletal/skeletalsystem.html upload/file_collection/ms.web.ms5347.xray.jpg upload/file_collection/ms.web.ms5347.xray.jpg upload/file_collection/ms.web.ms5347.xray.jpg upload/file_collection/ms.web.ms5347.xray.jpg Main Menu