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 About the Author About the Author About the Author About the Author References References References Concept Map Concept Map Concept Map Concept Map Quit

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 more bones in their bodies. Babies have more bones in their bodies. Adults have 206 bones. Adults have 206 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. 2 Types of Bone: Compact and Cancellate 2 Types of Bone: Compact and Cancellate 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. Quit 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. Quit 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. Quit 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.” Quit 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) Bones in the toes are shorter and fatter than the bones in the fingers. This helps us to balance on two feet. Bones in the toes are shorter and fatter than the bones in the fingers. This helps us to balance on two feet. Quit Main Menu

Hips and Legs The hip bone helps us to stand upright and move. Hip bones support most of weight The hip bone helps us to stand upright and move. Hip bones support most of weight 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 in- between the leg bones. The patella (kneecap) is in- between the leg bones. Quit 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. Quit Main Menu

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

Pivot Joint The only pivot joint in your body is located in your neck. The only pivot joint in your body is located in your neck. It allows you to turn your head left and right. It allows you to turn your head left and right.

Hinge Joint Hinge- A hinge joint allows extension and retraction of an appendage. (Elbow, Knee) Hinge- A hinge joint allows extension and retraction of an appendage. (Elbow, Knee)

Glidding Joint Gliding- In a gliding or plane joint bones slide past each other. Mid-carpal and mid- tarsal joints are gliding joints. (Hands, Feet) Gliding- In a gliding or plane joint bones slide past each other. Mid-carpal and mid- tarsal joints are gliding joints. (Hands, Feet)

Ball and Socket Joint Ball and Socket- A ball and socket joint allows for radial movement in almost any direction. They are found in the hips and shoulders. (Hip, Shoulder) Ball and Socket- A ball and socket joint allows for radial movement in almost any direction. They are found in the hips and shoulders. (Hip, Shoulder)

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 Quit Main Menu

Video Review ators/curricular-resources/science/index.cfm ators/curricular-resources/science/index.cfm ators/curricular-resources/science/index.cfm ators/curricular-resources/science/index.cfm Minutes 6:44-13:00/ 13:38-15:00 Minutes 6:44-13:00/ 13:38-15:00

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 Quit Main Menu