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Prime Time On a clean sheet of paper, answer the following questions:. How many bones are there in your body? Does the number of bones you have change during your lifetime? If so, how? What is the strongest bone(s) in the human body? Which is stronger: your bones or steel?
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Prime TimeOn a clean sheet of paper, answer the following questions: • How many bones are there in your body? • Does the number of bones you have change during your lifetime? If so, how? • What is the strongest bone(s) in the human body? • Which is stronger: your bones or steel? • What does the word “skeleton” mean? • Are teeth considered bones? • What is the largest bone in the human body? • Are your bones alive?
The Skeletal System:What do I need to know? • The five functions • Major components of bones – pg 479 • Major bones of the human body – pg 475
At your table… • As a group, brainstorm the five functions of the skeletal system. • REMEMBER: I already gave you two!
- The Skeletal System Functions of the Skeletal System • Your skeleton has five major functions: • provides shape and support • enables you to move • protects your organs • produces blood cells • stores minerals and other materials until your body needs them.
- The Skeletal System Cross Section of a Bone Compact Bone Periosteum Spongy Bone Bone Marrow
Major Components of Bone • Periosteum – thin, tough membrane that covers all of the bone except for the ends – blood vessels and nerves enter here • Compact Bone – hard, dense bone tissue that is located just under the periosteum • Spongy Bone – layer of bone tissue having many small spaces – inside the layer of compact bone • Bone Marrow – soft connective tissue that fills the internal spaces of bones • Cartilage – protective tissue that covers the ends of bone- page 477
Major Bones of the Human Body • Though there are 206 bones in an adult’s body, we will learn the names of only 20.
Cranium Mandible
Types of Joints Copy the following chart onto your paper and use pages 476-477 in you book to complete it.
Types of Joints (Title page) Copy the Joint types onto your flipbook and use pages 476-477 in you book to complete it.
Types of JointsCopy the following chart onto your paper and use pages 476-477 in you book to complete it.
Bone question answers: • How many bones are there in your body? • 206 • Does the number of bones you have change during your lifetime? If so, how? • Yes. Baby = 300, Adult = 206 • What is the strongest bone(s) in the human body? • Temporal bones • Which is stronger: your bones or steel? • Bone is 6 times stronger than steel.
Bone question answers continued: • What does the word “skeleton” mean? • Dried up • Are teeth considered bones? • No, they are dentin. • What is the largest bone in the human body? • Femur • Are your bones alive? • Yes!!!!
Components of Bone • Copy down the definitions on your Skeletal System Notes • Rotate work time between Bone drawing and Live Viewing of Cow femur (long bone)