…providing support and protection for your body since 1999-ish.

Bones are living tissue! Every movement we make is possible because of the INTERACTION of muscles with the SKELETAL SYSTEM. The skeletal system is made up of a strong, connective tissue called BONE. The skeletal system does 3 things: It serves as the ANCHOR for all the body’s MOVEMENT. It provides SUPPORT. It PROTECTS soft organs inside the body.

2 Types of Bone Tissue COMPACT bone Functions as the basic SUPPORTIVE tissue of the body. The SKELETON. The outer layer of compact bone is HARD and TOUGH. It covers the OUTSIDE of most bones.

2 Types of Bone Tissue (cont.) SPONGY bone Made up of a CALCIUM network. Less DENSE; strong but lightweight. MARROW is found in the spongy bone. Marrow produces RED blood cells. BLOOD VESSELS transport new red blood cells from the marrow and carry materials and nutrients to and from the bone.

RED BLOO D CELLS

Fill in the blanks on the skeleton in your notes outline & then we’ll talk about the 2 different types of skeletons… 1. Axial Skeleton 2. Appendicular Skeleton

With your partner… Read about the Axial Skeleton and the Appendicular Skeleton on page 16 of your textbook. Then, on the back of your notes, create a Venn diagram to compare and contrast the 2 different skeletons.

Your changing skeleton…

Bill Nye the Science Guy!

Making Connections… JOINTS connect parts of the skeletal system. Immoveable &slightly moveable joints Examples? Write them down! Freely moveable joints Examples? Write those down, too. Types of joints Hinge Pivot Sliding Ball and Socket Fixed

Review What are the functions of the two types of bone tissue? What are the main divisions of the human skeleton? Name 3 types of movement produced by moveable joints and give an example of each.