•Construct models to understand the anatomy of the human arm and spinal column.

•Explore the form and function of joints

•Identify major joints of the body and describe the movements they make

•Explore how opposing muscles allow humans to move

Study the picture on p 161. What purpose do joints serve?

Lesson 19Joints and Movement

Getting started:

Within your groups create a list of the things you know about joints and their movements (go over charts as a class.) joints movements

Inquiry 19.1 p. 161•With a partner use the materials to assemble a model that works like the ones pictured on student sheet 19.1•Share both models with the group•Answer the questions in step 6

Review the types of joints using the transparencies 19.1a-19.1d. Explain the types of movements they allow.

Questions p 162

A. What were the joints found in your models?

C. How is your model similar to the chicken wing?

D. What are examples of muscles that work in opposing pairs? (go over examples)

Read What Kind of Joint Is This? p 165 SGDescribe what is happening inside of the bone.

Fibrous, cartilaginous, synovial joints

Plane, ball-and-socket, hinge, pivot, saddle joints

Flexors, extensors

Extensions 2- research artificial joints

Extension 4- design and construct a working model of a joint

Preparation for Lesson 20 p 226 TM