This classroom connector addresses Instructional Objectives 1.07, 1.08, and 1.09. Today class I want you to hold up your arm and tighten and release your fist. Observe the movement. Feel your neighbor's arm. Today class we will discuss the meaning and function of voluntary and involuntary muscles.
Muscles range in size from the large ones in the thigh to the very tiny muscles found in the ear.
You have more than 600 muscles, big and small. You have muscles in almost every part of your body. Some of our muscles act on commands from our brain. Your brain told your muscle what to do. Your heart is a muscle.