1. Body Position & Movement Your Kinesthetic & Vestibular Sense

2. Kinesthetic Sense The system for sensing the position and movement of individual body parts Relies on receptor cells from the muscles and joints (proprioceptors in the muscle spindles & tendon receptors) One’s leg “falling asleep” is a disruption of the kinesthetic sense How important is it? The case of Ian Waterman.The case of Ian Waterman

3. That Finger Weighs a Ton! Stretch out all of your fingers of one hand except your middle finger. Tuck your middle finger up under your hand. Place your hand on the desk top with your fingers touching the top. Try wiggling your fingers. Why can’t you lift your ring finger? Your middle finger and ring finger share the same tendon.

4. Vestibular Sense The system for sensing body orientation and balance Vestibular sense monitors your head’s and body’s position and responds to changes in gravity, motion, and body position. Equilibrium produced in the inner ear in the fluid filled semicircular canals and vestibular sacs. The fluid moves when our head rotates or tilts. Hairlike receptors inside are stimulated by this movement and send messages to the brain.

5. Parts of the Ear – Semicircular Canals

6. Semicircular Canals

7. Other factors in Balance Vision also plays a role. When visual info conflicts with the vestibular system, result can be dizziness, disorientation, and nausea. This happens with motion sickness. Stand on one leg and balance. Now close your eyes. Was it more difficult? Stand on your Right Foot. Close your Left Eye. Look at something with your Right Eye. Gently press your index finger on the Eyelid of the Right Eye pushing it toward your nose. What happens? (Vision and Balance Demo: Myers Instructional Guide pg. 27) Spinning around and stopping fast causes the fluid and receptors to continue moving for a few seconds, tricking the brain into thinking you are still spinning. Your eyes will keep moving in one direction then snap back when you stop - Nystagmus (Myers Instructional Guide pg. 27)

8. Can you Spin Like Wonder Woman? Wonder Woman Wonder Woman has an awesome vestibular sense. (1 min.)

9. Michael Jackson has awesome kinesthetic awareness and vestibular sense. Best of Michael’s Dance Moves 4 min. So Does James Brown Best of James Brown 4 min.