Reflex Lab

In this lab, we tested different reflexes of the human body. Many of these reflexes are needed for survival or protection so they go from the sensory neurons to the spinal cord and the orders are formed and sent.  The pupil shrinks in the light because it needs to make sure there is not too much light coming in. In the lab, we see when there is more light the eye adjusts to there is less coming in because there is more.
The knee-jerk helps to keep you upright. When you start to lean it triggers the contraction of the muscles, recentering us. After the squats, the response was reduced because the muscles were tired and less able to contract.
Blinking when something is thrown at your face is because if that thing were to hit you it might injure your eyeball. The eyelid serves as extra protection to the eye.

The reflex times in the ruler drop were significantly increased when texting. This is because our attention is diverted to something other than grabbing the ruler. this is why texting while driving is dangerous; our attention is on something other than the road. Then our attention finally comes back to the road and it is too late.