Reflex Lab

1. Photopupillary Reflex
1.  I think humans have evolved this reflex because our eyes are sentitive to light. I think that if we didnt have this reflex we may be blind because that bright light would damage functions in the eye. 

1. Knee Jerk Reflex
1. I think this type of sensory receptor in the muscle receiving the stimuli is a motor receptor. The reaction to the thigh musle to this reflex is to make the lower part of the leg "jump''. I think humans have evolved this reflex because it is what allows us to have movement. WIthout reflexes we would not be able to react quickly to things that occur fast. 
2. after 30 seconds of air squats the relfex was less vigorous/sever than before. This was because all the ATP had depleted. 

1. Blink Reflex
1. Yes i blinked when the cotton ball was thrown at me. I think that humans have this reflex because we want to react when something is coming towards us fast or unexpected. Its instincts that something bad may happen if you don't react.

1. Babe whats you sign?
1. My response was that my toes spread. Yes thats normal because it shows that you have those sensory receptors to touch. It shows that you have feelings withing that part of your body and when the cap is dragged along the bottom of your foot it is kinda painful which causes your toes to want to spread. 
2. if a person had MS they would not show this same relfex because they lack the sensory recptors in their body, 

1. How fast are you?
1. in the first experiment Angela was faster than Kelly. Its all about reaction time, some people have faster reactions to things like this. It all depends on the reaction to the recptors and the way in communicates with the brain.
2. Being distracted caused the times to be greater. They had a slower reaction to the dropping ruler because they were focused on something else. Their brain was focused on soemthing else not having any sense of their surroundings. The 2second rule we learned in drives ed applys to this in the fact that it takes just as long to react to whats going on around you You are focused on something else and if I threw a ball at a person that was texting the ball would probably hit them before they saw it coming because their sensory and motor receptors we not communication with them. 

In this lab, I worked in a group of three. I was tested on most of the reflexes except the "how fast are you". I think it would have been better if the other group members did the other reflexes because then we would get to see how they reacted to these reflexes as well. This lab was to see the different reflexes what we have and how we reacted to them, how quick we reacted to them and why we reacted to them.