Lab Quiz 2 Flashcards
`Explain the Neural Networks experiment
Trial 1:
1) Line up a single file with classmates, arm length apart
2) Place your hands on the person’s shoulder in front of you
3) As soon as you feel a squeeze, squeeze the shoulders of the person in front of you
4) At the end of the line yell stop
5) Calculate the reaction time
Trial 2:
1) Do the same thing as trial one but with your eyes close and squeeze the opposite shoulder of the person in front of you
Where do Afferent neurons carry?
To the skin, sense organs, muscles, joints and viscera (internal organs)
Where do Efferent neurons carry?
They carry nerve impulses from on neuron to another
Explain the Ruler drop experiment
Explain the ruler drop experiment
Trial 1:
1) hold the ruler between yourself and your lab partner so the “thumb line” is towards the floor
2) Have your lab partner place their thumb and forefinger on either side of the ruler but do not touch it
3) Record the reaction time
Trial 2:
1) Repeat trial one but do it with your eyes closed
Explain the smell test
Have your partner sit with their eyes closed, have them smell each substance one nostril at a time, try and guess what the smells are.
What is a reflex?
an action that is performed as a response to a stimulus and without conscious thought.
IPSP
Inhibitory Post-synaptic potentials
EPSP
Excitatory post-synaptic potentials
What are the various reflexes
Knee jerk reflex
Uvular Reflex
Glabellar Reflex
Ankle Jerk Reflex
Cutaneous Reflex
Know the parts of the brain
https://www.purposegames.com/game/labeling-the-parts-of-the-brain
Explain the color blind test
Show your partner page A-D of the color blind book and record the response of what they see
What are the different types of cone
Red, Blue, Green
What is the blind spot test
1) With your left eye closed, hold the card straight in front of your right eye
2) Focus your eye on the “cross” and slowly bring the card closer to your eye
3) When the image of the “dot” hits the optic disc, it will disappear and that is your blind spot
Know the eye structure
https://www.sporcle.com/games/smac17/human-eye-anatomy
Explain the reading test
Your going to stand 20 feet away from the letters on the wall and go down each line until you can no longer read the letters
Explain the webers test
1) Obtain a tuning fork and mallet
2) strike the tuning fork with the mallet
3) Press the tuning fork to the center of the subject’s head, an equal distance from both ears
4) The subject will determine if the sound if heard the same in both ears, or better in one ear than the other
What is PCT paper
It is a bitter flavored paper to test and sees who can taste the substance on the paper vs. something who can not taste it
The whole class tasted
Explain the 2 point threshold
The two-point threshold is the distance at which, 50% of the time, a subject will feel two points of contact with the body surface as two separate points rather than one point of contact.
This depends on how close and how far apart the neurons are
