Nerve conduction lab

Question 1

what is compound action potential

Answer 1

sumuation of many action potentials from individual axons

Question 2

what is intracellular recording?

Answer 2

obtained by sharp intracelluar electrode inside sell membrane of single neuron and 1 electrons outside

Question 3

what is extracellular recording?

Answer 3

recordings of CAP obtained by 2 extracellur recording electros placed at differen loacations outside the nerve

Question 4

what was done to the sciatic nerve

Answer 4

eleltrical responses from acons with the nerve by shoking the nerve with stimulating electrodes.

Question 5

what is conduction velocity

Answer 5

measurment of speed of conduction of electrical impulse through a nerve

Question 6

true or false

After dissecting the frog and removing the nerve, you should immediately stretch the nerve to its full length

Answer 6

false

Question 7

Which of the following manipulations we will perform in this lab?
Changing the length of the nerve

Adjusting the amplitude of stimulation

Changing the direction of the nerve

Adjusting the temperature of the nerve

Changing sodium concentration of the Ringer’s solution

Answer 7

Changing the length of the nerve

Adjusting the amplitude of stimulation

Changing the direction of the nerve

Adjusting the temperature of the nerve

Question 8

Changes in voltage while recording a CAP, as we will record it in this lab, are caused by:

Answer 8

Differences in voltage recorded extracellularly between the two recording electrodes