Multiple Choice
W e inject a slightly depolarizing current into an axon at x = 0 cm continuously monitor the potential at x = 5 cm away. At steady state, the resting membrane potential is -70 mV. At the point of injection,the potential is -60 m V and at x = 5 cm away it is -66.3 mV. W hat is the space constant?
A) 2.5 cm
B) 5.0 cm
C) 10.0 cm
D) 15.0 cm
E) 20.0 cm
Correct Answer:

Verified
Correct Answer:
Verified
Q5: he space constant or length constant
Q6: Myelin does all of the following EXCEPT<br>A)
Q7: The conduction velocity is increased by<br>A) Shortening
Q8: An action potential begins at a special
Q9: The "specific capacitance" is the<br>A) Capacitance per
Q11: In a myelinated nerve, all of the
Q12: Myelin increases conduction velocity because it<br>A) Decreases
Q13: To determine the length constant, or space
Q14: Decreasing the capacitance of the axon mem
Q15: Myelin<br>A) Decreases the capacitance of the axon