Chapter 8, Problem 37RA

Table 7.3 (chapter 7) provides the axon diameters and conduction velocities required to answer the following questions.

Suppose, in a knee-jerk reflex, the sensory axon and motor axon extending between the muscle and spinal cord are each 16 inches long. The sensory axon has a diameter of $\text{17 μm,}$ and the motor axon has a diameter of $\text{9 μm}$. Given that there are 2.54 cm per inch, and that a rate of

1 m/sec is equal to 2.24 miles per hour, answer the following questions.

What is the rate of conduction of the motor axon in meters per second and in miles per hour?