Skeletal Muscle Physiology Case Study

REVIEW SHEET
EXERCISE 2
Skeletal Muscle Physiology

NAME:
LAB TIME/DATE:

Electrical Stimulation
1. Name each phase of a typical muscle twitch, and, on the following line, describe what is happening in each phase.
a.

b.

c.

2. In Activity 2, how long was the latent period? __________ msec
Describe the chemical changes that are occurring during this period.

The Graded Muscle Response to Increased Stimulus Intensity
3. From Activity 3, describe the effect of increasing the voltage. What happened to the force generated and why did this change occur?

4. How does this change occur in vivo?

5. In Activity 4, you looked at the effect of stimulating the muscle multiple times in a short period with complete