Topic 9 - Stimulus-Dependent Force Generation of a Skeletal Muscle

Question 1

Which program should you open?

Answer 1

PHILS

Question 2

What’s the first thing to do when entering the simulation and answering the questions?

Answer 2

Click POWER

Question 3

How much does each click of the ruler increase the length of the muscle?

Answer 3

0.5 mm

Question 4

What happens when increasing the applied voltage?

Answer 4

Muscle tension increases

Question 5

Explain the theory behind voltage and muscle tension

Answer 5

Increasing stimulus increases the amount of motor units firing.

IMPORTANT A motor unit is one nerve and many muscle fibers

Question 6

How far can you recruit motor units?

Answer 6

Till they’re fully used up or they are fully fatigued

Question 7

(Excitation) Electrical-Contraction-Coupling of skeletal muscle

Answer 7