HES 202 EXAM QUESTIONS AND ANSWERS LATEST UPDATE

HES 202 EXAM QUESTIONS AND ANSWERS LATEST
UPDATE

During a fast contraction, recruitment threshold for motor units will be lower or
decreased.

True or false
True
When increasing force, motor units are recruited from _________ to ________.

A. it depends on the speed of the contraction
B. Largest to smallest
C. There is no particular order
D. Smallest to largest
D.
To maintain a steady/smooth contractions at 8Hz, each motor unit produces
partially fused tetanus by firing synchronously.

True or false
False
A motor unit is an alpha motor neuron and all skeletal muscle fibers innervated
by its axon

True or false
True
In healthy young adults, type I motor units will have larger axon diameter and
have fewer muscle fibers than type IIb/IIx motor units.

True or false
False
Muscle force can be increased by two motor unit strategies. What are these two
neural control strategies?

A. Recruitment and summation
B. Recruitment and saltatory conduction
C. Saltatory conduction and rate coding
D. Recruitment and rate coding
D.
Which of the following is correct, when referring to a motor unit?

A. The fundamental functional unit of force production
B. The first recruitment motor units are the largest