In the EMG experiment, the hand dynamometer was used to illustrate
A. muscle fatigue only.
B. smooth muscle contraction.
C. motor unit recruitment only.
D. motor unit recruitment and muscle fatigue.
E. cardiac muscle contraction.
Answer: D
You might also like to view...
When a hiker encountered a bear in the wilderness, which part of her autonomic nervous system activated?
A. Parasympathetic B. Sympathetic C. Limbic D. Somatic
In an EKG of a normal cardiac rhythm, the P wave and T wave (respectively) indicate __________________ and ___________________
Fill in the blank with correct words.
Using Figure 21.2, match the following:
1) Tidal volume.
2) Inspiratory reserve volume.
3) Residual volume.
4) Expiratory reserve volume.
5) Air that does not participate in the exchange of gases.
Which enzyme is responsible for the hydrolysis of protein to peptide fragments?
a. pepsin b. trypsin c. aminopepsidase d. amylase e. maltase