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dAll of the above e.both a and c are correct
The soleus muscle plays a role in posture (steady contractions) and has an average innervation ratio of 2000 muscle fibers per motor neuron, and can generate forces needed for sudden changes in body position (kicking/jumping). The extraocular muscles controlling the movement of the eye have small motor units with an innervation ratio of only 3! From this information, and knowing the actions of the soleus (posture), gastrocnemius (jumping), and extraocular muscles (eye movement), identify the following statements as either True (T) or False (F):
6. The contraction force generated by the soleus muscle is strong but not very gradable. T/F
7. The contraction force generated by the gastrocnemius muscle is powerful and gradable. T/F
8. Extraocular muscles generate powerful, gradable, yet highly precise forces/movements. T/F
9. The figure here depicts the forces generated by a whole muscle contraction. The resting tension a. is added to active tension to yield the total tension generated. b. is the potential energy stored in stretched tendons. c. is only generated when the muscle is extended/stretched beyond a resting position. d. All of the above are correct. e. Both a and b are correct.