Choose the correct statement regarding motor units.
A) Muscle fibers of each motor unit are not mingled with those of other motor units.
B) During a sustained contraction, all motor units are activated simultaneously.
C) A motor neuron may control only two or three muscle fibers of the eye muscle(s).
D) When muscles contract for sustained periods, maximal tension is maintained.
E) Most motor neurons control fewer than five muscle fibers.
C) A motor neuron may control only two or three muscle fibers of the eye muscle(s).
You might also like to view...
A person with type AB blood has __________ RBC antigen(s).
A. no B. anti-A and anti-B C. anti-A D. anti-B E. A and B
Potassium channels located where are necessary for its reabsorption?
A) proximal tubule basolateral membrane B) intercalated cells basolateral membrane C) principal cells basolateral membrane D) principal cells apical membrane E) proximal tubule apical membrane
The structure found between the posterior rootlets and the posterior root ganglion is called the ________.
A. anterior root B. posterior root C. anterior horn D. spinal nerve E. posterior horn
Structures that contribute to the maintenance of balance and equilibrium include the ________.
A. vestibular apparatus B. eyes C. proprioceptors from joints and muscles D. All of the choices are correct.