Multiple Choice
A motor unit is
A) A motor neuron and all of the muscle fibers it innervates
B) A single muscle fiber innervated by a single motor neuron
C) All of the m uscle fibers within a muscle fasicle
D) A single muscle fiber innervated by several motor neurons
E) A piston, spark plug, intake valve and exhaust valve
Correct Answer:
Verified
Correct Answer:
Verified
Q8: Maximum power in muscle is produced<br>A) At
Q9: Passive force<br>A) Has a biphasic relationship with
Q10: Tetanic force is typically about<br>A) 10% greater
Q11: In an isometric contraction<br>A) The muscle lengthens<br>B)
Q12: The muscles with the greatest endurance are
Q14: “Recruitment” refers to<br>A) Increasing muscle force by
Q15: If a muscle twitch lasts 0.08 s,
Q16: The contraction that results from a single
Q17: If a muscle twitch is 0.2 s
Q18: Skeletal m uscle is described by all