11. The period of time (a few milliseconds) between the stimulation of a muscle fiber and the onset- of shortening of the muscle is called: T + a) period of relaxation + b) latent period + c) period of contraction + d) synthesis period
11. The period of time (a few milliseconds) between the stimulation of a muscle fiber and the onset- of shortening of the muscle is called: T + a) period of relaxation + b) latent period + c) period of contraction + d) synthesis period
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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please answer 11,12,13,14

Transcribed Image Text:**11.** The period of time (a few milliseconds) between the stimulation of a muscle fiber and the onset of shortening of the muscle is called:
- a) period of relaxation
- b) latent period
- c) period of contraction
- d) synthesis period
**12.** Increasing the strength of skeletal muscle contractions by increasing the speed of stimulation so that the second stimulus is delivered before the muscle has relaxed from the first stimulus is called:
- a) multiple motor unit summation
- b) wave, or temporal, summation
- c) threshold stimulus summation
- d) muscle fatigue
**13.** A lever system in which the effort is applied at one end of the lever and the fulcrum is located at the other, with the load at some intermediate point between them, is called:
- a) a first-class lever system
- b) a second-class lever system
- c) a third-class lever system
- d) a lower-class lever system
**14.** Sensory nerve fibers of the peripheral nervous system that carry impulses from the skin, skeletal muscles and joints are called:
- a) visceral afferents
- b) somatic afferents
- c) cranial nerves
- d) visceral efferents
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