Select ALL that would INCREASE the strength of a muscle contraction:recruiting more slow-twitch fibers than fast-twitch fibersincreasing AcetylcholinesteraseV secreting glutamate onto somatic lower motor neuronsV blocking Acetylcholinesterasesecreting GABA onto somatic lower motor neuronsV increasing the number of motor unitsdecreasing the number of motor unitsrecruiting more fast-twitch fibers than slow-twitch fibers

Answered: Select ALL that would INCREASE the…

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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Question

Select ALL that would INCREASE the strength of a muscle contraction:
recruiting more slow-twitch fibers than fast-twitch fibers
increasing Acetylcholinesterase
V secreting glutamate onto somatic lower motor neurons
V blocking Acetylcholinesterase
secreting GABA onto somatic lower motor neurons
V increasing the number of motor units
decreasing the number of motor units
recruiting more fast-twitch fibers than slow-twitch fibers

Expert Solution

Step 1 Introduction on Skeletal Muscles Contraction:

Skeletal muscle cells are long and cylindrical, has voluntary control in action that is in under our control. They are multinucleated and contain cellular organelles found in other cells, such as mitochondria and endoplasmic reticulum. There are specialized smooth endoplasmic reticulum for storage, release and retrieval of calcium ions depending on what actions needed to be performed by the muscles. They have sarcomere as the smallest functional unit which is highly organized and the length shortens or lengthens based on contraction and relaxation. There are actin, myosin, troponin, tropomyosin proteins and calcium involved exclusively behind the contraction of muscles.