**Which of the following are true? (choose all that apply)**- □ At maximal stimulus, there is no increase in muscle force because all of the muscle fibers have been stimulated.- □ A motor unit is a motor neuron and all of the muscle fibers it controls.- □ Wave summation is achieved by increasing the frequency that a muscle is stimulated.- □ The subthreshold voltage is the minimal voltage needed to force a muscle twitch.- □ The muscles of your eye would have smaller larger units than the muscles in your hamstrings. The image contains a graph illustrating muscle responses to stimuli. The graph is divided into four sections labeled A, B, C, and D. ### Description of the Graph:- **X-axis:** Represents time and is marked as "stimulus" with multiple equally spaced blue lines indicating points of stimulation.- **Y-axis:** Represents the amplitude of muscle response.### Sections and Responses:- **Section A**: Shows a series of individual muscle twitches with small peaks. Each peak corresponds to a single stimulus.- **Section B**: Depicts a pattern of wave summation, where the muscle contraction strength increases with each subsequent stimulus due to the stimuli being delivered in rapid succession.- **Section C**: Displays incomplete tetanus, where contractions begin to fuse together, but some relaxation is still visible between peaks.- **Section D**: Illustrates complete tetanus, where the muscle produces a smooth, sustained contraction with no relaxation, shown as a plateau at the highest amplitude.### Task:The text below the graph is an interactive question prompting users to label the proper muscle responses in the diagram:- **Label the proper muscle responses in the above diagram:** - Response "A" [Select] - Response "B" [Select] - Response "C" [Select] - Response "D" [Select]This educational content helps users understand how muscles respond to different frequencies of stimulation by observing changes in contraction patterns.

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Which of the following are true? (choose all that apply) O At maximal stimulus, there is no increase in muscle force because all of the muscle fibers have been stimulated. A motor unit is a motor neuron and all of the muscle fibers it controls wave summation is achieved by increasing the frequency that a muscle is stimulated The subthreshold voltage is the minimal voltage needed to force a mus le twitch the muscles of your eye would have smaller larger units than the muscles in your hamstrings

Which of the following are true? (choose all that apply) O At maximal stimulus, there is no increase in muscle force because all of the muscle fibers have been stimulated. A motor unit is a motor neuron and all of the muscle fibers it controls wave summation is achieved by increasing the frequency that a muscle is stimulated The subthreshold voltage is the minimal voltage needed to force a mus le twitch the muscles of your eye would have smaller larger units than the muscles in your hamstrings

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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