Which of the following structures would be found in a skeletal muscle fiber? (select all that apply) mitochondria gap junctions actin filaments nuclei sarcoplasm synaptic vesicles myofilaments sarcoplasmic reticulum The sliding-filament theory of muscle contraction states that sarcomeres lengthen during contraction sarcomeres shorten during contraction Omyosin filaments shorten during contraction actin filaments shorten during contraction actin filaments shorten during contraction, myosin filaments shorten during contraction and sarcomeres shorten during contraction

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Which of the following structures would be found in a skeletal muscle fiber? (select all that apply)
mitochondria
gap junctions
actin filaments
nuclei
sarcoplasm
synaptic vesicles
myofilaments
sarcoplasmic reticulum
Transcribed Image Text:Which of the following structures would be found in a skeletal muscle fiber? (select all that apply) mitochondria gap junctions actin filaments nuclei sarcoplasm synaptic vesicles myofilaments sarcoplasmic reticulum
The sliding-filament theory of muscle contraction states that
sarcomeres lengthen during contraction
sarcomeres shorten during contraction
Omyosin filaments shorten during contraction
actin filaments shorten during contraction
actin filaments shorten during contraction, myosin filaments shorten during contraction and sarcomeres shorten during contraction
Transcribed Image Text:The sliding-filament theory of muscle contraction states that sarcomeres lengthen during contraction sarcomeres shorten during contraction Omyosin filaments shorten during contraction actin filaments shorten during contraction actin filaments shorten during contraction, myosin filaments shorten during contraction and sarcomeres shorten during contraction
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