The Muscular System Cardiac muscle cells are much shorter than cells in skeletal muscle and contractile units controlled by the nervous system.

Human Muscular System – The muscles of the human body are illustrated and explained in high detail in our exploration of muscular system anatomy.

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Exoskeleton of an insect and its relation to the muscular system. Image from Purves et al., Life: Fine structure of a muscle fiber. Image from Purves et al., Life

There’s a lot to learn when it comes to the muscular system, including not only the location of every muscle, but also their actions, and their origins and insertions.

Muscular System. Problems? Contact Murray Jensen. Photo courtesy of Gunther Muscle Simulation . Muscle Movie Simulation; Muscle Simulation – No questions ;

Muscular System. 1. A sarcomere is a section of a myofibril. During contraction, the muscle origin moves toward the insertion. All muscles cross at least one joint.

Muscular System Practice Quiz: Choose the best answer to each question. A muscle fascicle is a bundle of: a) myofibrils. b) fibers. c) filaments. d) fascia. 2.

The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture, and circulates blood

Chapter 10 Anatomy of the Muscular System 349 Figure 10-1Structure of a muscle organ.A, Note that the connective tissue coverings, the epimysium,