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  1. Muscle - Wikipedia

    Muscle is a specialised soft tissue, one of the four basic types of animal tissues. There are three types of muscle tissues in vertebrates: skeletal muscle tissue, cardiac muscle tissue, and smooth muscle …

  2. Human muscle system | Functions, Diagram, & Facts | Britannica

    Apr 27, 2026 · Human muscle system, the muscles of the human body that work the skeletal system, that are under voluntary control, and that are concerned with movement, posture, and balance.

  3. Muscles of the Body: Types, Groups, Anatomy & Functions

    Jan 23, 2024 · Smooth muscle tissue lines some of your organs, but most organs are also made of other types of tissue, too. Providers sometimes refer to the muscular system as one anatomical group that …

  4. MuscleWiki - Free Exercise Library | Interactive Muscle Map

    Discover 2000+ exercises with our interactive muscle map. Click any muscle to see targeted exercises with video tutorials and step-by-step instructions. 100% free, no registration required.

  5. Interactive Guide to the Muscular System | Innerbody

    May 26, 2026 · There are three types of muscle tissue: Visceral, cardiac, and skeletal. Visceral muscle is found inside of organs like the stomach, intestines, and blood vessels. The weakest of all muscle …

  6. Human Muscle Anatomy: Clinically validated guide to every muscle

    May 7, 2026 · Explore human muscle anatomy in detail, including functions, major muscle groups & how muscles support movement, strength & body stability.

  7. Quick Facts:Muscles - Merck Manual Consumer Version

    Muscles are connected to bones by thick ropes of tissue called tendons When a muscle contracts, the tendons pull on both bones and move them in the direction the joint allows. Because muscles can …