About 358 results
Open links in new tab
  1. Human muscle system | Functions, Diagram, & Facts | Britannica

    Nov 24, 2025 · The following sections provide a basic framework for the understanding of gross human muscular anatomy, with descriptions of the large muscle groups and their actions.

  2. Human muscle system - Shoulder Muscles, Joints, Movements

    Nov 24, 2025 · Human muscle system - Shoulder Muscles, Joints, Movements: The shoulder is a complex ball-and-socket joint comprising the head of the humerus, the clavicle (collarbone), and the …

  3. Human muscle system - Abdominal Muscles, Anatomy, Function

    Nov 24, 2025 · Human muscle system - Abdominal Muscles, Anatomy, Function: There are three muscular layers of the abdominal wall, with a fourth layer in the middle anterior region.

  4. Muscle | Systems, Types, Tissue, & Facts | Britannica

    Dec 22, 2025 · This article consists of a comparative study of the muscle systems of various animals, including an explanation of the process of muscle contraction. For an account of the human muscle …

  5. Skeletal muscle | Definition & Function | Britannica

    Dec 13, 2025 · The following sections provide a basic framework for the understanding of gross human muscular anatomy, with descriptions of the large muscle groups and their actions.

  6. Human muscle system - Evolution, Anatomy, Function | Britannica

    Nov 24, 2025 · Human muscle system - Evolution, Anatomy, Function: The arrangement of striated muscle in modern humans conforms to the basic plan seen in all pronograde quadrupedal …

  7. Human muscle system - Upper Limb Changes | Britannica

    Nov 24, 2025 · Human muscle system - Upper Limb Changes: The human upper limb has retained an overall generalized structure, with its details adapted to upright existence.

  8. Human body systems | Muscle, Skeletal, Respiratory, Circulatory ...

    The muscle and skeletal systems, for example, act together to move the body. The skeletal system also protectively houses internal organs, such as the brain, heart, and lungs, while the muscle system …

  9. Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica

    Dec 6, 2025 · The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and another layer, the endocardium, lines the …

  10. human muscle system - Students | Britannica Kids | Homework Help

    muscles of the upper arm; human muscle system Muscles of the human forearm striated muscle; human biceps muscle muscles of the forearm; human muscle system muscles of the abdominal wall …