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Review: Introduction to the Muscular System

Here is what we have learned from Introduction to the Muscular System:

  • One of the most predominant characteristics of skeletal muscle tissue is its contractility and nearly all movement in the body is the result of muscle contraction.
  • Four functions of muscle contraction are movement, posture, joint stability, and heat production.
  • Three types of muscle are skeletal, smooth, and cardiac.
  • Each muscle fiber is surrounded by endomysium. The fibers are collected into bundles covered by perimysium. Many bundles, or fasciculi, are wrapped together by the epimysium to form a whole muscle.
  • Muscles are attached to bones by tendons.
  • Muscle features such as size, shape, direction of fibers, location, number of origin, origin and insertion, and action are often used in naming muscles.
  • Four major muscle groups of the body include:
    • Muscles of the head and neck;
    • Muscles of the trunk;
    • Muscles of the upper extremity; and
    • Muscles of the lower extremity.

Quiz

Go to the quiz if you want to test yourself on the material you learned in this section. The quiz is a self-assessment tool and no records are kept. The feedback will let you know if you have answered the questions correctly. You can take the quiz as many times as you want.

Click here to take the quiz.