It means that you control what the muscles do.
• SKELETAL MUSCLE (noun). The noun SKELETAL MUSCLE has 1 sense: 1. a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes. Familiarity information: SKELETAL MUSCLE used as a noun is very rare. Skeletal muscle. The tissue most commonly thought of as muscle is skeletal muscle. Skeletal muscles cover your skeleton, giving your body its shape. They are attached to your skeleton by strong, springy tendons or are directly connected to rough patches of bone. Skeletal muscles are under voluntary control, which means you consciously control what they do. Skeletal muscle is striated and voluntary. The word striated means striped and the significance of this term will become apparent when we consider the histology below. Skeletal muscle is the only type of muscle that we can consciously control through our nervous system. This is the reason it is also Hyponyms (each of the following is a kind of skeletal muscle): voluntary muscle (striated muscle that can be controlled voluntarily). rhomboid; rhomboid muscle (any of several muscles of the upper back that help move the shoulder blade). Skeletal muscles move the body. Skeletal muscle contractions pull on tendons, which are attached to bones. If contraction of the muscle causes the muscle to shorten, the bone and, thus, the body part will move. For example, the biceps brachii is attached to the shoulder and the forearm bones. Classified under: Nouns denoting body parts. Hypernyms (voluntary muscle is a kind of...): skeletal muscle; striated muscle (a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes).
http://www.audioenglish.org/dictionary/skeletal_muscle.htm http://www.bbc.co.uk/science/humanbody/body/factfiles/skeletalsmoothandcardiac/quadriceps_animation.shtml http://droualb.faculty.mjc.edu/Course%20Materials/Elementary%20Anatomy%20and%20Physiology%2050/Lecture%20outlines/skeletal_muscle_physiology.htm http://www.audioenglish.org/dictionary/skeletal_muscle.htm http://study.com/academy/lesson/major-skeletal-muscle-functions.html http://www.audioenglish.org/dictionary/voluntary_muscle.htm
skeletal muscle are voluntary what does that mean