Q:

What are some examples of voluntary muscles?

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Quick Answer

The muscles used to move bones and the muscles in the face are voluntary muscles. Voluntary muscles are the muscles a person chooses to move, unlike involuntary muscles, which are the muscles that are not consciously controlled.

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Full Answer

Each voluntary muscle helps a person move around. Most are connected to the bones by tendons, and the muscle runs along the length of the entire bone and is attached to another bone on the other side of the joint. The muscle moves the bone at the insertion. Voluntary muscles cannot extend on their own, so muscles must work in opposing pairs. The extensor is the contracting muscle, and the flexor is the expanding muscle.

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  • Q:

    What are examples of involuntary muscles?

    A:

    Examples of involuntary muscles, also known as smooth muscles, are the muscles of the urogenital tract, digestive tract, circulatory system and respiratory tract. Involuntary muscles are not controlled by the organism's will. Their actions are automatic and facilitated by the autonomic nervous system.

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  • Q:

    What are examples of flexor and extensor muscles?

    A:

    The Clermont College Biology Department lists examples of flexor muscles as the biceps brachii and the hamstrings, and some examples of extensor muscles are the triceps brachii, the quadriceps femoris and the gastrocnemius. One of the most well-known extensor muscles is the Achilles tendon.

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  • Q:

    Examples of Synergist Muscles?

    A:

    Synergistic muscles are muscles that have a similar and mutually helpful function or action. Mosby's medical dictionary defines synergistic muscles as groups of muscles that contract together to accomplish the same body movement. Synergistic muscles act as movable joints; they are sometimes referred to as neutralizers because they help to cancel out the motion of agonist muscles.

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    What are the symptoms of overactive adrenal glands?

    A:

    Symptoms of overactive adrenal glands include obesity that is centralized in the upper body, a round face, a hump of fat between the shoulders, weakness in the bones and muscles, thin or fragile skin, stretch marks and thin legs and arms. The condition can also cause high blood sugar, hypertension, excess growth of body hair and facial hair, stoppage of menstrual periods, reduced fertility and libido in men and severe fatigue. Those with the condition are said to have Cushing's syndrome.

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