How Do You Spell VOLUNTARY MUSCLE?

1. Voluntary muscle, also known as skeletal muscle, refers to a specialized type of muscle tissue that is primarily responsible for voluntary movements of the body. It is attached to the bones of the skeletal system by tendons, allowing for movement and locomotion. Voluntary muscle is under conscious control, meaning that individuals can choose to consciously activate and control its contraction or relaxation.

   These muscles are striated in appearance, characterized by alternating light and dark bands, which gives them their distinctive striped or striated appearance under a microscope. Each voluntary muscle consists of long, cylindrical cells called muscle fibers that are bundled together and encased in connective tissue sheaths. These muscle fibers contain multiple nuclei and are organized into fascicles.

   Voluntary muscle fibers are composed of smaller units called sarcomeres, which are the basic functional units responsible for muscle contraction. The sarcomeres contain two types of protein filaments, actin and myosin, which slide past each other during muscle contraction, enabling the muscle to shorten or contract.

   Muscle fibers receive signals from the nervous system to contract or relax through motor neurons, which transmit electrical impulses from the brain or spinal cord. This interaction between motor neurons and voluntary muscles allows individuals to consciously initiate and control movements such as walking, jumping, or waving their arms.

   In summary, voluntary muscles are skeletal muscles that are consciously controlled by the individual to enable movement. They are composed of long, striated muscle fibers that contract and relax in response to signals from the nervous system.

2. One whose action is under the control of the will; all the striated muscles, except the heart, are voluntary muscles.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

Common Misspellings for VOLUNTARY MUSCLE

The word "voluntary" originates from the Latin word "voluntarius", meaning "of one's free will" or "willingly". It is derived from the root word "velle", which means "to wish" or "to desire".

The term "muscle" comes from the Latin word "musculus", which translates to "little mouse". The term possibly refers to the appearance of muscles contracting and relaxing under the skin, resembling the movements of mice.

When combined, "voluntary muscle" refers to a type of muscle that is under the conscious control of an individual. Voluntary muscles are those that individuals can move intentionally, such as the muscles used to move the arms, legs, and other body parts.