striated muscle
Definition
Noun: * Striated Muscle: A type of muscle tissue characterized by a striped or banded appearance under a microscope. It is typically attached to bones by tendons and is responsible for voluntary movements of the skeleton.
Usage
- Striated muscle is under conscious control, allowing for deliberate actions like walking, grasping, or talking.
- This type of muscle is also known as skeletal muscle.
- The characteristic stripes are due to the organized arrangement of contractile proteins (actin and myosin) within the muscle fibers.
Examples
- The biceps in your arm is a striated muscle.
- Striated muscle contracts quickly and powerfully but tires relatively easily compared to cardiac muscle.
- Weightlifting is an exercise designed to strengthen striated muscle.
Advanced Usage
- Histological Identification: In biology and medicine, the term is used to describe muscle tissue based on its microscopic appearance, distinguishing it from smooth (non-striated) muscle.
- Neuromuscular Junction: Striated muscle requires a signal from a motor neuron at a specialized synapse called the neuromuscular junction to contract.
Variants and Related Words
- Skeletal Muscle (n): A direct synonym for striated muscle, emphasizing its common attachment to the skeleton.
- Voluntary Muscle (n): Another synonym highlighting that its contraction is consciously controlled.
- Striation (n): Refers to the striped pattern itself. "The striations of the muscle fiber are visible under high magnification."
Synonyms
- Skeletal muscle
- Voluntary muscle
Antonyms
- Smooth Muscle: Muscle tissue lacking striations, found in organs like the stomach and blood vessels, and controlled involuntarily.
- Cardiac Muscle: The striated muscle found only in the heart, which contracts involuntarily.
Related Phrases / Terms
- Muscle Fiber: The elongated cell that makes up striated muscle.
- Sarcomere: The basic repeating unit within a striated muscle fiber that gives it its striped appearance.
- Tendon: The fibrous connective tissue that attaches striated muscle to bone.
Noun
-
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
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