involuntary muscle
(in-vol-un-tar-y-mus-cle)
6 syllables
Definition
noun. Muscle that contracts without conscious control, found in walls of internal organs such as the stomach and intestine, and in blood vessels.
Example Sentence
Involuntary muscles play a crucial role in digestion by controlling the movement of food through the digestive tract.
More Example Sentences
The heart is an example of an involuntary muscle that beats continuously without conscious effort.
Synonyms
smooth muscle; non-striated muscle; visceral muscle
Antonyms
voluntary muscle; skeletal muscle; striated muscle
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involuntary muscle
