|
|
 |
|
|
|
|
| smooth mus·cle (plural smooth mus·cles) |
noun |
|
| Definition: |
| |
uncontrolled muscle: a muscle found in the viscera that functions by slow contraction and is made up of layers of spindle-shaped cells lacking cross striations. Smooth muscle is not under voluntary control and is activated by the autonomic nervous system, hormones, or drugs.
|
|
|
|
