píng​huá​jī

smooth muscle

平滑肌 píng​huá​jī
smooth muscle noun
Involuntary, non-striated muscle tissue found in the walls of internal organs such as the stomach, intestines, and blood vessels.

Most human internal organs are composed of smooth muscle.

Frequency

Movie subtitles
0.180 per million appears in 0% of films
Written text
3.60 per million

Sources

Definitions
CC-CEDICT