How Small Is Human Smooth Muscle Cell? 100 µm Compared to Scale

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Smooth muscle cells line blood vessels and intestines, contracting involuntarily to regulate organ function.

Source: Alberts, Molecular Biology of the Cell; Histology Guide, University of Leeds

Micro World

Name	Size	Compared with Human Smooth Muscle Cell
Ascaris lumbricoides Egg	60 µm	0.6×
Human Cheek Epithelial Cell	60 µm	0.6×
Pine Pollen Grain	70 µm	0.7×
Human Adipocyte	100 µm	same size
Euplotes	100 µm	same size
Human Cardiomyocyte	100 µm	same size
Human Smooth Muscle Cell	100 µm	this page
Onion Epidermal Cell	100 µm	same size
Didinium	150 µm	1.5×
Coscinodiscus Diatom	150 µm	1.5×

Test your sense of scale

Which is bigger: Human Smooth Muscle Cell or Pine Pollen Grain?

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