This is a paid asset, but now you can download Heart Animated Free.
Detail this asset from Unity Store: Original Link
Heart Animated v1.0.1 (Latest version)
“If possible, please buy the package to support the developer”
Anatomically detailed and realistic heart, with HD textures with normal maps for better and real results.
Also fully animated with complete cardiac cycle.
Tris = 81 k aprox. Verts = 51 k aprox
other samples of animated hearts
on the store:
click here option one
click here option two
More stuff on the store:click here
for support: contact us