Sulcus (morphology)

In biological morphology and anatomy, a sulcus (pl. sulci) is a furrow or fissure. It may be a groove in the surface of a limb or an organ, notably in the surface of the brain, but also in the lungs, certain muscles (including the heart), as well as in bones, and elsewhere. Many sulci are the product of a surface fold or junction, such as in the gums, where they fold around the neck of the tooth.

Gingival sulcus at neck of mammalian tooth
Pollen grains of Cercis are sulcate, with reticulate surface.
Rotating image of human brain, illustrating the lateral sulcus in the brain.

In invertebrate zoology, a sulcus is a fold, groove, or boundary, especially at the edges of sclerites or between segments.

Examples in anatomy

In the brain

Elsewhere

gollark: Is SAS actually better than SATA?
gollark: Just use RAID0 on 10-year-old hard drives purchased from ebay in a heated case in a washing machine.
gollark: Your baby photographs are priceless. If they're gone, you can't get them back again. And who knows, maybe you have 10TB of them somehow.
gollark: Did you mean to ping the person asking about the server?
gollark: A modern Pentium might be faster than an old i3. They improve the IPC sometimes.

See also

References

  1. Larkins, Christine E., and Martin J. Cohn. "Phallus development in the turtle Trachemys scripta." Sexual Development 9.1 (2015): 34-42.
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