sulcus
Anatomical fold line
A sulcus is a groove or furrow, used primarily in anatomy.
The brain's surface is folded into ridges (gyri) separated by sulci—the plural form.
Sulci also appear in descriptions of bones, teeth, and other biological structures: the central sulcus divides the frontal and parietal lobes.
The term is technical, rarely appearing outside medical or scientific contexts.
Narrow trench in earth
- channelPassage for transmission
- fissureNarrow crack in rock
- indentationInward cut or setback
- depressionProlonged low state
trench · cleft · notch · incision · score · crease · gouge · slot
Cerebral cortex ridge
- cortexOrgan's external tissue
- fissureNarrow crack in rock
- cerebralRelating to intellect
- frontalOf the fore side
parietal · temporal · occipital · insula · central · lateral · collateral · hippocampal
Plant's photosynthetic organ
- veinVessel toward heart
- stemPlant's central axis
- seedEmbryonic plant capsule
- petalBloom's colorful segment
plant · venation · midrib · groove · channel · indentation · morphology
Interlocking bones of spine
dorsal · ventral · nerve root · spinal cord · foramen · intervertebral · median · anterolateral
furrow
Narrow trench in earth
- channelPassage for transmission
- fissureNarrow crack in rock
- indentationInward cut or setback
depression · trench · cleft · notch · incision · score · crease · gouge · slot · ridge
gyrus
Cerebral cortex ridge
frontal · parietal · temporal · occipital · insula · central · lateral · collateral · hippocampal · olfactory
leaf
Plant's photosynthetic organ
petal · plant · venation · midrib · groove · channel · indentation · morphology
vertebrae
Interlocking bones of spine
cervical · dorsal · ventral · nerve root · spinal cord · foramen · intervertebral · median · anterolateral · groove
channel
Passage for transmission
ravine · canyon · gorge · valley · incision · weathering · runoff · sediment · drainage · landform
sulcusridge
Narrow raised strip
crest · elevation · protrusion · prominence · convexity