The answer is sulcus.
They are called sulci and they allow for a greater surface area of the cortex of the brain which is where the majority of the neurons reside.
Postcentral gyrus, or the parietal lobe [Edit: The postcentral gyrus is posterior to the central sulcus, not anterior. The primary motor cortex is located directly anterior to the central sulcus.]
the central sulcus!
lateral sulcus
Gingivitis is distinguished from periodontal disease (periodontitis) by the lack of periodontal attachment loss (PAL). PAL is determined by measuring the depth of the space between the tooth and gum (sulcus) with a dental probe, and by measuring the distance from the depth of the sulcus to the cemento-enamel junction, the point dividing the clinical crown from the root of the tooth. A probe depth of 3mm or less is typically considered to be normal. The deeper the depth, the more advanced the periodontitis. Gingivitis is simply inflamed gums with no loss of periodontal attachment. Once there is measurable loss of attachment, it is called periodontitis.
If you're referring to the cortex of bone, that would be trabeculae.
The answer is sulcus.
To Determine the depth of the sulcus , six sites are probed. There are three sites on the facial, including mesiofacial, mid facial, and disto facial, and three sites on the lingual, including mesiolingual, mid lingual, and disto lingual.
Promachoteuthis sulcus was created in 2007.
The Sullen Sulcus was created in 2002.
Sulci is the plural of sulcus
Fissure is deeper than a sulcus
Interventricular Sulcus
Central Sulcus
is a clinical term in dentistry. CAL = the depth measured from the CEJ (cemento-enamel junction) to the bottom of the gingival sulcus. It indicates the amount of attachment that has been lost
costophrenic sulcus means fluid in the pleural cavity