What is sigmoid sulcus?
The inner surface of the mastoid portion of the temporal bone presents a deep, curved groove, the sigmoid sulcus, which lodges part of the transverse sinus; in it may be seen the opening of the mastoid foramen.
What is frontal crest?
: a median ridge on the internal surface of the vertical part of the human frontal bone.
What is the groove for superior sagittal sinus?
sagittal sulcus
Along the upper margin of parietal is a shallow groove, which, together with that on the opposite parietal, forms a channel, the sagittal sulcus, for the superior sagittal sinus; the edges of the sulcus afford attachment to the falx cerebri.
What is the sagittal sulcus?
The internal surface of the squama frontalis of the frontal bone is concave and presents in the upper part of the middle line a vertical groove, the sagittal sulcus, the edges of which unite below to form a ridge, the frontal crest; the sulcus lodges the superior sagittal sinus, while its margins and the crest afford …
What sulcus means?
furrow, groove
Definition of sulcus : furrow, groove especially : a shallow furrow on the surface of the brain separating adjacent convolutions.
What sinus drains the frontal lobe?
Anatomy of Cerebral Veins and Dural Sinuses The SSS originates from the anterior part of the frontal lobe at the foramen caecum and drains into the torcular herophili [4].
What forms the superior sagittal sinus?
The superior sagittal sinus is one of several endothelial-lined spaces in the brain known collectively as the dural venous sinuses. It lies within the superior convex margin of the falx cerebri which attaches to the internal surface of the calvaria (in the midline).
Where is the sagittal suture?
Sagittal suture. This extends from the front of the head to the back, down the middle of the top of the head. The 2 parietal bone plates meet at the sagittal suture.
Where is the sagittal fissure?
A sagittal groove on the undersurface of the liver formed by the fossa vesicae felleae anteriorly and the sulcus venae cavae posteriorly.
What is another word for sulcus?
What is another word for sulcus?
| furrow | crease |
|---|---|
| rivel | ruck |
| scar | cleft |
| indentation | plica |
| crow’s-foot | groove |
What is sulcus and gyrus?
In neuroanatomy, a sulcus (Latin: “furrow”, pl. sulci) is a depression or groove in the cerebral cortex. It surrounds a gyrus (pl. gyri), creating the characteristic folded appearance of the brain in humans and other mammals. The larger sulci are usually called fissures.