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Clevenger's fissure: found in the inferior temporal lobe of the brain; Collateral fissure: found in the inferior surface of the cerebrum. Fissure of Bichat: found below the corpus callosum in the cerebellum of the brain. Lateral sulcus or Fissure of Sylvius: separates the frontal and parietal lobes of the brain from the temporal lobe.
Marie François Xavier Bichat (/ b iː ˈ ʃ ɑː /; [3] French:; 14 November 1771 – 22 July 1802) [4] was a French anatomist and pathologist, known as the father of modern histology. [ 5 ] [ a ] Although he worked without a microscope , Bichat distinguished 21 types of elementary tissues from which the organs of the human body are composed ...
The porta hepatis or transverse fissure of the liver is a short but deep fissure, about 5 cm long, extending transversely beneath the left portion of the right lobe of the liver, nearer its posterior surface than its anterior border.
Fission, in biology, is the division of a single entity into two or more parts and the regeneration of those parts to separate entities resembling the original. The object experiencing fission is usually a cell , but the term may also refer to how organisms , bodies, populations , or species split into discrete parts.
In neuroanatomy, a sulcus (Latin: "furrow"; pl.: sulci) is a shallow depression or groove in the cerebral cortex.One or more sulci surround a gyrus (pl. gyri), a ridge on the surface of the cortex, creating the characteristic folded appearance of the brain in humans and most other mammals.
The buccal fat pad (also called Bichat’s fat pad, after Xavier Bichat, and the buccal pad of fat) is one of several encapsulated fat masses in the cheek. It is a deep fat pad located on either side of the face between the buccinator muscle and several more superficial muscles (including the masseter, the zygomaticus major, and the zygomaticus minor). [1]
It then becomes a distinct invagination that lengthens towards the lateral sulcus and towards the longitudinal fissure [4] at approximately 22 to 23 weeks of gestational age. [ 5 ] Between 2 and 3 years of age, the landmark ‘Pli de Passage Frontoparietal Moyen’ (PPFM), which is a depression buried at the central part of the central sulcus ...
Goodsall's rule relates the external opening (in the perianal skin) of an anal fistula to its internal opening (in the anal canal). It states that if the perianal skin opening is posterior to the transverse anal line, the fistulous tract will open into the anal canal in the midline posteriorly, sometimes taking a curvilinear course.