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Lateral sulcus or Fissure of Sylvius: separates the frontal and parietal lobes of the brain from the temporal lobe. Hippocampal sulcus: a sulcus that extends from the brain's corpus callosum to the tip of the temporal lobe. Horizontal fissure or Transverse fissure: found between the cerebrum and the cerebellum. Note that a "transverse fissure ...
The sulci and fissures are shallow and deep grooves respectively in the cortex, that organise the brain into its regions. [2] A sulcus is a shallow groove that surrounds a gyrus or part of a gyrus. A fissure is a deeper furrow that divides the brain into lobes, and also into the two hemispheres as the longitudinal fissure. [4]
English: Principal fissures and lobes of the cerebrum viewed laterally. Principal lobes of the cerebrum viewed laterally. Figure 728 from Gray's Anatomy. 4 lines note sulci as follows top center: Central sulcus; top right: Parieto-occipital sulcus; down left: Lateral sulcus
In neuroanatomy, the parieto-occipital sulcus (also called the parieto-occipital fissure) is a deep sulcus in the cerebral cortex that marks the boundary between the cuneus and precuneus, and also between the parietal and occipital lobes. Only a small part can be seen on the lateral surface of the hemisphere, its chief part being on the medial ...
The transverse occipital sulcus is a sulcus in the occipital lobe. The transverse occipital sulcus is continuous with the posterior end of the occipital ramus of the intraparietal sulcus , and runs across the upper part of the lobe, a short distance behind the parietooccipital fissure .
The hippocampal sulcus, also known as the hippocampal fissure, is a sulcus that separates the dentate gyrus from the subiculum and the CA1 field in the hippocampus. Structure [ edit ]
Note that a superior petrosal sinus enters the junction of the transverse and sigmoid sinuses. Also an inferior petrosal sinus enters the sigmoid sinus near the jugular foramen. The posterior cranial fossa is formed in the endocranium, and holds the most basal parts of the brain.
Variations of the clivus include fossa navicularis magna, craniopharyngeal canal, canalis basilaris medianus, and transverse basilar fissure (Saucer's fissure). [5] Ossification of the apical ligament of dens may also occur, resulting in a variant bony tubercle at the inferior end of the clivus. [ 5 ]