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The largest and deepest fissure in the cerebellum is named the horizontal fissure (or horizontal sulcus). It commences in front of the pons , and passes horizontally around the free margin of the hemisphere to the middle line behind, and divides the cerebellum into an upper and a lower portion.
Horizontal fissure may refer to: Horizontal fissure of cerebellum; ... See also. Fissure (anatomy) Sulcus (morphology) This page was last edited on 21 ...
In biological morphology and anatomy, a sulcus (pl.: sulci) is a furrow or fissure (Latin fissura, pl.: fissurae). It may be a groove, natural division, deep furrow, elongated cleft, or tear in the surface of a limb or an organ, most notably on the surface of the brain , but also in the lungs , certain muscles (including the heart ), as well as ...
The central lobule is the second lobule of the upper portion of the vermis on the superoinferior axis. The culmen is the third and largest lobule of the upper portion of the vermis on the superoinferior axis. It is separated from the declive by the primary fissure and is related with the anterior quadrangular lobule of the hemisphere. The ...
The falx cerebri is a strong, crescent-shaped sheet of dura mater lying in the sagittal plane between the two cerebral hemispheres. [3] It is one of four dural partitions of the brain along with the falx cerebelli, tentorium cerebelli, and diaphragma sellae; it is formed through invagination of the dura mater into the longitudinal fissure between the cerebral hemispheres.
Transient tachypnea usually occurs in term neonates and has normal to slightly increased lung volumes with perihilar linear densities from fissural fluid, with a characteristic prominent line in the horizontal fissure of the right lung.
The angle formed in turn creates a subarachnoid cistern, the cerebellopontine angle cistern. The pia mater follows the outline of the fissure and the arachnoid mater continues across the divide so that the subarachnoid space is dilated at this area, forming the cerebellopontine angle cistern. [citation needed]
The anterior median fissure of the spinal cord is a deep midline groove of the anterior spinal cord. [ 1 ] : 486 It divides the white matter of the anterior spinal cord nearly in two. [ 1 ] : 487 The spinal pia mater extends into the fissure to line the surfaces of the spinal cord.