Posterior median sulcus of medulla oblongata
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| Brain: Posterior median sulcus of medulla oblongata | ||
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| Section of the medulla oblongata through the lower part of the decussation of the pyramids. 1. Anterior median fissure. 2. Posterior median sulcus. 3. Anterior column (in red), with 3’, anterior root. 4. Posterior column (in blue), with 4’, posterior roots. 5. Lateral cerebrospinal fasciculus. 6. Posterior funiculus. The red arrow, a, a’, indicates the course the lateral cerebrospinal fasciculus takes at the level of the decussation of the pyramids; the blue arrow, b, b’, indicates the course which the sensory fibers take. | ||
| Latin | sulcus medianus posterior medullae oblongatae | |
| Gray's | subject #187 767 | |
| Dorlands/Elsevier | s_28/12769164 | |
The posterior median sulcus of medulla oblongata (or posterior median fissure) is a narrow groove; and exists only in the closed part of the medulla oblongata; it becomes gradually shallower from below upward, and finally ends about the middle of the medulla oblongata, where the central canal expands into the cavity of the fourth ventricle.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
