By James D. Fix
Designed essentially for scientific and dental scholars getting ready for the USMLE Step 1 and different examinations, this ebook offers the necessities of human neuroanatomy in a succinct define layout with ample illustrations. Over six hundred USMLE-style questions with whole solutions and motives are integrated, a few on the finish of every bankruptcy and a few in an end-of-book entire exam. This variation makes use of colour to delineate neuroanatomical pathways and spotlight medical correlations. New medical MRI and MRA photos were extra. Questions stick to the scientific vignette-based structure of the present USMLE. A spouse site on thePoint bargains speedy entry to the whole, absolutely searchable textual content and all questions from the ebook.
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Additional info for BRS Neuroanatomy, 4th Edition
Note the large lumbar feeder artery of Adamkiewicz, whose origin varies from segments T12 to L4. Stippled areas show spinal cord segments that are vulnerable to hypoperfusion. (Adapted from Parent A: Carpenter’s Human Neuroanatomy, 9th ed. ) III. • • • • Arteries of the Brain (Figures 3-2 through 3-6) supply 15% of the cardiac output to the brain. provide the brain with 20% of the oxygen used by the body. have a normal blood flow of 50 ml/100 g of brain tissue per minute. consist of two pairs of vessels, the internal carotid arteries and the vertebral arteries, and their divisions.
1. Anterior spinal artery • supplies the anterior two-thirds of the spinal cord, including the anterior and lateral horns. • supplies the pyramids, medial lemniscus, and intra-axial fibers of the hypoglossal nerve (cranial nerve [CN] XII) in the medulla. 2. Posterior spinal arteries • supply the posterior third of the spinal cord, including the posterior horns and columns. • supply the gracile and cuneate fasciculi and nuclei in the medulla. B. Segmental arteries • arise from the aorta, vertebral arteries, and common iliac arteries as medullary arteries, which supply the anterior and posterior spinal arteries.
Contains the superior and inferior sagittal sinuses between its two layers. qxd 06/06/2007 6:20 AM Page 25 TechBooks [PPG -QUARK] MENINGES AND CEREBROSPINAL FLUID (CSF) 25 Dura mater Epidural space and veins Subdural space Pia mater Denticulate ligament Ligamentum flavum Spinal ganglion Arachnoid and post. arach. septum Subarachnoid space Dorsal root Ventral root Dorsal ramus White ramus Ventral ramus Gray ramus Vertebral veins Rami communicantes Vertebral artery Figure 2-1. Cross-section of the spinal cord and its meningeal investments.