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This is a photograph of an open textbook, likely a biology or anatomy textbook, showing a section on the nervous system. The book is lying flat, with the left page featuring text and a diagram, and the right page showing more text and a table. The left page has detailed text describing motor neurons and their pathways. Below the text, a diagram illustrates a reflex arc, showing sensory nerve fibers, a posterior root ganglion, a mixed nerve, and motor nerve fibers leading to a cross-section of the spinal cord. Labels such as "Sensory nerve fibre," "Posterior root ganglion," "Mixed nerve," "Motor nerve fibre," "Connector neurone," and "Spinal cord" are visible. The text mentions "upper motor neurones" and "lower motor neurones," and the diagram illustrates their connections within the spinal cord. The right page contains a table titled "Table 7.1 Extrapryamidal upper motor neurons: origins and tracts," with columns for "Origin," "Name of tract," "Size in spinal cord," and "Functions." The table lists various tracts like the "Rubrospinal tract," "Reticulospinal tract," and "Vestibulospinal tract," along with their functions such as "Control of skilled muscle movement" and "Maintenance of posture and balance." Below the table, text discusses "Spinal reflexes," detailing their components: "sensory neurones," "connector neurones," and "lower motor neurones." The text explains how sensory impulses trigger reflex actions involving these neurons. A page number "159" is visible on the right side of this page. The overall scene is that of a study or learning environment, with the focus solely on the educational content of the textbook. No people, weather, or specific time of day are discernible. The lighting appears to be artificial or ambient indoor lighting, illuminating the pages of the book.
Symbol
03304
Volume
11,550
Creator
+$0.03
Revenue
+$0.04
TVL
$2.86
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