https://wiki.scott5.org/index.php?action=history&feed=atom&title=Brain 2026-04-13T07:17:26Z Revision history for this page on the wiki MediaWiki 1.43.1 https://wiki.scott5.org/index.php?title=Brain&diff=459&oldid=prev 2011-02-04T18:32:53Z

<p>moved <a href="/Brains" class="mw-redirect" title="Brains">Brains</a> to <a href="/Brain" title="Brain">Brain</a></p> <p><b>New page</b></p><div>== Orientation ==<br /> * Left and right divided by &#039;&#039;&#039;corpus callosum&#039;&#039;&#039;, which can be thought of as the midline.<br /> * Away from midline is &#039;&#039;&#039;lateral&#039;&#039;&#039;; toward midline is &#039;&#039;&#039;medial&#039;&#039;&#039;.<br /> * &#039;&#039;&#039;Proximal&#039;&#039;&#039; means closer; &#039;&#039;&#039;distal&#039;&#039;&#039; means farther<br /> * &#039;&#039;&#039;rostral/anterior&#039;&#039;&#039; = forehead; &#039;&#039;&#039;caudal/posterior&#039;&#039;&#039; = back of head<br /> * &#039;&#039;&#039;dorsal/superior&#039;&#039;&#039; = top; &#039;&#039;&#039;ventral/inferior&#039;&#039;&#039; = bottom<br /> * http://serendip.brynmawr.edu/bb/kinser/BrainInfo.html<br /> <br /> == Parts ==<br /> [[Image: brain-divisions.gif]]<br /> [[Image: humanlobes.gif|x269px]]<br /> [[Image: brainlabel.gif|x269px]]<br /> * forebrain<br /> ** &#039;&#039;&#039;cerebrum&#039;&#039;&#039; (cerebral cortex)<br /> *** gigantic crumpled sheet of tissue on the outside (surface area 1/4 sq meter)<br /> *** folds are &#039;&#039;&#039;sulci&#039;&#039;&#039;&lt;nowiki&gt;; bulges are &lt;/nowiki&gt;&#039;&#039;&#039;gyri&#039;&#039;&#039;<br /> *** divided into four lobes:<br /> **** frontal - reasoning<br /> **** parietal - recognition, perception, orientation (separated from frontal by &#039;&#039;&#039;central sulcus&#039;&#039;&#039;)<br /> **** occipetal - vision<br /> **** temporal - memory, language (separated from parietal and frontal by &#039;&#039;&#039;Sylvan fissure&#039;&#039;&#039;)<br /> * midbrain<br /> ** &#039;&#039;&#039;thalamus&#039;&#039;&#039; - relays motor inputs to cerebrum<br /> ** &#039;&#039;&#039;hypothalamus&#039;&#039;&#039; - regulates homeostasis, reflexes<br /> * hindbrain<br /> ** &#039;&#039;&#039;cerebellum&#039;&#039;&#039;<br /> *** a small, evolutionarily old cortex behind the brain stem<br /> *** coordinates basic motor function and cardiopulmonary activity<br /> ** &#039;&#039;&#039;pons&#039;&#039;&#039;<br /> ** &#039;&#039;&#039;medulla&#039;&#039;&#039;<br /> <br /> ==Other systems==<br /> <br /> * &#039;&#039;&#039;limbic system&#039;&#039;&#039;<br /> ** comprises thalamus, hypothalamus, amygdala, hippocampus<br /> ** emotional behavior<br /> * &#039;&#039;&#039;brain stem&#039;&#039;&#039;<br /> ** comprises pons, medualla</div>

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