sensory system examination
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The sensory system examination is divided into evaluating superficial sensation, deep sensation, and cortical sensations. Superficial sensation tests pain, touch, and temperature using pin pricks, cotton, and hot/cold test tubes to detect hemihypothesia, level of lesion, stocking glove patterns, and radicular loss. Deep sensation evaluates joint position, vibration, and muscle strength. Cortical sensations include tactile localization, two-point discrimination, graphosthesia, stereognosis, and sensory attention.
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In This presentation, I have explained the sensory Component of the nervous system particularly pain perception.
spinal cord
This document provides an overview of the nervous system with a focus on the spinal cord. It discusses the anatomy and functions of the spinal cord, including its meninges, cross section, nuclei, tracts, nerves, and plexuses. It also covers spinal cord injuries and the Unani concept of the spinal cord from early Islamic physicians. In summary, the document outlines the key components and functions of the spinal cord, describes its internal structures and surrounding protective layers, and discusses spinal nerve roots and plexuses as well as historic Unani perspectives.
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sensory system examination
- 1. neurology Sensory system Examination Dr mohamed rizk khodair lecturer of neurology October 6 university Mohamedrizk.med@edu.edu.eg والجراحة الطب كلية
- 2. The sensory system evaluation is divided into the following Superficial sensation : Pain using pin prick Touch using a piece of cotton Temperature using hot and cold test tubes 1- compare both side to detect hemihypothesia 2- search to detect level in ( extra medullary) and search To detect jack sensory loss in( intramedullary lesion ) 3- search to detect stock and glove hypothesia in PN 4- compare different dermatomes ( for radicular sensory Loss ) Head UL trunk LL proximal and distal
- 3. Deep sensation 1- joint sense ( sense of position and movement ) Big toe 2- bone sense : vibration sense Medial malleolus : represents PN ASIS : represents Posterior column Forehead : represents thalamus 3- muscle sense : squeeze calf muscle 4- nerve sense Romberg sign ..!!
- 4. Cortical sensations Tactile localization : localize the site of pin prick over body Tactile discrimination “ 2-point discrimination “ : localize 2 stimulation pin pricks , normally they can be felt distinct provided their minimal distance between them ( 5 mm on finger and 5 cm over back ) Graphosthesia : recognition number or letter drawn on hands Stereognosis : recognition familiar object in hand (key) Sensory attention ( perceptual rivalry ) : 2 simultaneous pricks at 2 corresponding sites of body are felt on each side at same moment