Sensory and Motor Pathways: A Detailed Look

Posted by on Jan 20, 2025 in Biomedical Sciences | 0 comments

Sensory Pathways

Nerve impulses from touch, pressure, heat, and cold receptors travel to the sensory cortex, triggering feelings. More sensitive body areas have a larger mapped cortex region. The sensory homunculus visually represents body regions relative to their allocated cerebral cortex, with larger areas like the face and extremities being the most sensitive.

Nerve impulses travel in bundles within the spinal cord, forming the spinothalamic pathway and the route of Goll and Burdach.

a. Spinothalamic

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Leukoplakia: Causes, Types, Diagnosis, and Treatment

Posted by on Jan 6, 2025 in Biomedical Sciences | 0 comments

Leukoplakia: A Comprehensive Review

Definition

Leukoplakia is a white patch or plaque that cannot be characterized clinically or pathologically as any other disease.

Modified Definition (Malmo, Sweden, 1983)

A white patch or plaque that cannot be characterized clinically or pathologically as any other disease and is not associated with any physical or chemical agent except the use of tobacco.

Etiology: Local Factors

  • Tobacco products (smoked and smokeless)
  • Alcohol
  • Chronic irritation
  • Candidiasis
  • Electrogalvanic
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