Dr Najeeb Neuroanatomy Notes [updated] Instant

| Feature | UMN Lesion (e.g., stroke) | LMN Lesion (e.g., nerve cut) | |--------|----------------------|----------------------| | Tone | Spastic | Flaccid | | Reflexes | Hyperreflexia | Hyporeflexia | | Babinski | Present (upgoing toe) | Absent (downgoing) | | Atrophy | None (late, from disuse) | Severe, early | | Fasciculations | No | Yes |

and Upper vs. Lower Motor Neuron lesions?

: Detailed breakdowns of Upper vs. Lower Motor Neuron lesions and Spinal Cord damage. The Cerebellum & Basal Ganglia dr najeeb neuroanatomy notes

The retina is actually an "outpost" of the brain.

: Understanding motor control and coordination through topographical representation. Where to Find & How to Use Them | Feature | UMN Lesion (e

The deep insight: The UMN is the software. The LMN is the hardware. Damage the software → bugs and over-reactions. Damage the hardware → silence and decay.

Dr. Najeeb's neuroanatomy notes are widely recognized by medical students for transforming one of the most complex subjects in medical school into digestible, visual concepts. These notes typically serve as a written and illustrated companion to his world-famous video lectures. Core Features of Dr. Najeeb’s Neuroanatomy Notes Hand-Drawn Visuals Lower Motor Neuron lesions and Spinal Cord damage

These are detailed notes , not an outline. You cannot cram from them the night before an exam—they require time to digest.