The delicate, innermost layer adhering to the brain surface. 6. Blood Supply: The Circle of Willis
: Multiple dendrites, one axon (e.g., motor neurons).
Governs executive functions, voluntary motor control (via the precentral gyrus), motor speech (Broca's area), and personality.
Provides collateral circulation to the brain. neuroanatomy notes pdf
CSF reduces the effective weight of the brain and removes metabolic waste. It flows through a strict anatomical sequence:
Transmits pain, temperature, and crude touch. It decussates immediately within the spinal cord at the segment of entry. Major Descending (Motor) Tracts
Transmits fine touch, conscious proprioception, and vibration. It decussates in the medulla oblongata. The delicate, innermost layer adhering to the brain surface
Supporting cells (Astrocytes, Oligodendrocytes, Microglia). Synapses: The mechanism of neurotransmission. 4. Pathways and Systems Motor Pathways: Pyramidal and extrapyramidal tracts.
The resident macrophages of the CNS, responsible for immune defense and clearing cellular debris.
Static textbooks are great, but searchable, high-yield allow for rapid review and active recall. It flows through a strict anatomical sequence: Transmits
Located in the temporal lobe, it converts short-term memory into long-term memory.
The delicate, highly vascularized innermost layer that adheres directly to the contours of the brain and spinal cord. Ventricular System and Cerebrospinal Fluid (CSF)
Present only in T1–L2 and S2–S4 segments; contain autonomic motor neurons. High-Yield Ascending (Sensory) Tracts