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🧠 Brain – Major Sulci and Gyri
- 🧩 Central sulcus – Separates frontal and parietal lobes.
- 🌀 Lateral sulcus (Sylvian fissure) – Divides temporal from other lobes.
- 🧠 Precentral gyrus – Primary motor cortex.
- 🧠 Postcentral gyrus – Primary sensory cortex.
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🧠 Brain – Deep Structures
- 🔗 Corpus callosum – Connects both hemispheres.
- 🎯 Thalamus – Relay of sensory/motor input.
- ⚙️ Brainstem – Vital autonomic control.
- 🍒 Cerebellar tonsils – Chiari malformation relevance.
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🧠 Brain – Ventricular System & Craniometrics
- 🔄 Foramen of Monro – Lateral to 3rd ventricle.
- 🧬 Aqueduct of Sylvius – 3rd to 4th ventricle.
- 📍 Bregma – Craniometric surgical landmark.
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🦴 Spine – Surface & Vertebral Landmarks
- 📌 T4 – Nipple line.
- 📌 T10 – Umbilicus level.
- 📏 L4 – Level of iliac crest (lumbar puncture).
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🦴 Spine – Internal Neural Structures
- ⚡ Conus medullaris – Cord ends (L1–L2).
- 🧵 Cauda equina – Nerve root bundle.
- 🛡️ Dural sac – Ends at S2.
- 🪢 Filum terminale – Cord anchoring.
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🦴 Spine – Key Vertebrae & Foramina
- 🌀 C2 (Axis) – Dens for rotation.
- 💉 L4–L5 – Common for lumbar puncture.
- 🔌 Intervertebral foramen – Nerve exits.
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