![Aaron Rutman, MD on Twitter: "Note on confusing location: The anterior perforated substance is at the basal forebrain ant to the optic tract, and behind the ant commissure & olfactory trigone; it's Aaron Rutman, MD on Twitter: "Note on confusing location: The anterior perforated substance is at the basal forebrain ant to the optic tract, and behind the ant commissure & olfactory trigone; it's](https://pbs.twimg.com/media/EoQNEnrVcAAVI3f.jpg)
Aaron Rutman, MD on Twitter: "Note on confusing location: The anterior perforated substance is at the basal forebrain ant to the optic tract, and behind the ant commissure & olfactory trigone; it's
![Sobotta 1909 fig.649 - Optic tract and optic chiasm with brain structures, inferior view - English labels | AnatomyTOOL Sobotta 1909 fig.649 - Optic tract and optic chiasm with brain structures, inferior view - English labels | AnatomyTOOL](https://anatomytool.org/sites/default/files/16036-568.png)
Sobotta 1909 fig.649 - Optic tract and optic chiasm with brain structures, inferior view - English labels | AnatomyTOOL
![Cunningham's Text-book of anatomy. Anatomy. PAETS DERIVED FROM THE DIENCEPHALON. 617 matter which surrounds the aqueduct is directly continuous with the gray matter of the substantia perforata posterior and tuber cinereum, Cunningham's Text-book of anatomy. Anatomy. PAETS DERIVED FROM THE DIENCEPHALON. 617 matter which surrounds the aqueduct is directly continuous with the gray matter of the substantia perforata posterior and tuber cinereum,](https://c8.alamy.com/zooms/9/2e9b4594ed0b4a12833a27b5702ee073/pfyb74.jpg)
Cunningham's Text-book of anatomy. Anatomy. PAETS DERIVED FROM THE DIENCEPHALON. 617 matter which surrounds the aqueduct is directly continuous with the gray matter of the substantia perforata posterior and tuber cinereum,
![File:Brain and spinal cord; a manual for the study of the morphology and fibre-tracts of the central nervous system (1912) (14577882167).jpg - Wikimedia Commons File:Brain and spinal cord; a manual for the study of the morphology and fibre-tracts of the central nervous system (1912) (14577882167).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/2/27/Brain_and_spinal_cord%3B_a_manual_for_the_study_of_the_morphology_and_fibre-tracts_of_the_central_nervous_system_%281912%29_%2814577882167%29.jpg)
File:Brain and spinal cord; a manual for the study of the morphology and fibre-tracts of the central nervous system (1912) (14577882167).jpg - Wikimedia Commons
Subjektive Wahrnehmung und objektive Beurteilung der Geruchsfunktion bei Patienten und Patientinnen mit ausgewählten Tremorerkr
![Cunningham's Text-book of anatomy. Anatomy. CORP. GEN. MED.. yj Substantia perforata " anterior g Optic tract (cut) BaMs peditn- 1 culi cerebri — Optic tract | Corpus geniculatuni late rale ^^— Cunningham's Text-book of anatomy. Anatomy. CORP. GEN. MED.. yj Substantia perforata " anterior g Optic tract (cut) BaMs peditn- 1 culi cerebri — Optic tract | Corpus geniculatuni late rale ^^—](https://c8.alamy.com/comp/PFYAYX/cunninghams-text-book-of-anatomy-anatomy-corp-gen-med-yj-substantia-perforata-quot-anterior-g-optic-tract-cut-bams-peditn-1-culi-cerebri-optic-tract-corpus-geniculatuni-late-rale-fascia-dentata-area-striata-optic-radiation-lunate-sulcus-fig-586diagram-of-the-central-connexions-of-the-optic-nerve-and-optic-tract-fig-587a-slightly-oblique-almost-hori-zontal-section-theodgh-a-cerebral-hemi-sphere-in-the-plane-of-the-optic-tract-and-radiation-wall-of-the-hemisphere-and-the-swelling-so-produced-in-the-posterior-cornu-of-the-lateral-ventricle-was-supposed-by-the-ol-PFYAYX.jpg)
Cunningham's Text-book of anatomy. Anatomy. CORP. GEN. MED.. yj Substantia perforata " anterior g Optic tract (cut) BaMs peditn- 1 culi cerebri — Optic tract | Corpus geniculatuni late rale ^^—
![File:Brain and spinal cord; a manual for the study of the morphology and fibre-tracts of the central nervous system (1912) (14577607309).jpg - Wikimedia Commons File:Brain and spinal cord; a manual for the study of the morphology and fibre-tracts of the central nervous system (1912) (14577607309).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Brain_and_spinal_cord%3B_a_manual_for_the_study_of_the_morphology_and_fibre-tracts_of_the_central_nervous_system_%281912%29_%2814577607309%29.jpg/531px-Brain_and_spinal_cord%3B_a_manual_for_the_study_of_the_morphology_and_fibre-tracts_of_the_central_nervous_system_%281912%29_%2814577607309%29.jpg)
File:Brain and spinal cord; a manual for the study of the morphology and fibre-tracts of the central nervous system (1912) (14577607309).jpg - Wikimedia Commons
![Die beschreibenden und topographische Anatomie des Menschen. 535. Frontalschnitt der Brücke in der Höhe des Tuberculum acusticum. Natürl. Grösse. / Ablösung des Tentorium von den Felsenbeinpyramiden und Niederländisch - Trennung der Die beschreibenden und topographische Anatomie des Menschen. 535. Frontalschnitt der Brücke in der Höhe des Tuberculum acusticum. Natürl. Grösse. / Ablösung des Tentorium von den Felsenbeinpyramiden und Niederländisch - Trennung der](https://c8.alamy.com/compde/mehcj9/die-beschreibenden-und-topographische-anatomie-des-menschen-535-frontalschnitt-der-brucke-in-der-hohe-des-tuberculum-acusticum-naturl-grosse-ablosung-des-tentorium-von-den-felsenbeinpyramiden-und-niederlandisch-trennung-der-ursprunge-der-gehirnnerven-des-verlangerten-markes-und-der-wirbelarterien-wird-das-ganze-gehirn-aus-der-schadelhohle-herausgenommen-umgesturzt-und-dadurch-sterben-gehirnbasis-zur-anschauung-referenzen-siehe-abb-563-hier-sind-sichtbar-a-die-vorderen-durchlocherte-lamelle-substantia-perforata-anterior-in-eine-mittlere-und-zwei-seitliche-durchlocherte-stellen-zerfallend-mehcj9.jpg)