Forebrain Organization PDF

Forebrain Organization Part III Internal Structure & Intro to Basal Ganglia Patrick O’Connor, Ph.D. Department of Biomedical Sciences—OUCOM [email protected] Phone: 740-593-2110 119 Life Sciences Building Pre-record for PHWC-Acute Illness Course Week 10 Related Objective(s): Identify the major subco...

Forebrain Organization Part III Internal Structure & Intro to Basal Ganglia Patrick O’Connor, Ph.D. Department of Biomedical Sciences—OUCOM [email protected] Phone: 740-593-2110 119 Life Sciences Building Pre-record for PHWC-Acute Illness Course Week 10 Related Objective(s): Identify the major subcortical nuclei of the forebrain, including those making up the basal ganglia (5247). Complete a dissection of the ventricular system of in the forebrain and brainstem, and summarize the flow of CSF through the system (5255). Associated Readings: Purves et al., Neuroscience, 6th ed., Ch. 18, pp. 407-417 (section on Introduction to Basal Ganglia/Overview of BG circuits); pp. A16-A20 [sections on Internal Anatomy of the Forebrain])—5247. Haines, Neuroanatomy in Clinical Context 9th ed. – Chapter 4, Pp. 58-72 [section entitled: Meninges, Cisterns, Ventricles, and Related Hemorrhages]—5255. 2 corpus callosum cingulate gryus midbrain pons medulla 33 4 Haines, 2015 5 Haines, 2015 6 Haines, 2015 7 Haines, 2004 8 Forebrain: A roadmap For internal anatomy 9 lateral ventricle caudate nucleus putamen internal capsule Haines, 2015 10 Basal ganglia –collection of subcortical nuclei involved with coordination/integration of different portions (e.g., motor areas) of the CNS lenticular nucleus= putamen + globus pallidus striatum = caudate nucleus + putamen 11 caudate nucleus thalamus internal capsule hippocampus putamen globus pallidus From Haines, 2015 12 From Haines, 2015 13 Axial (horizontal) Sections 14 lateral ventricle lateral ventricle Haines, 2015 15 caudate nucleus Haines, 2015 16 putamen internal capsule globus pallidus thalamus Haines, 2015 17 BASAL GANGLIA-An Overview HISTORICALLY— “any subcortical telencephalic nucleus” Including putamen, GP, caudate, claustrum, amygdala TODAY— functional basal ganglia—linked with one another Including putamen, caudate, GP, subthalamic nucleus, substantia nigra 18 caudate putamen nucleus accumbens Haines, 2012 19 putamen globus pallidus Haines, 2012 20 P GP subthalamic nucleus Haines, 2012 21 substantia nigra Haines, 2012 22 GENERAL CIRCUITRY cerebral cortex thalamus Basal ganglia complex Motor Circuits (general and eye-specific) Limbic Circuits (emotions, memory) Cognitive Circuits 23 MOTOR CIRCUIT Somatomotor cerebral cortex thalamus VL/VA Basal ganglia complex TBC in the Chronic Illness Course 24 Related Objective(s): Identify the major subcortical nuclei of the forebrain, including those making up the basal ganglia (5247). Complete a dissection of the ventricular system of in the forebrain and brainstem, and summarize the flow of CSF through the system (5255). Associated Readings: Purves et al., Neuroscience, 6th ed., Ch. 18, pp. 407-417 (section on Introduction to Basal Ganglia/Overview of BG circuits); pp. A16-A20 [sections on Internal Anatomy of the Forebrain])—5247. Haines, Neuroanatomy in Clinical Context 9th ed. – Chapter 4, Pp. 58-72 [section entitled: Meninges, Cisterns, Ventricles, and Related Hemorrhages]—5255. 25