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Internal Spinal Cord (Gray Matter, White Matter, Funiculus) - Anatomy

PS! There's a little mistake in the table at the end (white matter). Numbers 1 and 2 are switched. Apologize for the minor mistake! Content: 0:00 Introduction 1:03 Internal Surface of Spinal Cord 2:08 Gray Matter of Spinal Cord 6:47 White Matter of Spinal Cord 7:22 Arrangement of White Matter 12:31 Posterior Funiculus 14:29 Lateral and Anterior Funiculus ------------------------------- 🫀 Join:    / @taimtalksmed   📷 Follow my IG:   / taimtalksmed   💝 Donation link: https://www.buymeacoffee.com/taimtalk... ------------------------------- Internal Surface of Spinal Cord - Grey Matter ○ Nerve Cell Bodies and Dendrites - White Matter ○ Myelinated axons and glial cells Grey Matter of Spinal Cord - Anterior Horn (Conu Posterius) ○ Motor Nuclei - Posterior Horn (Conu Posterius) ○ Marginal Nucleus (Nucleus Marginalis) ○ Gelatinous Substance of Rolando (Substantia Gelatinosa Rolandi) ○ Nucleus Proprius ○ Posterior Thoracic Nucleus (Nucleus Thoracicus Posterior) - Lateral Horn (Conu Lateralis) ○ Sympathetic and Parasympathetic fibers - Intermediate Column (Columna INtermedia) ○ Intermediomedial Nucleus (Nucleus Intermediomedialis) ○ Intermediolateral Nucleus (Nucleus Intermediolateralis) ○ Sacral Parasympathetic Nuclei (Nucleus Parasympathetici Sacrales) - Central Zone (Zona Centralis) - Central Canal (Canalis Centralis) - Central Gelatinous Substance of Spinal Cord (Substantia Gelatinosa Centralis) - Fasciculi Proprii - Spinal Reticular Formation (Formatio Reticulatis Spinalis) White Matter of Spinal Cord: - Posterior Funiculus - Lateral Funiculus - Anterior Funiculus White Matter Arrangement: - Ascending Tracts / Afferent Tracts (Tractus Ascendentes s.afferentes) ○ Unconscious og to Cerebellum § Unconscious Proprioceptive Sensation (Posture, Joint Stability, Feedforward Control) § Anterior SpinoCerbellar Tract (Tractus Spinocerebellaris Anterior) § Posterior SpinoCerebellar Tract (Tractus Spinocerebellaris Posterior) ○ Conscious go to Cortex § Conscious Proprioceptive sensation (Kinesia, Joint Position, Sense of Force) § Touch, Pain, Pressure Temperature § Anterior Spinothalamic Tract (Tractus Spinothalamicus Anterior) § Lateral Spinothalamic Tract (Tractus Spinothalamicus Lateralis) § Cuneate Fascicle (Fasciculus Cuneatus) § Gracile Fascicle (Fasciculus Gracilis) - Descending Tracts / Efferent Tracts (Tractus Descendens s.efferentes) ○ Involuntary Movements (Extrapyramidal Tracts) § Balance, Body Posture, coarse movements § Rubrospinal Tract (Tractus Rubrospinalis) § Tectospinal Tract (Tractus Tectospinalis) § Vestibulospinal Tract (Tractus Vestibulospinalis) § Olivospinal Tract (Tractus Olivospinalis) § Medial Reticulospinal Tract (Tractus Reticulospinalis Medialis) § Lateral Reticulospinal Tract (Tractus Reticulospinalis Lateralis) ○ Voluntary Movements (Pyramidal Tracts) § From Pyramidal Cells of Primary Motor Cortex § Anterior Corticospinal Tract (Tractus Corticospinalis Anterior) § Lateral Corticospinal Tract (Tractus Corticospinalis Lateralis) Posterior Funiculus: - Cuneate Fascicle (Fasciculus Cuneatus) - Gracile Fascicle (Fasciculus Gracilis) ○ Epicritic Sensibility (Propception and Mechanoreceptors) Lateral Funiculus: - Anterior SpinoCerbellar Tract (Tractus Spinocerebellaris Anterior) - Posterior SpinoCerebellar Tract (Tractus Spinocerebellaris Posterior) - Lateral Spinothalamic Tract (Tractus Spinothalamicus Lateralis) - Lateral Corticospinal Tract (Tractus Corticospinalis Lateralis) - Rubrospinal Tract (Tractus Rubrospinalis) - Lateral Reticulospinal Tract (Tractus Reticulospinalis Lateralis) Anterior Funiculus - Anterior Spinothalamic Tract (Tractus Spinothalamicus Anterior) - Anterior Corticospinal Tract (Tractus Corticospinalis Anterior) - Tectospinal Tract (Tractus Tectospinalis) ○ Reflexes associated with eyes and neck - Vestibulospinal Tract (Tractus Vestibulospinalis) ○ Balance and Posture - Olivospinal Tract (Tractus Olivospinalis) ○ Balance and Posture - Medial Reticulospinal Tract (Tractus Reticulospinalis Medialis) - Medial Longitudinal Fasciculus (Fasciculus Longitudinalis Medialis) QUIZ Sources used in this video: - Memorix Anatomy 2nd Edition by Hudák Radovan (Author), Kachlík David (Author), Volný Ondřej (Author) - Biorender - University notes and lectures