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:
Introduction: 0:00
Internal Surface of Spinal Cord: 01:03
Gray Matter of Spinal Cord: 02:08
White Matter of Spinal Cord: 06:47
Arrangement of White Matter: 7:22
Posterior Funiculus: 12:31
Lateral and Anterior Funiculus: 14:29
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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
