Master Typical Spinal Nerve | Upper Limb Lower Limb скачать в хорошем качестве

Master Typical Spinal Nerve | Upper Limb Lower Limb

Master Typical Spinal Nerve | Upper Limb Lower Limb Worlds best medical lectures on basic and clinical medicine Like this video? Sign up now on our website at https://www.DrNajeebLectures.com to access 1000+ Exclusive videos on Basic Medical Sciences & Clinical Medicine. These are premium videos (NOT FROM YOUTUBE). All these videos come with English subtitles & download options. Sign up now! Get Lifetime Access for a one-time payment of $19 ONLY! Sign up now on our website at https://members.drnajeeblectures.com/ --------------------------------------------------------------------------------------------------------------------------- Why sign up for premium membership? Here's why! Membership Features for premium website members. 1. More than 1000+ Medical Lectures. 2. Basic Medical Sciences & Clinical Medicine. 3. Mobile-friendly interface with android and iOS apps. 4. English subtitles and new videos every week. 5. Download option for offline video playback. 6. Fanatic customer support and that's 24/7. 7. Fast video playback option to learn faster. 8. Trusted by over 2M+ students in 190 countries. --------------------------------------------------------------------------------------------------------------------------- ▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ Spinal Cord Structural Overview (00:02:19 - 00:05:34) Spinal Cord Regions: Cervical (C1-C8) Thoracic (T1-T12) Lumbar (L1-L5) Sacral Coccygeal (single segment) Segment Characteristics Functional Definition: One segment provides motor neurons to muscles from a specific myotome Connects sensory input from a specific dermatome Gray Matter Anatomy (00:06:25 - 00:09:15) Gray Matter Horns Posterior Horn: Primarily sensory functions Present throughout spinal cord Anterior Horn: Primarily motor functions Extends throughout spinal cord Lateral Horn: Autonomic functions Location Specifics: Present only in thoracolumbar region (T1-L2) Reappears in sacral segments (S2-S4) Autonomic Nervous System Outflow Sympathetic Outflow: Originates from thoracolumbar region Parasympathetic Outflow: Craniosacral origin Cranial nerves: 3rd, 7th, 9th, 10th Sacral segments: S1-S4 Typical Spinal Nerve Structure (00:10:34 - 00:13:01) Nerve Formation Root Composition: Anterior (Ventral) Root: Motor functions Posterior (Dorsal) Root: Sensory functions Nerve Branches Typical Spinal Nerve: Short segment (1-2 cm) Formed by fusion of anterior and posterior roots Divides into: Posterior Ramus Anterior Ramus Special Anatomical Exception C1 Segment: Unique configuration Contains only motor (anterior) root Neurological Connectivity Roots emerge laterally through intervertebral foramina Fusion creates typical spinal nerve Nerve branches supply different body regions Advanced Conceptual Understanding Segmental Specificity: Each spinal segment has precise motor and sensory territories Neurological Precision: Nerve roots maintain specific functional characteristics Autonomic Integration: Lateral horns facilitate sympathetic and parasympathetic functions Clinical Implications Understanding segmental anatomy crucial for: Neurological diagnosis Localization of neurological lesions Understanding nerve root pathologies Spinal Nerve Anatomy and Composition Spinal Segments Overview (00:14:38 to 00:15:02) Total of 31 spinal segments Breakdown of segments: 8 Cervical 12 Thoracic 5 Lumbar 5 Sacral 1 Coccygeal Unique Characteristic: 31 pairs of spinal nerves emerge, one pair per segment Root Composition (00:16:21 to 00:17:51) Anterior (Ventral) Root Alternative Names: Interior root Motor root Ventral root Fiber Types (00:18:29 to 00:19:29) Somatic Motor Fibers (Red) Target skeletal muscles Autonomic Motor Fibers (Green) Target glands Sympathetic or parasympathetic depending on spinal segment Neuronal Components (00:19:29 to 00:21:09) Unique Cervical Segment Characteristic (00:15:16 to 00:16:04) Nerve Distribution Patterns (00:26:31 to 00:28:05) Nerve Pathway Routing (00:23:41 to 00:24:32) Spinal Nerve Composition (00:28:26 - 00:30:30) Nerve Branching Mechanism (00:30:42 - 00:31:49) Motor Neuron Classification (00:32:43 - 00:34:17) --------------------------------------------------------------------------------------------------------------------------- Join this channel to get access to the perks: Sign up now on our website at https://members.drnajeeblectures.com/ Follow us on Facebook:-   / drnajeeb   Follow us on Instagram:-   / drnajeeblectures