Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download BB Lab 9
Document related concepts
no text concepts found
Transcript
Lab 9 Upper & Lower Motor Systems 1 SMA Motor planning FEF PMA Motor planning Of voluntary action Prefrontal Cortex •Processing sensory and memory info •Decision making What is the ~location of the: Prefrontal Cortex? PMA (premotor area)? SMA (supplementary motor area) FEF (frontal eye field) 1 2 1 2 3 1 Thalamus 2 3 4 1 Thalamus 2 3 Lentiform Nucleus 1 2 Putamen 3 (lentiform nucleus) ant. limb, Int. capsule (frontal eye field fibers) 1 head of caudate nucleus 2 frontal horn, lateral ventricle 3 optic chiasm 4 putamen ICA Post. limb, int. capsule: corticospinal + corticopontine 2 + thalamocortical fibers Body3of lateral ventricle thalamus 4 descending cortical 1 fibers in crus cerebri of midbrain 5 Ventricle III Lentiform nucleus 6 putamen is visible) (only What descending fibers from the primary motor cortex have degenerated in the indicated areas? Abbreviations: CS = corticospinal CB = corticobulbar 2 CB Position of: oculomotor 3nucleus + nerve roots 4 1 CS optic tract CB 6 CS 7 Oculomotor nerve roots 8 RED 5 NUCLEUS Red nucleus 10 Midbrain/Thalamic Junction Oculomotor nucleus 9 descending 1 fibers cortical 2 MLF Trochlear nucleus 3 Caudal Midbrain reticular formation with descending rubrospinal descending cortical fibers fibers trigeminal nerve motor nuc. & nerve roots of V 3 2 4 5 descending cortical fibers 7 6 Nerve Roots of V 1 motor nucleus of V 8 Mid Pons Reticular formation with reticular nuclei & descending rubrospinal fibers 5 descending cortical fibers 3 abducens nerve roots 4 8 descending 9 fibers nucleus cortical fibers facial nucleus exit of facial 7 nerve nerve roots facial nucleus 2 Facial nerve roots 1 abducens exit of VI nerve nucleus roots 10 nucleus abducens nucleus 6 Caudal Pons 11 nerve Hypoglossal 2nerve nerve roots Pyramidal 3 (corticospinal) tract reticular formation with reticular nuclei + & descending rubrospinal & reticulospinal fibers 4 8 pyramidal tract Vagal 1 Nerve nerve roots nuc. ambiguus 9 Hypoglossal nuc. 11 Vest. 10 Nuc. vestibular 5 nuclei nucleus hypoglossal 6 7 ambiguus nucleus Rostral Medulla Pyramidal decussation 1 crossing general position of 2 crossing pyramidal decussation Caudal Medulla Position of: ventral ventral horn corticospinal, vestibulospinal, with LMN & reticulospinal tracts lateral corticospinal lateral corticospinal tract medial & lateral & rubrospinal tracts ventral corticospinal, vestibulo+ rubrospinal tract motor nuclei in spinal, & reticulospinal tracts 5 2 4 1 6 3 ventral horn .. Cervical Spinal Cord Corticobulbar fibers – go to genu of internal capsule What is the ~location of the: Corticospinal Fibers? Corticobulbar Fibers? Rostral Midbrain Level Red Nucleus Corticobulbar fibers What is the ~location of the: Corticobulbar Fibers? Corticospinal Fibers? Red Nucleus? Oculomotor Nucleus & Nerve? Occulomotor Nucleus Nerve Rostral Midbrain Level Trochlear Nucleus – fibers from FEF via Premotor Area What is the ~location of the: Corticobulbar Fibers? Corticospinal Fibers? Trochlear Nucleus? Caudal Midbrain Level Trochlear nerve exit PAG Corticospinal and corticobulbar fibers mixed What is the ~location of the: Corticobulbar & Corticospinal Fibers? PAG? Trochlear Nerve? Rostral Pons Level Trigeminal Main Motor Nucleus Supplies muscles of mastication Reticular Formation Corticospinal and corticobulbar fibers mixed What is the ~location of the: Corticobulbar & Corticospinal Fibers? Trigeminal Motor Nucleus? Reticular Formation? Rostral Pons Level Abducens Nucleus Facial Nerve Fibers Reticular Formation Corticospinal and corticobulbar fibers mixed What is the ~location of the: Corticobulbar & Corticospinal Fibers? Facial Nerve Fibers? Abducens Nucleus? Reticular Formation? Rostral Medulla Level Hypoglossal Nerve Roots & Nucleus Vestibular Nuclei MLF Reticular Formation Pyramid What is the ~location of the: Pyramid? MLF? Vestibular Nuclei? Reticular Formation? Hypoglossal Nucleus & Nerve Roots? Rostral Medulla Level Lateral Corticospinal tract Rubrospinal Tract Lateral Motor nuclei What is the ~location of the: Lateral Corticospinal Tract? Medial Motor nuclei Lateral Vestibulospinal tract Rubrospinal Tract? Lateral Motor Nuclei Lateral Vestibulospinal Tract? Medial Motor Nuclei Lumbar Level Lateral Corticospinal tract Rubrospinal Tract Anterior Corticospinal tract Medial Motor nuclei What is the ~location of the: Lateral Corticospinal Tract? Rubrospinal Tract? Medial Motor Nuclei Anterior Corticospinal Tract? Thoracic Level Lateral Corticospinal tract Rubrospinal Tract What is the ~location of the: Lateral Corticospinal Tract? Rubrospinal Tract? C7 Level
Related documents