Neuro Midterm Lecture 1
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28 terms
English | Photos |
|---|---|
 Cerebrum= | • Diencephalon + Telencephalon |
| 4 Major Parts of the Diencephalon: | • Epithalamus • Thalamus • Hypothalamus • Subthalamus |
| Pineal Body: | • Attached to roof of 3rd ventricle • Secretes substances into CSF • Circadian Rhythms |
| Habenular Nuclei: | • Input from Stria Medullaris • Projects to Raphe nucleus in brainstem |
| Stria Medullaris: | • Septal Nuclei to habenula |
| Hypothalamus: | • Integrates ANS with Endocrine glands • Includes mammillary bodies |
| Subthalamus: | • Internal capsule • Subthalamic nucleus • Reticular nucleus • MGN • LGN |
| Epithalamus Function: | • Linked with Limbic System • Autonomic/behavioral responses to emotional changes |
| Thalamus Function: | • Sensory/motor relay to cortex |
| Hypothalamus Function: | • Major role in emotion • Basic functions (hunger, thirst, homeostasis) |
| Subthalamus Function: | • Motor Function |
| Corpus Striatum= | • Caudate + Putamen +Globus Pallidus |
| Lentiform Nucleus= | • Putamen + Globus Pallidus |
| Basal Ganglia: | • Corpus Striatum • Subthalamic Nucleus • Substantia Nigra • Amygdala • VOLUNTARY MOVEMENTS |
| Hypokinetic Disorders: | • Dysfunction of the basal ganglia • Akinesia • Bradykinesia |
| Hyperkinetic Disorders: | • Dyskinesia |
| Thalamocortical Fibers (corticopetal): | • Ascending Fibers from thalamus |
| Corticofugal Fibers: | • Descending fibers from cortex (corticospinals & Corticonuclears) |
| 3 Major Parts of the IC (Internal Capsule): | • Anterior Limb • Genu • Posterior Limb |
| 2 Parts of the Anterior Limb: | • Descending Corticofugal Fibers • Anterior Thalamic Radiation (ascending/descending fibers connecting Anterior & medial thalamus with prefrontal cortex) |
| Genu: | • Contains Corticonuclear fibers |
| 3 Parts of the Posterior Limb: | • Corticopontine/Corticospinal fibers • Retrolenticular Fibers • Sublenticular Fibers |
| Retrolenticular Fibers: |  • Form the Optic Radiation which connects the LGN with the visual cortex |
| Sublenticular fibers: | • Form the Auditory Radiation which connects the MGN with the auditory cortex |
| Lateral Striae Branches of MCA Supplies: | • Anterior limb of IC • Posterior limb of IC |
| Internal Carotid Artery Supplies: | • Genu |
| Anterior Choroidal Artery Supplies: | • Retrolenticular Part of Posterior Limb |
| IC Infarction: | • Contralateral Effects • Sensory & Motor deficits • Damage to Posterior Limb: • UMN signs, (hemiplegia/hemiparesis) • Visual Field Deficits • Auditory Deficits |
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