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15 Cards in this Set
- Front
- Back
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Reticular formation
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-parasymph. n/motor n.> occulomotor III
-motor n.> trochlear IV -nucleus mesencephalon> trigeminal V (sensation of movement and location from muscles) Pons: -motor> trigeminal,abducent,facial Principal sensory touch,pressure face> trigeminal Pain, temp face> spinal nucleus spinal nucleus> trigeminal |
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Amygdaloid complex
-input/output |
-corticospinal> m.centers in spinal cord
-corticobulbar> m.nuclei in cerebellum -corticopontine>p.nuclei in pons/cerebellum -corticoreticular> nuclei in reticular formation |
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midbrain nuclei
pons nuclei |
-responsible for basic autonomic and vital functions
cardiovascular reg respiratory reg gastrointernal motility -ascending v.system sensory info from spinal cord -descending extrapyramidal motor system Red nucleus (muscle tension) gives rise to intraspinal/intrabulbar tract receives info from c.cortex + cerebellum |
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Descending motor pathways from c.cortex
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input (afferent)
-olfactory bulb -hypothalamus -sensory assosciation cortex -cingulate gyrus -prefontal cortex Out -septal nuclei -thalamus -hypothalamus -hippocampal form. of b.stem cingulate gyrus -limbic cortex -prefrontal c. -autonomic centers |
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Epithalamus
Pineal Gland |
Generic disease leading to neural degeneration of striatum (caudate nucleus)
and cerebral cortex -dementia -.... (excessive grimacing/gesticulation) |
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Projection fibers from hemisphere
Corona radiata |
Mediates smell via olfactory nerve
projects to thalamus, hypothalamus, ambygdala and hypocampal formation olfactory receptor cells in nasal mucosa> >olfactory neve (bulb) input >olfactory tract >lateral olfact. stria >primary olfactory cortex |
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Olfactory system
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above level of basal ganglia
internal capsule below thalamus, caudate and lentiform nucleus All eff. and aff. pathways run through the internal capsule ant.lim>genu>post.limb |
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Huntingtons
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-pineal gland
-fotoneuroendocrine organ, transmiting the influence of light on the hypothalamus+hypophysis and other organs -produces melatoning causes sleep -inhibets sexul maturness and inhibets the release of gonadothropic hormones from hypophysis |
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cerebellum generell
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-fastigial nucleus
-interposed nuclei (emboliform/globose) -dentate nuclei |
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external extreme capsule
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preganglionic neurons in brainstrem, sacral part of SC, pelvic splanchnic nerves
postganglionic neurons in parasymph. ganglia of head and internal ganglia. |
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Center of CNS
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-contains association pathways
-landmarks used in imaging |
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Cerebellar nuclei
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- in post cranial fossa
-separated from occipital lobes by tentorioum cerebelli -lies above foramen magnum of skulle Gen.division vermis-midline structure connecting the hemispheres cerebellar tonsil-lowest part of cerebellum !!May hermate through foramen magnum > pressure on medulla oblangata > results in death |
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Exit glossopharyngeal ix
vagus x cranial roots accessory nerve xi |
between pyramide and olive in preolivary sulcus
in skull > hypoglossal canal |
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Exit trochlear nerve iv
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-lies between cerebral crus and tegmentum
-largest nucleus of the midbrain -part of striatal (extrapyramidal) motor system -produces dopamin -vital role in reward and addiction -is functionally connected to the striatum |
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Exit hypoglossal xii
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between olive and inf.cerebellar peduncle in postolivary sulcus
in skull > glosso/vagus/accessory-jugular foramen |
