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65 Cards in this Set
- Front
- Back
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nucleus gracilis - just above spinomedullary junction |
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nucleus cuneatus - just above spinomedullary junction |
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spinal V nucleus - just above spinomedullary junction |
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supraspinal nucleus - just above spinomedullary junction |
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spinal V tract - just above spinomedullary junction |
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fasciculus cuneatus - just above spinomedullary junction |
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fasciculus gracilis - just above spinomedullary junction |
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pyramid - just above spinomedullary junction |
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lateral corticospinal tract - just above spinomedullary junction |
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motor (pyramidal) decussation - just above spinomedullary junction |
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1 |
posterior spinocerebellar tract - just above spinomedullary junction |
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spinothalamic tract - contralateral loss of pain and temp - just above spinomedullary junction |
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anterior spinocerebellar tract - just above spinomedullary junction |
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descending autonomic fibers - Horner's syndrome - just above spinomedullary junction |
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medial lemniscus - nucleus gracilis and cuneatus = 2nd order neurons of the posterior column system - just above spinomedullary junction |
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spinal V nucleus - pain, temp, light touch - projects to the VPM in contralateral thalamus - analogus to anterolateral spinothalamic systems - just above spinomedullary junction |
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E - spinothalamic tract - damage = loss of pain/temp on contralateral side |
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spinal V nucleus - medulla just below obex |
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nucleus gracilis - medulla just below obex |
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nucleus cuneatus - medulla just below obex |
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internal arcuate fibers - medulla just below obex |
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sensory decussation - medulla just below obex |
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medial lemniscus - carries sensory from foot - dorsal = proximal area - ventral = distal area - medulla just below obex |
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pyramid - contains ~10% of anterior corticospinal tract (ACST) of descending UMN axons from ipsilateral cortex |
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spinal V tract - analogous to spinothalamic tract - cell bodies in trigeminal ganglion - connects to dorsal horns; pain, temp, touch - medulla just below obex |
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fasciculus cuneatus - gracilis is almost gone at this level - medulla just below obex |
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4th ventricle |
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inferior olivary nucleus |
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pyramid - babinski sign, contralateral side |
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medial lemniscus |
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medial longitudinal fasciculus |
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spinal V nucleus |
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hypoglossal nucleus - LMN to the tongue |
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dorsal motor nucleus of CN X (DMX) - preganglionic parasympathetic neurons - synapse on postganglionic neurons in the peripheral parasympathetic neurons (IML) |
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spinal V tract |
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CN XII (hypoglossal) |
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c. damage to left pyramid = right UMN weakness - damage to hypoglossal nerve from hypoglossal nucleus = ipsilateral tongue weakness |
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hypoglossal nucleus - upper medulla |
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dorsal motor nucleus of CN X (DMX) - - upper medulla |
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spinal V nucleus - pain and temp in ipsilateral face - upper medulla |
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spinal V tract - upper medulla |
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nucleus ambiguous - LMNs for axons with CN X & IX - innervates neck - damage = dysphonia and dysphagia - from arch 3, 4, 6 - upper medulla |
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solitary nucleus (light) & solitary tract (dark) - taste fibers from posterior 1/3 of tongue (CN IX) - anterior 2/3 tongue = CN VII - epiglottic area = CN X - sends signals to postrema for vomiting - upper medulla |
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inferior vestibular nucleus - upper medulla |
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medial vestibular nucleus - upper medulla |
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inferior cerebellar peduncle - upper medulla |
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medial lemniscus - loss of vibration and conscious position sense - upper medulla |
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medial longitudinal fasciculus - upper medulla |
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pyramid - upper medulla |
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inferior olivary nucleus - upper medulla |
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medial vestibular nucleus - upper medulla |
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inferior vestibular nucleus - upper medulla |
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inferior cerebellar peduncle - upper medulla |
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cochlear nuclei - upper medulla |
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solitary nucleus (light) with solitary tract (dark) - upper medulla |
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nucleus ambiguous - upper medulla |
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spinothalamic tract (red) descending autonomic fibers (blue) - upper medulla |
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spinal V nucleus - upper medulla |
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cochlear nuclei - upper medulla |
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medial vestibular nucleus - upper medulla |
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inferior cerebellar peduncle - upper medulla |
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spinal V tract - upper medulla |
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medial longitudinal fasciculus (MLF) - upper medulla |
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descending autonomic fibers - upper medulla |
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spinothalamic tract - upper medulla |
