Neurology

Front 1

mild or tansient motor/sensory deficint, fluent aphasia, neglect- field cut, stroke diagnosis?

Back 1

MCA - inferior division

Front 2

acalcuilia, L-R dissociation, finger anosia, agraphia, stroke diagnosis?

Back 2

Gerstmann's Syndrome - dominant inferior parietal lobe - from MCA stroke

Front 3

what composes a sensory neuron?

Back 3

unipolar or pseudounipolar neurons
located in the dorsal root and cranial ganglia and in the mesencephalic nucleus of the trigeminal nerve of the brainstem

Front 4

what are the two types of axonal length found in neurons?

Back 4

golgi type I neurons: long axons - giant pyramidal cells of Betz of the motor cortex
- golgi type II neurons - short axons (interneurons)

Front 5

nissl substance is?

Back 5

nerve cells - rough endoplasmic reticulum - plays a role in protein synthesis
- found in dendrites and cytoplasms, NOT in axon

Front 6

lewy bodies are made up of?

Back 6

eosinophlic intracytoplasmic inclusion bodies found in the substantia nigra in patients with parkinson disease

Front 7

wht are Hirano bodies?

Back 7

intracytoplasmic inclusion bodies found in the hippocampus in patiens with Alzheimer disease

Front 8

what are negri and lyssa bodies?

Back 8

intracytplasmic inclusion bodies found in people with rabies

Front 9

what types of sensory axons are there?

Back 9

1. Ia and Ib - fastest conduction, thickest, proprioception, muscle spindles, and golgi tendon organs

2. II - smaller than Iab, conducts slower, touch, pressure, and vibration

3. III - smaller than II, conducts slower, touch, pressure, FAST pain, and temperature

4. IV - smallest sensory, really slow conduction, SLOW pain, temperatre, and these are UNmyelinated fibers

Front 10

What types of motor axons are there?

Back 10

1. Alpha - thickest, fastest, ventral horn motor neurons, innervate extrafusal muscle fibers

2. Gamma - thinner than alpha, slower, neurons of the ventral horn - innervate intrafusal muscle fibers

3. Preganglionic autonomic fibers - smaller, sloer, myelinated preganglionic autonimic fibers

4. postganglionic autonomic fibers, unmyelinated postganglionic

Front 11

what two cells produce mylein?

Back 11

CNS - oligodendrocytes

PNS - schwann cells

Front 12

a supratentorial lesion, found in the interventricular foramin, may cause "drop attacks" and sudden death, what is it?

Back 12

colloid cysts of third ventricle - found at interventricular foramina, ependymal in origin, causes obstruction that results in increased intracrnial pressure

Front 13

a supratentorial tumor that on hisotry is found to have: psammoma bodies and concentric whorls, is?

Back 13

meningiomas

Hint 13

second most common primary intracranial brain tumor after astrocytomas, may produce hyperostosis, could be part of neurofibromatosis -2

Front 14

what type of tumor and what syndrome is associated with a mass located at the pineal region?

Back 14

germ cell tumors - germinomas
- parinaud's syndrome

Hint 14

can cause obstrutive hydrocephalus due to aqueductal stenosis

Front 15

what is the most common supratentorial primary malignancy in adult patients?

Back 15

astroytomas - 20%
- specifically glioblastoma multiforme - (55%)

Hint 15

commonly found in frontal and temporal lobes and basal ganglia,
- frequenctly crosses midline via corpus collosum (butterfly glioma)