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Neuro 1
Neuro Test one
33
Medical
Professional
04/06/2010

Additional Medical Flashcards

 


 

Cards

Term
Colliculus
Definition
A small, round protuberance or swelling
Term
Commissure
Definition
a bundle of nerve fibers passing from one side of the CNS to the other
Term
Fasciculus
Definition
A band of bundle of axonal fibers
Term
Funiculus
Definition
a longitudinal bundle containing white matter (axons)
Term
Ganglion
Definition
cluster of neurons in the PNS
Term
Neuropil
Definition
tangle of dendrites, axon terminals, and glial processes where most synapses are found
Term
Nucleus
Definition
cluster of neurons in the CNS
Term
Puduncle
Definition
white matter stalk or stem-like structure, serving as a connection
Term
Stria
Definition
stripe, band, or line distinguished by color, texture, jdepression or elevation from the surrounding tissue
Term
Tract
Definition
Bunble of axons in the CNS
Term
Tubercle
Definition
an elongated surface protuberance overlying a similar-shaped nuclues
Term
interventricular Foramen of Monro
Definition
communication point between both lateral ventricles nad the third ventricle
Term
Cerebral Aqueduct ("aqueduct of Sylvius")
Definition
small channel through the midbrain that connects the third and fourth ventricles
Term
Protein Kinase A activated by
Definition
cAMP
Term
Protein kinase C activated by
Definition
Ca and DAG
Term
MAPK activated by
Definition
other protein kinases- kinase cascade
Term
MAPKs when activated does what?
Definition
phosphorylates transcription factors
Term
ERK (extracellular signal regulated kinase) is a:
Definition
MAPK in brain
Term
Dopamin cell bodies located
Definition

substantia nigra

Ventral tegmental area

(also hypothalamus and retina)

 

Term
Substantia nigra dopamine cell bodies project to:
Definition
putamen and caudate nucleus
Term
Ventral tegmental area DA neurons project to:
Definition
cortical and limbic regions
Term
Tuberoinfundibular DA system
Definition

originates in arcuate nucleus

projects to infundibular stalk- inhibits prolactin secretion by the anterior pituitary

Term
Norepinephrine pathways
Definition

Locus ceruleus (ascending projections)

Lateral tegmental system (Descending projections)

Term
NE neurons of locus ceruleus project to:
Definition

all parts of cerebral cortex

basal forebrain

hippocampus

amygdala

thalamus

cerebellum

Term
Functional role of Locus ceruleus NE pathway
Definition

level of arousal

attention and vigilance

responding to stress and depression

Term
NE neurons of ventral lateral tegmentum project to
Definition
brainstem and spinal cord (autonomic function)
Term
Histamine found in:
Definition
hypothalamus
Term
Cholinergic neurons of CNS located in:
Definition

the basal forebrain constellation

Dorsolateral tegmentum of pons

Term
Cholinergic neurons of basal forebrain innervate
Definition

entire neocortex

amygdala

hippocampus

thalamus

Term
Cholinergic neurons in dorsolateral tegmentum of pons project to:
Definition
basal ganglia, thalamus, hypothalamus, medullary reticular formation and deep cerebellar nuclei
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