Intro to Neuroscience Flashcards
ABOVE THE MIDBRAIN, what anatomical direction means “anterior”
rostral
BELOW THE MIDBRAIN, what anatomical direction means “anterior”
ventral
ABOVE THE MIDBRAIN, what anatomical direction means “posterior”
caudal
BELOW THE MIDBRAIN, what anatomical direction means “posterior”
dorsal
ABOVE THE MIDBRAIN, what anatomical direction means “superior”
dorsal
BELOW THE MIDBRAIN, what anatomical direction means “superior”
rostral
ABOVE THE MIDBRAIN, what anatomical direction means “inferior”
ventral
BELOW THE MIDBRAIN, what anatomical direction means “inferior”
caudal
what is the difference between a midsagittal plane and a parasagittal plane
midsagittal produces EQUAL halves
parasagittal produces UNEQUAL halves
what is white matter and what are the examples we were given
a bundle of myelinated axons in the CNS
ex) tract, lemniscus, fasciculus, column, peduncle, bundle, capsule
what is grey matter and what are the examples we were given
areas containing groups of cell bodies
ex) in PNS - ganglia
in CNS - nuclei, basal ganglia, thalamus, cortex
what comprises the central part of the spinal cord and the horns
GREY matter
what is found in the ventral horn of the spinal cord
cell bodies for lower motor neurons
what is found in the lateral horn of the spinal cord
presynaptic sympathetic neurons
ONLY between T1-L2
what is found in the dorsal horn of the spinal cord
sensory neurons
what is the central sulcus
groove between parietal and frontal lobes
what is the the lateral sulcus
groove between parietal, frontal, and temporal lobes
what is the significance of the precentral gyrus
it’s the primary motor cortex
what is the significance of the postcentral gyrus
it’s the primary somatosensory cortex
what are the major features of the ventral side of the midbrain
cerebral peduncles
CN III
what are the major features of the dorsal side of the midbrain
superior and inferior colliculus
CN IV
what is the major feature of the pons
CN V
what are the major features of the medulla and where are they found
all are on the ventral surface:
pyramids and olives
CN IX, X, XII
what does the diencephalon consist of
hypothalamus
epithalamus
thalamus
eyes
what CNs exit the midbrain
CN III and IV
what CNs exit the brainstem at the pontomedullary junction
VI, VII, VIII
where does CN XI exit the brainstem
the spinal cord
what CNs exit the medulla
IX, X, XII
