Lecture 4 Flashcards
somatotopic
organization of touch and pain info
tonotopic
organization of auditory info
retinotopic
organization of visual info
cranial nerves I, II, and VIII are strictly
sensory
cranial nerves III, IV, XI, XII are strictly
motor
the pneumonic for the cranial nerves in order:
oh oh oh to try and feel very good vegas slot handles
cranial nerve I is the
Olfactory Nerve
Cranial nerve II is the
Optic Nerve
Cranial nerve XIII is the
Vestibulocochlear Nerve
Cranial nerve I can be _________ which is an accepting to usual rules
regenerated
Cranial nerve I is only
1-2 cm long
Cranial nerve I ____ pass through the brain stem
does NOT
Cranial nerve II originates in the
back of the eyeball
cranial nerve II is technically
part of the CNS
Cranial nerve XIII gives us
a sense of balance and hearing
Cranial nerve XIII is
two separate bundles pretending to be one
Cranial nerve XIII partners with
several optic nerves to create the vestibulo-ocular reflex
Cranial nerve V is the
trigeminal nerve
cranial nerve V provides sensation to the
face, scalp, cornea, nasal cavity, oral cavity, teeth, and texture sensation from anterior 2/3 of the tongue
the motor aspect of cranial nerve V is for
chewing and some misc small muscles
Cranial nerve VII is the
facial nerve
cranial nerve VII gives
taste from the anterior 2/3 of the tongue
cranial nerve VII allows for the
production of tears and works with CNIX to give us drool
Cranial nerve IX is the
glossopharyngeal nerve
cranial nerve IX gives
both taste and touch for the back 1/3 of the tongue and touch for part of throat and ear
Cranial nerve X is the
Vagus nerve
cranial nerve X carries sensation from the
heart, lungs, and digestive system
cranial nerve X carries taste from
back of the mouth and the top of the esophagus
cranial nerve III, IV, and VI are the
oculomotor, trochlear, and abducens nerves
cranial nerves III, IV, and VI all work together to
move the eyes
cranial nerve XI is the
spinal accessory nerve
cranial nerve XI is effectively the only cranial nerve to
come out of the spinal cord
cranial nerve XI moves the
head and shoulders
Cranial nerve XII is the
hypoglossal nerve
cranial nerve XII controls the
shape and position of the tongue, which is important for speaking.
because spine acts as a highway,
different regions have different levels of white matter, grey matter, and general width
there is more grey matter in the spinal cord ________ and more white matter _________
At the bottom; At the top
the inside of the cord is
grey matter
the outside of the spinal cord is
white matter
Bell-Magendie law
sensory info enters the cord posteriorly (dorsally), motor info exits the cord anteriorly (ventrally)
Midbrain contains the
superior colliculus and the inferior colliculus
flat maps are good for
tracking the movement of inputs without having to deal with 3d space
contralateral
to cross to the opposite side of
as a general rule, the order of receiving and interpreting a stimulus is
receptor –> hindbrain –> midbrain (sometimes skipped) –> thalamus –> cortex
the purpose of cerebral spinal fluid is to
cushion the brain and spinal cord from trauma, reduce the brain’s effective weight, and allow for the movement of nutrients and wastes
