chapter 13 pt 5 Flashcards
in the midbrain other structures include
tagmentum, cerebral aqueduct, tectum
tegmentum contain
red nuclei and reticular formation
reticular formation has to do with
aurosal or consciousness
affects to reticular formation means someone is in a
coma
cerebral aquaduct is surrounded by
periaqueductal gray matter
tectum contains four mounds making a
tectal plate
in the tectum the is a pair of _____ that control visual reflexes and tracking
superior colliculi
pair of _____ control auditory reflexes
inferior colliculi
in pons it has a
pontine respitory center
pontine respitory center is located in pons and helps regulate
skeletal muscles of breathing
medulla oblongata if severed will cause
death
medulla oblongata has ____ we call pyramids
tracts
medulla oblongata is the _____ portion of the brainstem
inferior
medulla oblongata has _____ connecting brain to spinal cord
tracts
medulla oblongata has pyramids which are a
pair of ridges on anterior surface
pyramids in medulla oblongata house
corrticospinal tracts for otor control
in medulla oblongata most tract axons cross at the ____________ so each side of cortex controls movement on opposite side of body
decussion of the pyramids
in medulla oblongata there are also things called olives that bulge ______ to each pyramid
lateral
olives relay ________ to cerebellum
proprioceptive information
in medulla oblongata olives contain
inferior olivary nucleus
the inferior cerebellar peduncles is located in
medulla oblongata
inferior cerebellar peduncles have tracts connecting
medulla to cerebellum
medulla oblongata has 2 iportant centers called
cardiovascular center, medullary respitory center
the cardiovascular center is composed of
cardiac center, vasomotor center
cardiac center does what
regulkates hearts output
vasomotor center does what
regulates blood vessels diameter; influences blood pressure
the medullary respitory center controls
breathing rate
the medullary respitory center contains
dorsal and central respitory groups.
the medullary respitory center communicates with
pontine respitory center
the cerebellum is the ________ brain area
2nd largest
e cerbellum is located
beneath occipital lobe
cerebellar cortex- convoluted surfae with
folia (folds)
how many cerebral hemispheres are there
2
each hemisphere of cerebellum has an
anterior and posterior lobe seperate by primary fissure
vermis is a
narrow band of cortex between left and right lobes
the vermis receives
sensory signals regarding torso and balance
the three regions of the cerebellum are
cerebellar cortex, arbor vitae, deep cerebellar nuclei
cerebellar cortex is the
outer gray matter
the arbor vitaw is the
internal region of white matter
the deep cerebellar nuclei is the
gray matter
cerbellum purpose is to ______and______ movements
coordinate;fine tune
the cerbellum ensures muscle activity follows the correct
pattern
the cerebellum stores_______ of previously learned moves
memories
thje cerebellum also regulates activity along _______ and ____ motor paths
voluntary and involuntary
the cerbellum adjusts movements initiated by te
cerebrum
the cerebellum also helps maintain
posture and equilibrium.
how does cerebellum maintain posture and equilibrium
receives propricoceptive information from muscles and joints
the cerebellum also receives ______-and ________
motor plans and sensory feedback
the cerebellum may generate
error correcting signals to be sent to premotor and primary motor cortex
the limbic system is composed of
reticular formation and hippocampus
emotion brain is
limbic system
hippocampus helps form
long term memories
reticular formation has to do with
alterness/awareness of certain sensations
reticular formation is
loosley organized gray matter of brainstem
retilcular formation is necessary for
consciousness
sensory component=RAS
reticular activiating system
reticular formation backs down during
sleep
emotion is associated with
limbic system
amygdala also has
emotional response
typically the emotion related to the amygdala is
fear
how many cranial nerves are there
12 pairs
CN I
olfactory bulb,
CN I. sensory nerve.functions for sense of
sensory: smell
CN II
optic nerve
CN II sensory nerve for
sensory:vision
eyes cross over and form
optic chiasm
CN III
occulomotor nerve
motor : CN III innervates control of
motor: muscles to move eye, ife eye lid, and change lens shape.
CN IV
trochlear
(motor) CN IV controls
superior oblique eye muscle
CN V
trigminel nerves
CN V it is a___. controls muscles for ____; recieves a _______ from face
Sensory: recieves somatic sensation from face
Motor: chewing
CN VI
abducens nerve
(motor) CN VI controls ____ of eye
lateral rectus
CN VII
facial nerve
CN VII its both sensory and motor
motor: controls facial expression muscles
Sensory:taste sensaions from tongue
CN VIII
vestibulochochlear nerve (auditory nerve)
CN VIII is a sensory nerve
sensory: involved in hearing and equilibrium
CN IX
glossopharyngeal nerve
CN IX it both motor and sensory
motor: controls muscles in throat of pharynx
sensory: receives taste and touch from tongue
CN X
vagus
CN X its both sensory and motor
sensory: gets sensory infor from organ called viscera.
motor: can control muscles in pharynx and larynx (voice box)
CN XI
accessory nerve
CN XI it is a motor nerve
motor: controls muscles in neck and pharynx
CN XII
hypoglossal
CN XII motor nerve
motor: controls muscles of tongue
saying to remember cranial nerve names
Oh Oh OH. to touch and feel very good velvet AH
saying to remember cranial nerve functions
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