Final Flashcards
(218 cards)
what allows the ability to self-modulate pain response through production of serotonin, endorphin, etc
Periaqueductal gray in the ventricular system
where is the primary auditory cortex located?
Located in transverse temporal gyri of Heschl
part of temporal lobe
what would the light reflex eye exam look like for unilateral L optic nerve lesion aka Optic Neuritis of L Eye
- Direct light into L eye–> no direct response or consensual from right
- direct light into R eye–> get direct and consensual from the left
what CN make up the corticobulbar tracts that innervate the head and neck
(projections to brainstem)
CN 3, 4, 5, 6, 7, 11, 12
what is ageusia
inability to taste
- guided by external stimuli
- (eg., postural control muscles are activated even before reaching for an object)
premotor area of frontal lobe
how do you consider what hemisphere is dominant
Dominant hemisphere is the one which is more important for language comprehension and production (usually L)
- Semidetached mass of neural tissue anchored to the posterior brainstem
- Involved in sensory processing, postural control and coordination of voluntary movements
cerebellum
otoliths of utricles get displaced into semicircular canals
-caused by head trauma, aging, viral, positional
benign positional vertigo
what CN are associated w/ the medulla
CN 9, 10, 11, 12
- information for lower head and neck
neglect to left side is due to
lesion on right parietal lobe
**lesion on right is more common
- Role in planning, learning complex internally generated movement
- Engaged when thinking about activity (i.e. learning to walk again)
SMA of frontal lobe
Projections to hypothalamic centers (in thermoregulation) mediates what?
controls body temperature and maintain constant core body temperature
examples of what type of motor neuron disease/injury?
Polio
Spinal muscular atrophies
LMN
- Respond to muscle load (how contracted a muscle is)
- Excited when contract own muscle
- Reside in tendons or musculotendinous junction
GTOs
non motor complications associated w/ parkinsons
- Cognitive decline
- Daytime sleepiness
- Pain
- Urinary incontinence
- Hallucinations
- Motivational apathy
- Postural hypotension
- Fatigue
what is the fxn of the reticular formation?
integrates fxn of respiration, consciousness and complex motor patterns
Every input (i.e. sense) that is used by conscious awareness makes connection in \_\_\_\_\_→ every movement has to have permission from \_\_\_\_ -Exception: \_\_\_
Thalamus
Exception: Olfaction stops at cortex first then goes to Thalamus
what does the pre-frontal cortex have connections to?
thalamus, hypothalamus and limbic system, reticular formation
(Whatever is happening in limbic system, reticular formation, etc. can affect what is happening in prefrontal cortex)
w/ weber test, hear tone louder in affected ear
unilateral conduction deafness
what is the functional role of the ventricles?
- Contains cerebrospinal fluid (CSF) which
1. Regulates composition of fluid bathing neurons and glial cells
2. Route for certain chemical messengers
signs of LMN disease
- decreased strength, muscle tone*, and stretch reflexes
- SEVERE atrophy
- fasciculations and fibrillations
roles in planning movement, programming complex movements (i.e. reach and grasp)
Pre-motor/SMA (supplementary motor area)
what is Hemianopia
loss of contralateral field from both eyes
can only see left or right side