SPAUD 210: 4/10

affect ability to turn eye in different directions

what does lesions to CN III, IV, and VI result in?

increases jaw jerk reflex

what does lesion to the UMN portion of CN V do?

weakness and atrophy of chewing muscles

what does lesion to the LMN portion of CN V do?

sagging/paralyzed face

what does lesion to CN VII do?

Bell's Palsy

comes from compression of Facial Nerve from cold weather

ipsilateral hearing loss and disturbances in equilibrium

what does lesion to CN VIII do?

hypernasality, swallowing problems

what does lesion to CN X do?

impacts swallowing (pharyngeal stage)

what does lesion the CN IX do?

unable to turn head away from side of lesion

what does lesion to CN XI do?

unilateral lesion -- loss of tongue movement on side of lesion?

what does lesion to CN XII do?

diencephalon

Contains thalamus and hypothalamus

thalamus

2 egg-like structures in the center of the brain

thalamus

thalamus

collection of nuclei

1. relay point for all sensory info except smell

2. begin to perceive pain and temp (but not localized)

3. maintains cortical activity for sleep, waking, and arousal

4. Imarts pleasantness to sensations

what are the functions of the thalamus?

thalamus

what portion of the brain can feel pain?

thalamic aphasia

what aphasia results from damage to the thalamus?

hypothalamus

mammillary body

what other structure does the hypothalamus contain?

1. metabolism/water balance

2. autonomic NS (sympathetic/parasympathetic)

3. expressions of emotion

4. sleep/waking

5. body temp

6. food intake regulation

7. regulating sexual behavior

what are the 7 functions of the hypothalamus?

caudate nucleus, putamen

what is the corpus striatum made of?

caudate nucleus

A

putamen

outside part of this blue shell

lentiform nucleus

blue part

pallidum

little bean inside blue part

regulating movement, coordinating muscle groups for posture, walking

suppression of competing movements and decreasing muscle tone

cognitive and personality functions

basal ganglia functions

1. rigidity/muscle tone

2. resting tremors

what symptoms of impacted substantia nigra do those with PD have?

1. involuntary movement

2. rigidity/muscle tone

3. resting tremors

damage to the basal ganglia results in?

basal ganglia

where is the substantia nigra located?

chorea

sudden, jerky, purposeless movements associated with damage to the caudate nucleus

caudate nucleus

what does huntington's disease/chorea result from damage to?