Neuro Flashcards
What gives taste to anterior 2/3 of tongue
facial n (CN 7)
What gives taste to posterior 1/3 of tongue
Glossopharyngeal n (CN 9)
If Oculomotor n (CN 3) is down then what will occur
- inability to elevate eye
- inability to depress eye
- inability to adduct eye
If Trochlear n (CN 4) is down then what will occur
inability to depress and adduct the eye
What muscle does the trochlear n (CN 4) innervate
superior oblique
What will occur if the Trigeminal n (CN 5) is down
- loss of facial sensation
- loss of jaw reflex
- jaw deviation toward side of lesion
- loss of corneal reflex
- loss of masseter and temporalis contraction with active jaw closing
What will occur if the Abducens n (CN 6) is down
adduction of the eye (due to loss of ability to abduct the eye)
What will occur if the Facial N (CN 7) is down
- loss of taste to ant 2/3 of tongue
- loss of facial expressions
Gag reflex will be impacted by what nerve being down
Glosspharyngeal (CN 9) or Vagus n (CN 10)
Uvular deviation AWAY from lesion will be seen by what CN being down
CN 10: Vagus N
Inability to protrude tongue and lateral deviation of tongue TOWARDS the lesion will be seen with what CN being down
CN 12: Hypoglossal
Which two cranial nerves will have CL deviation (away from side of lesion) when down
- Facial (CN 7)
- Vagus (CN 10)
Which two cranial nerves will have IL deviation (towards side of lesion) when down
- Trigeminal (CN 5)
- Hypoglossal (CN 12)
Lack of awareness of the body structure or relationship of body parts
Somatoagnosia
Severe condition lack of awareness of one’s paralyssi
Anosagnosia
Cannot recognize objects presented
Visual agnosia
No idea of how to perform an action (no concept of what to do)
Ideational apraxia
Can only perform a task automatically and cannot perform it on demand
Ideomotor apraxia
Clinical findings with Spinal Accessory nerve (CN 11) injury
- Decr cervical lordosis
- Downwardly rotated scap
- Lateral winging of scapula
- Neck, shoulder, medial scapular pain
What innervates the supraspinatus, infrapsinatus
Suprascapular N (C5-C6)
What nerve levels are impacted with Erb’s palsy
C5-C6
What will be seen with suprascapular nerve injury
- Dull ache in lateral shoulder
- Atrophy/weakness with supraspinatus and infraspinatus
- Incr scapular elevation with arm elevation
What does the Musculocuteaneous nerve (C5-C6) innervate
Coracobrachialis, Brachialis, and Biceps brachii
What provides sensory input to lateral forearm
Musculocutaneous n (C5-C6)