Cranial Nerves & Spinal Tracts Flashcards

1
Q

CN I

A

Olfactory
- Smell
- SENSORY

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2
Q

CN II

A

Optic
- vision
- SENSORY

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3
Q

CN III

A

Oculomotor
- Eye movements (up, down, in)
- Constrict pupil
- MOTOR

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4
Q

CN IV

A

Trochlear
- Eye movement (adduct, down)
- MOTOR

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5
Q

CN V

A

Trigeminal
- Sensory: facial sensation, cornea
- Motor: chewing

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6
Q

CN VI

A

Abducens
- Eye movement (abduct)
- MOTOR

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7
Q

CN VII

A

Facial
- Motor: Facial expressions, close eyes,
saliva and tears
- Sensory: Taste (anterior 2/3 tongue)

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8
Q

CN VIII

A

Vestibulocochlear
- Vestibular nerve: equilibrium and balance
- Cochlear nerve: hearing
- SENSORY

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9
Q

CN IX

A

Glossopharyngeal
Sensory: Taste (posterior 1/3 tongue)
Motor:
- Pharynx control
- swallowing
- saliva
- soft palate rising with “ah” sound
- aids in reflex control of BP
- respiration
- gag reflex

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10
Q

CN X

A

Vagus
- MOTOR & SENSORY
- Slows HR and visceral activity (mostly
parasympathetic fibers)
- larynx control, lungs, bronchi
- heart
- stomach, small intestine, gall bladder
- voice production

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11
Q

CN XI

A

Accessory
- MOTOR
- Shoulder shrug (traps)
- SCM

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12
Q

CN XII

A

Hypoglossal
- MOTOR
- Motor function of tongue

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13
Q

Lateral Spinothalamic

A
  • SENSORY
  • pain, temp, crude touch on opposite side
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14
Q

Anterior Spinothalamic

A
  • SENSORY
  • Crude touch and pressure
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15
Q

Fasciculi gracilis & cuneatous

A
  • SENSORY
  • Discriminating touch and pressure sensations (vibration, stereognosis, 2-point discrimination)
  • Conscious kinesthesia
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16
Q

Anterior & Posterior Spinocerebellar

A
  • SENSORY
  • Subconscious kinesthesia
17
Q

Spinotectal

A
  • SENSORY
  • Touch related to visual reflexes
18
Q

Lateral Corticospinal

A
  • MOTOR
  • Voluntary movement
  • Contraction of individual or small muscle groups on the OPPOSITE side.
    - hands
    - fingers
    - feet
    - toes
19
Q

Anterior Corticospinal

A
  • MOTOR
  • Voluntary movement
  • Contraction of individual or small muscle groups on the SAME side.
    - hands
    - fingers
    - feet
    - toes
20
Q

Reticulospinal

A
  • MOTOR
  • Maintain posture during movement
21
Q

Rubrospinal

A
  • MOTOR
  • Coordination of body movement and posture
22
Q

Tectospinal

A
  • MOTOR
  • Head and neck movement during visual reflexes
23
Q

Vestibulospinal

A
  • MOTOR
  • Coordination of posture and balance
24
Q
A