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Anatomy 403 > NEURO 3 > Flashcards

NEURO 3 Flashcards

1
Q

Brainstem

A

Connects spinal cord and diencephalon/cerebrum

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2
Q

Reticular system

A

Within brainstem, general awareness
Connections to diencephalon and spinal cord
Centers for cardio and respiratory

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3
Q

Medulla oblongata

A

Most inferior
Ventral - pyramid and olivary eminence
Dorsal - cerebellum
IX, X, XI, XII

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4
Q

Pons

A

Floor of 4th ventricle
Connect to cerebellum
Nerves V, VI, VII, VIII

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5
Q

Midbrain

A

Merges with diencephalon
Bases contain crus cerebra and substantia nigra
Roof contains tectum
Cerebral aqueduct passes thru
Nerves III, IV

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6
Q

CN1

A

Olfactory
Sensory
Olfactory mucosa to olfactory bulb to limbic cortex
Above nasal cavity

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7
Q

CN2

A

Optic
Sensory
Neural retina to thalamus
Crosses at optic chiasm
Behind eyes

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8
Q

CN3

A

Oculomotor
Motor
Somatic - innervates 5 eye muscles
Parasymphathetic - innervates 2 eye muscles
Under optic nerve

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9
Q

CN4

A

Trochlear
Motor
Somatic innervates 1 eye muscle
Side of pons

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10
Q

CN5

A

Trigeminal
Both
Three branches = ophthalmic, mandibular, maxillary
Muscle of mastication
Face and oral cavity sensation
Thick

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11
Q

CN6

A

Abducens
Motor
Somatic innervates 1 eye muscle
Bottom of pons

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12
Q

CN7

A

Facial
Both
Facial expression, taste and sensation for anterior 2/3 of tongue
Wet glands EXCEPT parotid
Parasympathetic
Next to trigeminal

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13
Q

CN8

A

Vestibulocochlear
Sensory
Cochlear branch for hearing, vestibular branch for balance
Under facial

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14
Q

CN9

A

Glossopharyngeal
Both
Taste and sensation of posterior 1/3 of tongue
Parotid gland
Under vestibular cochlear
Parasympathetic

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15
Q

CN10

A

Vagus
Both
Chest and abdominal viscera
Parasympathetic

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16
Q

CN11

A

Accessory
Motor
Innervates SCM and traps
Hangs vertically like a scarf

17
Q

CN12

A

Hypoglossal
Motor
Muscles of tongue
Drapes into hole (mouth)

18
Q

Sensory system

A

3 neuron chain

19
Q

Dorsal column/medial leminscus system

A

Fine touch, proprioception
1. Receptor in skin
2. DRG
3. Fasciculus cuneatus (arm) or fascicles gracious (leg)
4. Interneuron in brainstem, crosses midline
5. Nucleus cuneatus (arm) or nucleus gracilus (leg)
6. Internal arcuate
7. Ascend to VPN of thalamus
8. Internal capsule
9. 1ary sensory cortex

20
Q

Anterolateral system (ALS)

A

Gross touch, pain, temp
1. Receptor in skin
2. DRG
3. Interneuron in spinal cord, crosses midline
4. VPN in thalamus

21
Q

Anterior/posterior spinocerebellar tracts

A

Proprioception

Anatomy 403 (13 decks)

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