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Anatomy Module 3 > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

CN I

A

olfactory nerve

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2
Q

CN II

A

optic nerve

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3
Q

CN VIII

A

vestibulo-cochlear nerve

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4
Q

CN III

A

occulomotor nerve

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5
Q

CN IV

A

trochlear nerve

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6
Q

CN VI

A

abducens nerve

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7
Q

CN XI

A

spinal accessory nerve

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8
Q

CN XII

A

hypoglossal nerve

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9
Q

CN V

A

trigeminal nerve

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10
Q

CN VII

A

facial nerve

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11
Q

CN IX

A

glossopharyngeal nerve

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12
Q

CN X

A

vagus nerve

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13
Q

Connected to the brain rostral to the mid brain

Actual evaginations from the central nervous system?

A

Cranial Nerves I and II

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14
Q

Functional Classification of Neurons?

A 
Sensory neurons
Association neurons
Sensory association neurons
Motor association neurons
Motor neurons
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15
Q

Sends impulses to the CNS?

A

Sensory Neurons

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16
Q

Located in the cerebral and spinal ganglia, except for the mesencephalic nucleus, which is located in the middle pons and lower mid brain lateral to the iter?

A

Sensory Neurons

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17
Q

Carry impulses from one neuron to another?

A

Association Neurons

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18
Q

Sends impulses towards the effectors, which is usually a skeletal muscle?

A

Motor Neurons

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19
Q

Effector organs in the autonomic nervous system?

A

Cardiac muscle
Smooth muscle
Glands

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20
Q

Morphological Classification of Nerves?

A

Unipolar neuron
Pseudo-unipolar neuron
Bipolar neuron
Multipolarneuron

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21
Q

With a common stem dividing into an axon and a dendrite?

A

Pseudo-UnipolarNeurons

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22
Q

Two processes of Bipolar Neurons?

A

Axon

Dendrite

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23
Q

Axon is long and terminates far from where the nerve cell body lies?

A

Golgi Type I

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24
Q

Axon is short and terminates close to the cell body?

A

Golgi Type II

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25
Q

Classification of Sensory Neurons?

A

General Somatic Afferent (GSA)
General Visceral Afferent (GVA)
Special Visceral Afferent (SVA)
Special Somatic Afferent (SSA)

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26
Q

Stimulus comes from the skin, joints, tendons, skeletal muscles and bones which are carried towards the CNS?

A

General Somatic Afferent (GSA)

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27
Q

Can be found in both the cerebral and spinal ganglia?

A

General Somatic Afferent (GSA)

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28
Q

Stimulus comes from the visceral organs?

A

General Visceral Afferent (GVA)

29
Q

Found in both the spinal and visceral ganglia

A

General Visceral Afferent (GVA)

30
Q

Stimulus comes from the olfactory and gustatory areas, which are related to the digestive system?

A

Special Visceral Afferent (SVA)

31
Q

Found only in cerebral ganglia?

A

Special Visceral Afferent (SVA)

32
Q

Stimulus comes from the visual, auditory and vestibular areas?

A

Special Somatic Afferent (SSA)

33
Q

Derived from the body wall during development (ectoderm) and found in cerebral ganglia?

A

Special Somatic Afferent (SSA)

34
Q

Also known as Interneuronsor Internuncialneurons?

A

Association Neurons

35
Q

Located between the sensory and motor neurons?

A

Association Neurons

36
Q

Conduct nerve impulses from sensory neurons to the motor neurons and most numerous of the functional types of neurons?

A

Association Neurons

37
Q

T or F:
Morphologically, all association neurons are multipolar except the bipolar cells located in the interlayer and ganglion cell layer of the retina?

A

T

38
Q

Axons of these association neurons may either form part of a reflex arc or may form ascending or descending fiber tracts?

A

Association Neurons

39
Q

In higher centers, association neurons are located in the?

A

Cerebral cortex
Basal ganglia
Cerebellarcortex
Diencephalon

40
Q

In the lower centers, association neurons are found in some?

A

Brainstem nuclei
Nucleus gracilis
Nucleus cuneatus

41
Q

Mitral cells in the olfactory bulb?

A

Olfactory nerve

42
Q

Main sensory nucleus and nucleus of the trigeminal spinal tract?

A

Trigeminal nerve

43
Q

Nucleus of the solitary tract?

A

Facial, Glossopharyngealand Vagusnerves

44
Q

Association neuron for touch and pressure?

A

Main Sensory Nucleus of the Trigeminal Nerve

45
Q

Association neuron for pain and temperature and association neuron for general somatic afferent impulses passing in the facial nerve, glossopharyngeal nerve and vagus nerve?

A

Nucleus of the Trigeminal Spinal Tract

46
Q

Association neuron for the facial nerve, glossopharyngeal nerve and vagus nerve?

A

Nucleus of the Solitary Tract

47
Q

Association neuron for visceral efferent impulses (both cranial and general) passing through the same cranial nerves?

A

Nucleus of the Solitary Tract

48
Q

Association Neurons of the CN VIII?

A

Dorsal and ventral cochlear nuclei

Vestibular nuclei

49
Q

Association neurons for impulses originating from the spiral ganglion of Corti?

A

Dorsal and ventral cochlear nuclei

50
Q

Association neurons for impulses arising from the Scarpa’sganglion?

A

Vestibular nuclei

51
Q

Classification of Motor Neurons?

A
  • General Somatic Efferent (GSE) or General Somatic Motor (GSM)
  • Special Visceral Efferent (SVE) or Special Visceral Motor (SVM)
  • General Visceral Efferent (GVE)
52
Q

Motor Neurons of the Midbrain?

A

Upper and Lower midbrain

53
Q

Axons pass in the oculomotor nerve and supply all the extra-ocular muscles, EXCEPT _____?

A

Lateral rectus and superior oblique muscles

54
Q

Motor Neuron of the Middle Pons?

A

Motor Nucleus of the Trigeminal Nerve (SVE)

55
Q

Motor Neuron of the Lower Pons?

A

AbducensNucleus (GSE)
Facial Motor Nucleus (SVE)
Superior SalivatoryNucleus (GVE)

56
Q

Located in the pons, anterior to the floor of the fourth ventricle, near the midline?

A

Abducens Nucleus

57
Q

Motor fibersto the lateral rectus?

A

Abducens Nucleus

58
Q

Located in the lateral reticular formation of the caudal pons?

A

Facial Motor Nucleus

59
Q

Motor fibers supply the muscles of facial expression?

A

Facial Motor Nucleus

60
Q

Located posterolateral to the nucleus of CN VII?

A

Superior Salivatory Nucleus

61
Q

Axons pass in the facial nerve and fibers divide into two groups which are?

A
  • Synapse with the Sphenopalatine ganglion

- Synapse with the Submandibularganglion (postganglionic neuron), via the chordatympani branch

62
Q

Motor Neurons of the Upper Medulla?

A

–Inferior salivatory nucleus (GVE)
–Dorsal motor nucleus of the vagus nerve (GVE)
–Nucleus ambiguus(SVE)
–Hypoglossal nucleus (GSE)

63
Q

Motor Neuron of the Lower Medulla?

A

Spinal accessory nucleus (SVE)

64
Q

T or F:

Axons pass in the hypoglossal nerve to supply intrinsic or extrinsic muscles of the tongue and geniglosssi

A

F

Axons pass in the hypoglossal nerve to supply intrinsic AND extrinsic muscles of the tongue and geniglosssi

65
Q

T or F:
Axons are preganglionic fibers passing in the vagus nerve and synapse with the parasympathetic ganglia, in the walls of the larynx, trachea, bronchi, heart, esophagus, stomach, small intestines, large intestines up to the splenic flexure

A

T

66
Q

In the intestines, the ganglia are the _______ and ________.

A

Myenteric ganglia and Meissner’s ganglia

67
Q

Axons of these terminal ganglia are postganglionic fibers supplying the smooth muscles and glands in these organs as well as the cardiac muscles?

A

Dorsal Motor Nucleus of CN X

68
Q

They join the fibers of the cranial roof and exit through the jugular foramen and separate from the cranial roof to supply the sternocleidomastoir and trapezius muscles?

A

Spinal Accessory Nucleus

Anatomy Module 3 (4 decks)

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