the cranial nerves Flashcards by Imogen Adam

Q

what is CN I (olfactory nerve) responsible for

A

olfaction/smell

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is the CN II (optic nerve) responsible for

A

vision/sight

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is the CN III (vestibulo-cochlear nerve) responsible for

A

balance and hearing

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what do dorsal roots innervate

A

all structures

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what do ventral roots innervate

A

somites

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

how many pharyngeal arches are there in segment 1

A

0

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

how many pharyngeal arches are there in segment 2

A

1

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

how many pharyngeal arches are there in segment 3

A

2

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

how many pharyngeal arches are there in segment 4

A

3

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

how many pharyngeal arches are there in segment 5

A

4

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

how many pharyngeal arches are there in segment 6

A

5

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

how many pharyngeal arches are there in segment 7

A

6

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is the ventral root nerve for segment 1

A

III occulomotor

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is the ventral root nerve for segment 2

A

IV trochlear

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is the ventral root nerve for segment 3

A

VI abducent

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is the ventral root nerve for segment 4

A

none

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

what is the ventral root nerve for segment 5

A

none

Q

what is the ventral root nerve for segment 6 + 7

A

XII hypoglossal

Q

somite of segment 1

A

most orbital muscles

Q

somite of segment 2

A

dorsal oblique

Q

somite of segment 3

A

lateral rectus and retractor

Q

somite of segment 4 + 5

A

none

Q

somite of segment 6 + 7

A

somites migrate to form tongue muscles

Q

dorsal root nerve of segment 1

A

V trigeminal (opthalmic)

dorsal root nerve of segment 2

V trigeminal (maxillary and mandibular)

dorsal root nerve of segment 3

VII facial

dorsal root nerve of segment 4

IX glosso-pharyngeal

dorsal root nerve of segment 5

X/XI vagal-accessory complex

dorsal root nerve of segment 6

none

dorsal root nerve of segment 7

X/XI vagal accessory complex

ectoderm of segment 1

skin of top of head

ectoderm of segment 2

skin of face rostral 2/3 of tongue

ectoderm of segment 3,4,5

negligible

ectoderm of segment 6 and 7

none

endoderm of segment 1+2

none

endoderm of segment 3

thyroid gland

endoderm of segment 4

pharynx caudal 1/3 of tongue carotid body/sinus

endoderm of segment 5

rostral larynx common pharynx

endoderm of segment 6

none

ectoderm of segment 7

caudal larynx, oesophagus respiratory