Cranial Nerves and Pathways

Question 1

Name the 12 cranial nerves in order

Answer 1

I - Olfactory
II - Optic
III - Oculomotor
IV - Trochlear
V - Trigeminal
VI - Abducens
VII - Facial
VIII - Vestibulocochlear
IX - Glossopharyngeal
X - Vagus
XI - Accessory
XII - Hypoglossal

Question 2

Which cranial nerves are motor nerves

Answer 2

Oculomotor, Trochlear, Abducens, Accessory, Hypoglossal

Question 3

Which cranial nerves are sensory nerves

Answer 3

Olfactory, Optic, Vestibulocochlear

Question 4

Which cranial nerves are both motor and sensory nerves

Answer 4

Trigeminal, Facial, Glossopharyngeal, Vagus

Question 5

What do the filaments that pass through the cribriform plate of ethmoid bone synapse to

Answer 5

Olfactory bulb

Question 6

Which part of the brain produces emotional responses to smell

Answer 6

Amygdala

Question 7

Which part of the brain produces visceral responses to smell

Answer 7

Reticula formation

Question 8

Which part of the brain is associated with olfactory memory

Answer 8

Hippocampus

Question 9

What is the most direct olfactory projection pathway

Answer 9

Olfactory reception pathways > Olfactory tract > Hypothalamus > Reticular formation

Question 10

Which part of the optic nerve pathway do axons partially cross over

Answer 10

Optic chiasm

Question 11

What is the optic nerve pathway within the eye, before the optic foramen (include placement of optic nerve)

Answer 11

Rods and cones > Bipolar neurons > Ganglion Cells > (Optic nerve) > Subcortical and cortical visual areas

Question 12

What is the optic nerve pathway within the brain, past the optic foramen

Answer 12

Optic nerve > Optic Chiasm > Optic tract > Superior Colliculus > Lateral geniculate > Optic radiation > Occipital lobe

Question 13

What side of the visual field/world does the temporal retina see

Answer 13

Nasal visual field/world

Question 14

What side of the visual field/world does the nasal retina see

Answer 14

Temporal visual field/world

Question 15

Axons of the retinal ganglion cells

Answer 15

Optic nerve

Question 16

Fibers originated from nasal retina cross over to the opposite side

Answer 16

Optic chiasm

Question 17

Contains crossed axons from nasal retina and uncrossed axons from temporal retina

Answer 17

Optic tract

Question 18

Processes and relays visual information to visual cortex

Answer 18

Lateral geniculate nucleus of the thalamus

Question 19

Visual reflex centers controlling the extrinsic eye muscles

Answer 19

Superior colliculus

Question 20

Processes visual information concerned with shape, colour and movement

Answer 20

Visual association areas (occipital lobe)

Question 21

Processes basic visual information such as contrast info and object orientation, as well as conscious perception of visual images

Answer 21

Primary visual cortex (occipital lobe)

Question 22

What do ventral parts of the temporal lobe do concerning complex visual processing

Answer 22

identify objects in the visual field (what)

Question 23

What does the parietal lobe do concerning complex visual processing

Answer 23

assess spatial location of objects (where)

Question 24

what does the frontal cortex do concerning complex visual processing

Answer 24

uses visual information to guide eye movement

Question 25

Which fissure do the oculomotor nerves pass through to reach the eye

Answer 25

Superior orbital fissure