Specific Paths

Question 1

Geniculostriate Pathway

Answer 1

Photoreceptors -> Bipolar Cells -> ganglion cells -> V1 -> LGN

Question 2

Dorsal Stream Pathway

Answer 2

V1 -> V2 -> V5/MT -> Posterior parietal cortex

Question 3

Ventral Stream Pathway

Answer 3

V1 -> V2 -> V4 -> Inferior Temporal Cortex

Question 4

Tectopulvinar Pathway

Answer 4

Ganglion cells -> Superior Calliculus -> Pulvinar in the thalamus -> parietal and temporal lobes

Question 5

Circadian Rhythm Path

Answer 5

Ganglion Cells -> Superchiasmatic Nucleus

Question 6

Primary Auditory Pathway

Answer 6

Cochlea -> Auditory nerve -> Cochlear Nucleus (DECUSSATES) -> trapezoid body -> superior olivary cortex -> inferior calliculus -> MGN thalamus -> A1

Question 7

Dorsal Column DCML

Answer 7

Touch receptors -> ipsilateral medulla (DECUSSATES) -> VPL Thalamus -> S1-> S2

Question 8

Pain Pathway

Answer 8

Nociceptors -> 1st synapse in spinal chord (DECUSSATES) -> VPL Thalamus -> S1

Question 9

Spinomesencephalic Tract

Answer 9

Nociceptors -> 1st synapse in spinal chord (DECUSSATES) -> PAG -> VPL Thalamus -> S1

Question 10

PAG

Answer 10

PAG -> Raphe Nuclei -> Dorsal horn inhibits the neurons

Question 11

Corticospinal Tract

Answer 11

Upper motor Neurons in M1 (DECUSSATES) -> Lower motor neurons -> Skeletal muscles