Diencephalon : Thalamus & hypothalamus

Question 1

The anterior nucleus

Answer 1

input : mammillary bodies
projects to : cingulate gyrus
= limbic system {Emotions/recent memory}

Question 2

Mediodorsal (dorsomedial) nucleus

it is reciprocally connected to the prefrontal cortex

It has abundant connections with the intralaminar nuclei

Answer 2

Input: Amygdala, substantia nigra, temporal neocortex
Funct: expression of affect, emotions and behavior (limbic func)

damage = memory loss (Wernicke-korsakoff syndrome)

Question 3

centromedial nucleus (largest intralaminar nucleus)

reciprocally connected to the motor cortex (Brodmann’s area 4)

Answer 3

Input: globus pallidus
Projects to : striatum (caudate nucleus + putamen) and projects diffusely to the entire neocortex

Question 4

Pulvinar (largest thalamic nucleus )

It is a lateral thalamic nuclei

reciprocal connections with the association cortex of the occipital, parietal, and posterior temporal lobes.

Answer 4

input: lateral & medial geniculate bodies & superioir colliculus
Func: integration of visualm auditory & somesthetic

Damage : Sensory dysphasia

Question 5

Ventral anterior nucleus

Answer 5

input : globus pallidus + substantia nigra
Projects to: prefrontal cortex, orbital cortex, premotor cortex (BD area 6)

Question 6

Ventral lateral nucleus

Answer 6

Input : cerebellum** (dentate nucleus)**, globus pallidus + substantia nigra
Projects to : motor corex (BD 4) + Supplementary cortex (BD 6)