Neuro Fns Lect #26

Front 1

A plane through the interventricular foramen and optic chiasm is the (caudal, rostral, medial, lateral) boundary of the diencephalon?

Back 1

Rostral

Front 2

A plane through the posterior commissure and caudal border of mammillary bodies is the (rostral, caudal, medial, lateral) border of the diencephalon?

Back 2

Caudal

Front 3

What is the medial boundary of the diencephalon?

Back 3

Third ventricle

Front 4

What is the most lateral boundary of the diencephalon?

Back 4

Internal Capsule

Front 5

This subdivision of the diencephalon inculdes the stria medullaris thalami, habenular nuclei, pineal body, and posterior commissure?

Back 5

Epithalamus

Front 6

This subdivision of the diencephalon is just below the hypothalamic sulcus?

Back 6

Hypothalamus

Front 7

This structure is important because it recieves all sensory systems that ascend to the cerebral cortex except olfaction?

Back 7

Dorsal Thalamus

Front 8

What are the five nuclear groups of the dorsal thalamus named by location…not including the reticular nuclei and midline nuclei?

Back 8

Anterior nuclear group; Medial nuclear group; Lateral nuclear group; Intralaminar nuclear group; Posterior Nuclear group

Front 9

TRUE/FALSE ALL thalamic nuclei project to the cerebral cortex?

Back 9

FALSE( reticular nuclei do not)

Front 10

What is the only input destined for the cerebral cortex that is not relayed from the thalamus?

Back 10

Olfaction (conveyed to the cortex first, then to thalamus)

Front 11

Are there few or many connections between major thalamic nuclei?

Back 11

FEW (except for the extensive connections of the inralaminar nuclei)

Front 12

What are the three functional categories of thalamic nuclei?

Back 12

Relay, Diffuse connection, Subcortical

Front 13

This category of thalamic nuclei consists of just one nuclear group which does not send axons to the cerebral cortex but rather to other thalamic nuclei (Relay, Diffuse, Subcortical)

Back 13

Subcortical

Front 14

At what coronal slice does the IML (internal medullary lamina) separate the anterior nuclear group from the more lateral ,ventral anterior nucleus?

Back 14

Slice through the dorsal thalamus through the interventricular foramen and optic chiasm

Front 15

What two afferent connections does the anterior nuclear group get?

Back 15

Mammillary Body through the MTT; Hippocampal Formation via the fornix

Front 16

Where does the anterior nuclear group send efferent fibers to?

Back 16

cingulate gyrus of the limbic lobe

Front 17

Where does the ventral anterior nucleus receive afferents from?

Back 17

Basal Ganglia (MPS, SN, PR); and Thalamic nuclei (intralaminar nuclei)

Front 18

Efferents from the ventral anterior nucleus that come from afferents of the basal ganglia go to what?

Back 18

supplementary motor area (medial premotor cortex)

Front 19

Efferents from the ventral anterior nucleus which arise from fibers of the intralaminar nuclei go to what?

Back 19

Diffuse projections to the frontal lobe

Front 20

What are the afferent connections that project to the dorsal medial nucleus in the dorsal thalamus?

Back 20

Amygdala & Olfactory Cortex; Substantia Nigra and Pars Reticulata

Front 21

Efferent projections from the dorsal medial nucleus that arise from the substantia nigra go to what?

Back 21

Frontal eye fields on middle frontal gyrus

Front 22

Efferent projections from the dorsal medial nucleus that arise from the amygdala go to what?

Back 22

Prefrontal Cortex

Front 23

What are the afferent inputs to the ventral lateral nucleus of the dorsal thalamus?

Back 23

Basal Ganglia (Vla) and contralateral cerebellum(VLp) (deep cerebellar nuclei)

Front 24

Where do the efferents from Vla go to?

Back 24

supplementary motor area (medial premotor cortex)

Front 25

Where do efferents of the VLp go to?

Back 25

Lateral Premotor Cortex and Primary Motor Cortex

Front 26

This thalamic nucleus is associated with emotions and autonomic relationship to behavior?

Back 26

Anterior Nuclear Group

Front 27

This thalamic nucleus is part of ARAS and relays motor functions related to basal ganglia?

Back 27

Ventral Anterior Nucleus

Front 28

The function of this thalamic nucleus is olfactory processing, emotion, memory, pain(emotional), stress related to the amygdala and motor functions of the basal ganglia?

Back 28

Dorsal Medial

Front 29

This thalamic nucleus is involved with motor functions related to the cerebellum (posteriorly) and motor functions related to the basal ganglia (anteriorly)?

Back 29

Ventral Lateral (Vla and VLp)