3 Eps Motor System - Springer

Front 1

What role does the EPS play in somatic motor activity, especially willed movements?

Back 1

1. Initiations and execution
2. Automatic stereotyped postural and reflex motor activity

Front 2

What comprises the basal ganglia?

Back 2

Striatum (caudate, putamen, nucleus accumbens), globus pallidus, subthalamic nucleus, and substantia nigra

Front 3

What EPS motor system components have direct access to the spinal cord?

Back 3

1. Red nucleus
2. Reticular formation
3. Vestibular nucleus

Front 4

1. Corpus striatum = ?
2. Neostriatum (striatum) = ?
3. Paleostriatum = ?

Back 4

1. caudate, putamen, globus pallidus
2. caudate, putamen
3. globus pallidus

Front 5

1. Lenticular nucleus = ?
2. Archistriatum = ?

Back 5

1. putamen, globus pallidus
2. Amygdala, Basal n. of Meynert, nucleus accumbens

Front 6

Give the relative locations of the nuclei around the internal capsule.

Back 6

1. Head of caudate --> medial to anterior limb of IC
2. globus pallidus and putamen are lateral

Front 7

The columns of the fornix are the anterior boundary of what? What's makes up this structure's posterior boundary?

Back 7

Foramen of Monroe = ant. boundary
VA of thalamus = post. boundary

Front 8

What is the relation of the head of the caudate to the thalamus?

Back 8

Anterior to thalamus, bulging into the lateral ventricle
(the thalamus makes up more of the floor of the lateral ventricle)

Front 9

What/where is the claustrum?

Back 9

a sheet of grey matter between the external capsule and extreme capsule that flanks the putamen
(lies between the lentiform nucleus and the insular cortex)

Front 10

What is the Field of Forel?

Back 10

Thalamic fasciculus - bundles of axons that is below the thalamus and consists of three defined, white matter areas of the subthalamus.

Front 11

To where does the centromedian (CM) nucleus of the thalamus?

Back 11

Putamen

Front 12

A lesion in the subthalamic nucleus results in what?

Back 12

Contralateral hemiballismus

Front 13

To where in the EPS does the cortex project?
What NT is used?

Back 13

1. Putamen and caudate
2. Glu

Front 14

To where in the EPS does the striatum project?
What NT is used?

Back 14

2. globus pallidus
2. GABA/Enkephalin and GABA/Substance P

Front 15

To what nuclei in the thalamus does the globus pallidus project?
What NT is used?

Back 15

1. VA
2. GABA

Front 16

What is the ansa lenticularis?

Back 16

A bundle of fibers that loops around the anterior limb of the internal capsule and goes to the VA of the thalamus.

Front 17

What/where is the lenticular fasciculus?

Back 17

A bundle of fibers that goes out of the GP, cuts through the internal capsule, and ends in the VA of the thalamus.
This is part of the H2 Field of Forel.

Front 18

What/where are the dentothalamic fasciculi?

Back 18

Joins the ansa lenticularis and the lenticular fasciculus in the H Field of Forel.

Front 19

Which Field of Forel has all three ansa lenticularis, lenticular fasciculus, and dentothalamic fasciculi?

Back 19

H1

Front 20

To where does the VA of the thalamus project?
VL?

Back 20

VA --> mostly to area 6; some to area 4

VL --> mostly to area 4; some to area 6

Front 21

To where does the substantia nigra reticulata project?
What NT is used?

Back 21

1. thalamus, superior colliculus, and reticular formation
2. GABA

Front 22

To where does the substantia nigra compacta project?
What NT is used?

Back 22

1. caudate, putamen (striatum)
2. dopamine

Front 23

Are the rubrospinal and tectospinal tracts crossed or uncrossed?

What's the supposed function of the rubrospinal tract?

Back 23

1. Crossed
2. Reflexic turning of the head away from an incoming object