Brain Neuroanatomy

Front 1

I.

Back 1

Basal Ganglia

Front 2

A.

Back 2

Subcortical group of gray matter nuclei

Front 3

B.

Back 3

Four distinct

Front 4

1.

Back 4

Striatum

Front 5

a)

Back 5

Overactivity due to lack of dopaminergic inhibition

Front 6

(1)

Back 6

Results in bradykinesia, an inability to initiate movements

Front 7

b)

Back 7

Corpus Striatum: collective name for

Front 8

(1)

Back 8

Caudate

Front 9

(a)

Back 9

Important to modulation of motor acts

Front 10

(b)

Back 10

Decreased activity correlated to OCD

Front 11

(c)

Back 11

Gatekeeper for motor system acts that are goal directed

Front 12

(d)

Back 12

When not functioning, OCD and Tourettes

Front 13

(e)

Back 13

Shrinks dramatically in Huntington’s disease

Front 14

(2)

Back 14

Putamen

Front 15

2.

Back 15

Pallidum

Front 16

a)

Back 16

Globus pallidus: 2 parts, internal and external

Front 17

(a)

Back 17

If damaged (carbon monoxide poisoning)dystonic posturing and flapping

Front 18

3.

Back 18

Substantia Nigra

Front 19

a)

Back 19

Presence of melanin makes it look black

Front 20

b)

Back 20

Two parts:

Front 21

(1)

Back 21

Functionally equivalent to Globus Pallidus interna

Front 22

(2)

Back 22

Degenerates in Parkinson’s

Front 23

(a)

Back 23

Rigidity, tremor, depression

Front 24

4.

Back 24

Subthalmic Nucleus

Front 25

a)

Back 25

Lesionsballistic movements