Lab 3: the basal ganglia

Question 1

The common Carotid Artery

Answer 1

Splits into an external and an internal

Question 2

the vertebral artery

Answer 2

Branches into the basilar artery

Question 3

what forms the circle of willis

Answer 3

the basilar and the internal carotid

Question 4

Anterior Inferior Cerebellar Artery (AICA)

Answer 4

is the separation off the basilar artery on the medulla

Question 5

The pontine arteries

Answer 5

Small branches of the basilar on top of the pons

Question 6

Superior Cerebellar Artery

Answer 6

First branch of the basilar on after the pons
supplies the cerebellum

Question 7

Posterior Cerebral Artery

Answer 7

the 2nd branch of the basilar after the pons

Question 8

Middle cerebral artery

Answer 8

-Branches off the circle of willis near where the carotid artery comes in.
-80 Percent of Strokes occur here due to the quick change in size of the arteries

Question 9

Branches of the middle cerebral artery

Answer 9

1) lenticulostrate arteries
- very small near internal capsule
2) MCA superior
3) MCA inferior

Question 10

MCA sections

Answer 10

M1: stem: massive stroke involving ventriculo-straite arteries, thalamus, and basal ganglia
M2: sylvian
M3: cortical superior and inferior

Question 11

what lobes does the MCA flow too

Answer 11

frontal, temporal and parietal as while as the deep structures of the brain

Question 12

Contents of the Basal Ganglia

Answer 12

1) Caudate Nucleus
2) Putamen
3) globus
4) Subthalamic nucleus
5) substantia nigra

Question 13

Purpose of the basal ganglia

Answer 13

1) Helps with vision and motion
2) Makes emotion and movement more seamless
3) Provides motivation for movement