Internal Capsule Flashcards Preview

Board Review: Spinal Anatomy CNS Anatomy Review > Internal Capsule > Flashcards

Flashcards in Internal Capsule Deck (14)
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1
Q

WHat is a small but important structure in the brain?

A

Internal Capsule

2
Q

The internal capsule is important because?

A

The fibers that it contains

3
Q

The anterior limb of the internal capsule lies between what?

A

Caudate nucleus and lentiform nucleus

4
Q

The posterior limb of internal capsule lies between what?

A

Lentiform nucleus and thalamus

5
Q

The thalamus acts as a relay station for what?

A

All sensory input to cortex EXCEPT olfaction

6
Q

The globus pallidus, putamen, and caudate nucleus are collectively called what?

A

Basal Ganglia

7
Q

The basal ganglia controls complex patterens of what?

A

Voluntary motor behavior

8
Q

The internal capsule is divided into what three parts?

A

Anterior limb
Genus
Posterior limb

9
Q

Anterior limb carries what?

A

Thalamocortical fibers (sensory from below head)

10
Q

Genu (bend) carries what?

A

Corticobulbar fibers (motor to head)

11
Q

Posterior limb carries what?

A

Corticospinal tract (motor to below head)
Auditory and visual association fibers
Thalamocortical fibers

12
Q

Blood supply to anterior limb is from what?

A

Anterior and Middle cerebral arteries

13
Q

Blood supply to genu is from what?

A

Middle cerebral A

14
Q

Blood supply to posterior limb is from what?

A

Middle cerebral A

Anterior choroidal A from internal carotid A