W2: Cerebrum and Cerebellum Lab 2

Question 1

What brainstem structure attaches to the middle peduncle?

Answer 1

Pons

Question 2

Name a part of the cerebral cortex that is directly superior to the cerebellum.

Answer 2

Occipital cortex

Question 3

Ventricular System

Answer 3

A series of fluid filled cavities in the CNS formed from the space inside of the neural tube.

Question 4

What creates CSF?

Answer 4

Cerebral spinal fluid is formed by the choroid plexus within the ventricles. It flows throughout the ventricular system.

Question 5

Basal Ganglia

Answer 5

A group of related nuclei (gray matter) found in the core of the telencephalon, embedded in white matter. They regulate certain aspects of movement. (Caudate, putamen, globus pallidus)

Question 6

Lateral ventricles

Answer 6

two “C-shaped” lateral ventricles and each has an anterior, posterior, and inferior horn

Question 7

Interventricular foramen

Answer 7

opening that connects the lateral and third ventricles

Question 8

Third ventricle

Answer 8

midline structure bordered by the thalamus and hypothalamus

Question 9

Cerebral aqueduct

Answer 9

connects the third and fourth ventricles

Question 10

Fourth ventricle

Answer 10

lies anterior to the cerebellum

Question 11

Central canal

Answer 11

located throughout the spinal cord

Question 12

Caudate

Answer 12

Divided into 3 sections (head, body, tail). Large and “c-shaped”.
On a horizontal cross-section - the body arches up out of the section plane, the cross-section shows the anterior and posterior tail

Question 13

Putamen

Answer 13

Found lateral to the caudate, adjacent to the globus pallidus

Question 14

Globus pallidus

Answer 14

found medial to the putamen

Question 15

Thalamus

Answer 15

lies medial to the caudate

Question 16

Internal capsule

Answer 16

white matter (fibers) that seperates the caudate and the putamen (corpus striatum), giving them a “striped” appearance.

Question 17

What structures make up the internal nuclei of the diencephalon?

Answer 17

thalamus

hypothalamus

Question 18

What structures make up the internal nuclei of the telencephalon?

Answer 18

caudate, putamen, globus pallidus

Question 19

What are the general structures in cross-sections of the cerebral cortex?

Answer 19

gray matter
white matter
internal nuclei
central ventricular system

Question 20

Why might the nuclei of the hypothalamus not be illustrated in a horizontal cross-section?

Answer 20

Lies inferior to horizontal

Question 21

Why might the body of the caudate nucleus not be illustrated in a horizontal cross-section?

Answer 21

Lies superior to horizontal

Question 22

What nuclei border the internal capsule?

Answer 22

Globus pallidus, thalamus, putamen, caudate

Question 23

What kind of axons travel through the internal capsule?

Answer 23

both afferent and efferent

Question 24

Where do fiber tracts cross from one cerebral hemisphere to the other?

Answer 24

Corpus callosum

Question 25

Name the type of axons found in the corpus callosum

Answer 25

commisoral axons