Cerebrum

Question 1

Describe the content of the anterior commissure of the brain.

Answer 1

White matter tract connecting both temporal lobes of the cerebral cortex across the midline

Question 2

How can we identify the anterior commissure?

Answer 2

It is placed in front of the COLUMNS of the fornix

Question 3

Describe the content of the posterior commissure of the brain.

Answer 3

White matter tract connecting temporal lobes

Question 4

How can we identify the posterior commissure?

Answer 4

Located just dorsally to the cerebral aqueduct

Question 5

The fornix is an important part of what specific system?

Answer 5

The limbic system

Question 6

What are the 4 components of the fornix (rostral to caudal)?

Answer 6

1. Anterior columns
2. Body
3. Crus/posterior column
4. Fimbria

Question 7

The ________ __________ is a white matter structure composed of bundles of myelinated fibers that course past the basal ganglia.

Answer 7

Internal capsule

Question 8

List the components of the internal capsule (IC).

Answer 8

1. Anterior limb
2. Genu
3. Posterior limb

Question 9

How can we identify the anterior limb of the IC?

Answer 9

It lies between the head of the CAUDATE NUCLEUS and the LENTIFORM NUCLEUS

Question 10

How can we identify the posterior limb of the IC?

Answer 10

It lies between the thalamus and lentiform nucleus

Question 11

What do we find in the cingulum and where do we find it?

Answer 11

white matter; it is located beneath the cingulate gyrus

It connects cingulate gyrus and parahippocampal gryus

Question 12

List the true lobes of the cerebrum.

Answer 12

1. Frontal
2. Temporal
3. Parietal
4. Occipital
5. Insula

Question 13

What gyri do we find in the LIMBIC lobe?

Answer 13

1. Cingulate gyrus
2. Parahippocampal gyrus

**Stars anteriorly as cingulate gyrus, then continues into medial temporal region as parahippocampal gyrus, ending in a hook shaped fold called the uncus.

Question 14

What is the limbic system involved in?

Answer 14

Behavioral and emotional responses

Question 15

Inferior frontal gyrus consists of what 3 regions?

Answer 15

1. Pars orbitalis
2. Pars triangularis
3. Par opercularis

Question 16

Inferior lobule of parietal lobe consists of what 2 gyri?

Answer 16

1. Supramarginal gyrus

2. Angular gyrus

Question 17

What fissure separates precunes and cuneus gyri?

Answer 17

Parieto-occipital fissure

Question 18

What fissure separates cuneus gyrus from lingual gyrus?

Answer 18

Calcarine fissure

Question 19

What Broadman’s area is associated with the superior transverse temporal gyrus?

Answer 19

Primary auditory center (Area 41 and 42)

Question 20

What is included in the basal ganglia striatum?

Answer 20

Caudate nucleus (head, body, tail)
Nucleus accumbens

Question 21

What is included in the basal ganglia lentiform nucleus?

Answer 21

Putamen
Globus pallidus externus
Globus pallidus internus

Question 22

What region of the brain is the integrative center for emotions, emotional behavior, and motivation?

Answer 22

Amygdala

Question 23

What region of the brain relays information about recollective memory through the fornix to the mammillary bodies?

Answer 23

Hippocampus