Exam #3: Lab V

Question 1

What artery supplies the lateral surface of the cortex?

Answer 1

MCA

Question 2

What is the function of the association tracts?

Answer 2

Sending information from one part of the hemisphere to another part of the IPSILATERAL hemisphere

Question 3

List the three association tracts.

Answer 3

1) Superior longitudinal fasiculus
2) Uncinate fasciculus
3) Occipitofrontal fasciculus

Question 4

What structure lies deep to the association tracts?

Answer 4

Internal capsule

Question 5

What direction are the fibers of the internal capsule directed?

Answer 5

Vertically

Question 6

What is the corona radiata?

Answer 6

Extension of the internal capsule that spreads toward the cortex

Question 7

What are the optic radiations?

Answer 7

Tracts that carry information from the thalamus to the visual cortex

Question 8

What two basal nuclei is the anterior limb of the internal capsule associated with?

Answer 8

1) Caudate (Head of the Caudate)

2) Putamen

Question 9

What nuclear group sits lateral to the third ventricle?

Answer 9

Thalamus

Question 10

What is the wall between the lateral ventricles?

Answer 10

Septum pellucidum

Question 11

What are commisural tracts?

Answer 11

White matter tracts that carry information from hemisphere to CONTRALATERAL hemisptere

Question 12

What does the anterior white commissure connect?

Answer 12

Frontal and temporal lobes

Question 13

Where is the external capsule?

Answer 13

OUTSIDE of the basal nuclei (vs. the internal capsule that is inside the basal nuclei)

Question 14

What is the fornix?

Answer 14

Tract that runs from the mammillary bodies to the limbic lobe

Question 15

Where can you find the column of the fornix?

Answer 15

Inferior to the septum pellucidum

Question 16

What is the region of the cortex that surround the corpus callosum?

Answer 16

Cingulate gyrus

Question 17

When the cingulate gyrus narrow anteriorly, what is this structure called?

Answer 17

Isthmus of the cingulate gyurs

Question 18

What does the isthmus of the cingulate gyrus connect to?

Answer 18

Parahippocampal gyrus

Question 19

What is the most medial aspect of the parahippocampal gyrus called?

Answer 19

Uncus

Question 20

What structure is deep to the uncus?

Answer 20

Amygdala

Question 21

What structure are the mammillary bodies part of?

Answer 21

Hypothalamus

Question 22

What white matter attaches the hypothalamus to the limbic system?

Answer 22

Fornix

Question 23

In an anterior coronal section, what basal nuclei will border the lateral ventricle?

Answer 23

Caudate (Head of the Caudate)

Question 24

How does the anterior limb of the internal capsule appear on coronal section?

Answer 24

“Striated”

*Bordered by the Head of the Caudate & the Putamen

Question 25

What is the nucleus accumbens?

Answer 25

Fusion of the head of the caudate with the putamen *Important to motivation and reward (addiction)

Question 26

What white matter tract is lateral to the thalamus?

Answer 26

Posterior limb of the Internal Capsule

Question 27

What are disorders of the amygdala association with?

Answer 27

- Olfactory & gustatory hallucinations | - De ja vu

Question 28

What structure is posterior to the amygdala?

Answer 28

Hippocampus

Question 29

What is the hallmark of the midbrain?

Answer 29

Red Nucleus

Question 30

What structure sits superior and lateral to the Substantia Nigra?

Answer 30

Subthalamic Nuclei

Question 31

What structure sits between the superior colliculi?

Answer 31

Epithalamus

Question 32

What part of the corpus callosum is anterior? What part of the corpus callosum is posterior?

Answer 32

``` Anterior= genu Posterior= splenium ```

Question 33

What is the extreme capsule?

Answer 33

White matter association tract that is lateral to the claustrum

Question 34

What is the claustrum?

Answer 34

Grey matter strip lateral to the external capusle

Question 35

Where is the tail of the caudate?

Answer 35

Posterior aspect of the lateral ventricle

Question 36

What structure sits posterior to the optic chiasm?

Answer 36

Stalk of the pituitary/ infundibulum

Question 37

What is the difference between a T1 & T2 weighted image on MRI?

Answer 37

T1= enhances fluid

Question 38

What space does CSF flow through in the brain and spinal cord?

Answer 38

Subarachnoid space

Question 39

What makes up the basis pontis?

Answer 39

Transverse white matter fibers

Question 40

What artery sits in the midline of the pons?

Answer 40

Basilar artery

Question 41

What is the hallmark for the dentate nucleus on cross-section?

Answer 41

It looks like a row of teeth

Question 42

What fissure separates the cerebellum from the occipital lobe?

Answer 42

Transverse fissure ****Tentori cerebellum is located here

Question 43

What does the primary fissure separate?

Answer 43

Anterior lobe & posterior lobe of the cerebellum

Question 44

What does the posterolateral fissure separate?

Answer 44

Posterior lobe from the nodulus

Question 45

What are the grooves in the cerebellum on mid-sagittal section called?

Answer 45

"Folia" b/c they look like leaves

Question 46

What is the medulla of the cerebellum?

Answer 46

White matter of the cerebellum

Question 47

What is the flocculus inferior and lateral to?

Answer 47

MCP

Question 48

What is the flocculus connected to?

Answer 48

Nodulus (which is more midline)

Question 49

What is the flocularnodular lobe responsible for functionally?

Answer 49

Balance & posture

Question 50

What cranial nerve is associated with the flocularnodular lobe?

Answer 50

CN VIII