Chapter 35 Primary Intracranial Neoplasm

Question 1

Frontal and parietal lobes are separated by?

Answer 1

Central sulcus

Question 2

Frontal and temporal lobes are separated by?

Answer 2

Sylvian fissure

Question 3

Parietal and occipital lobes are separated by?

Answer 3

Calcarian sulcus

Question 4

What constitute Diencephalon

Answer 4

Thalamus and pineal region

Question 5

What is the function of internal capsule?

Answer 5

It carries motor fibers(UMN) from cortex to brainstem and spinal cord

Question 6

What cranial nerve nuclei are located in mesencephalon/midbrain?

Answer 6

CN III, IV, proprioceptive division of V

Question 7

Superior and inferior colliculi in midbrain regulate?

Answer 7

Superior colliculi regulate eye movement

Inferior colliculi regulate hearing impulse

Question 8

Which is the only cranial nerve exit dorsally from midbrain?

Answer 8

CN IV Trochlear

Question 9

Which cranial nerve nuclei are located in Pons?

Answer 9

Motor and tactile sensory nuclei for trigeminal nerve

Question 10

Which cranial nerve emerge from lateral surface of pons?

Answer 10

CN V

Question 11

What cranial nerves emerge between pons and medulla?

Answer 11

CN VI, VII, VIII

Question 12

What cranial nerve nuclei are located in medulla?

Answer 12

CN VI, VII, VIII, IX, X, XI, XII

Question 13

Describe CSF pathways

Answer 13

Lateral ventricle -> Foramina of Munro -> Third ventricle -> Aqueduct of Sylvius -> Fourth Ventricle -> Midline Foramen of Magendie and two Lateral Foramina of Luschka -> Subarachnoid space

Question 14

CSF resorption occurs at?

Answer 14

Arachnoid granulation or Pacconian granulations

Question 15

What percentage incidence of primary brain tumor in children associated with prophylactic cranial irradiation for acute leukemia?

Answer 15

2.3%

Question 16

What are the causes associated with development of CNS tumors?

Answer 16

Occupational Farmer, petro-chemical worker
Environmental 
Ionizing radiation
Hereditary 
Cellular phones!!!

Question 17

Arrange brain tumors that cause edema in descending order

Answer 17

Metastasis>Astrocytoma>Meningioma>Oligodendroglioma

Question 18

Leptomeninges consists of which layers of meningeal layers?

Answer 18

Arachnoidmater