Neuroanatomy

Question 1

The blood brain barrier is located between which two meningeal layers?

Answer 1

arachnoid and pia

Question 2

Turning your eye laterally via the lateral rectus muscle requires innervation from which cranial nerve?

Answer 2

CN VI (aka abducens)

Question 3

Which cranial nerves emerge from the pons/medulla junction? (3)

Answer 3

CN VI, CN VII, CN VIII

Question 4

Which horn contains visceral cell bodies?

Answer 4

lateral (intermediate) horn

Question 5

The cerebral peduncles are also known as the ____.

Answer 5

crus cerebri

Question 6

What part of the brain releases dopamine?

Answer 6

substantia nigra in the mesencephalon

Question 7

Name the cavity of the midbrain that joins the third and fourth ventricles.

Answer 7

cerebral aqueduct

Question 8

The parietal lobe extends to the paretio-occipital sulcus and is divided by two sulci. Name the two sulci.

Answer 8

postcentral and intraparietal suki

Question 9

Secreto-motor parasympathetic innervation of the submandibular, sublingual and lacrimal gland are from which cranial nerve?

Answer 9

CN VII (aka facial nerve)

Question 10

Where is the primary visual cortex (VI) located?

Answer 10

most posterior aspect of occipital lobe

Question 11

Which cranial nerves pass through the jugular foramen?

Answer 11

CN IX, CN X, CN XI

Question 12

Trace eight steps in the flow of CSF, from the choroid plexus to the dural venous sinuses.

Answer 12

choroid plexus, lateral ventricle, third ventricle, cerebral aqueduct, fourth ventricle, subarachnoid space, arachnoid villi (site for resorption), dural venou sinuses

Question 13

Where in the brain is fear conditioned?

Answer 13

amygdala

Question 14

White matter in the spinal cord are divided into which three funiculi (columns)?

Answer 14

anterior, lateral and posterior funiculi

Question 15

Which cranial nerves exit the brainstem caudal to the pons? (7)

Answer 15

CN VI-CN XII

Question 16

Name the space that separates the arachnoid mater from the dura mater.

Answer 16

subdural space

Question 17

CN XII exits from which location in the skull?

Answer 17

hypoglossal canal

Question 18

Where in the spinal column are the two spinothalamic tracts located? Where do these tracts decussate?

Answer 18

both the anterior and lateral spinothalamic tracts decussate at the level of the spinal cord.

Question 19

Which cortex is found within the frontal lobe and is involved in planning complex cognitive behaviors?

Answer 19

prefrontal cortex

Question 20

Name the three receptors in the anteriolateral system.

Answer 20

CN V-CN VIII

Question 21

At what level does the adult spinal chord end?

Answer 21

L2

Question 22

Where is the calcarine sulcus located and which other sulcus joins the calcarine sulcus at n acute angle?

Answer 22

located on the medial surface and is joined by the parieto-occipital sulcus

Question 23

What is the main function of the reticulospinal tract?

Answer 23

simulation of midline and proximal extensor muscles

Question 24

Name the chief function of the occipital lobe

Answer 24

vision

Question 25

Which cranial nerves exit the brain stem rostral to the pons?

Answer 25

CN I- CN V

Question 26

Name the structure that is located caudally on the brain stem and is within the myelencephalon.

Answer 26

medulla oblongata

Question 27

What is a consequence of a lesion in the cerebellar hemisphere?

Answer 27

limb ataxia and intention tremor

Question 28

Where is the central sulcus located?

Answer 28

between the precentral and postcentral gyri

Question 29

What is a consequence of a lesion in Wernicke’s area?

Answer 29

sensory, (fluent, receptive) aphasia

Question 30

How many pairs of spinal nerves are there?

Answer 30

31

Question 31

The third branch of CN V exits from which location of the skull?

Answer 31

foramen ovale

Question 32

The hypothalamus contains afferent fibers that connect with which major structures? (3)

Answer 32

mesencephalon, limbic system and cerebellum

Question 33

Which cranial nerves emerge from the pons?

Answer 33

CN V

Question 34

Name the space that the spinal cord is located within.

Answer 34

subarachnoid space

Question 35

Name the cranial nerves that innervate the facial muscles (extraocular muscles excluded)

Answer 35

trigeminal (CN V): mastication; facial (CN VII): facial movement

Question 36

What is found in the subarachnoid space?

Answer 36

CSF

Question 37

Where are the inferior cerebral preduncles located and what structures do they connect?

Answer 37

located posterior to the olives and connect the medulla to the cerebellum.

Question 38

The brain stem is composed of which three structures?

Answer 38

midbrain, pons and medulla

Question 39

‘Mi mi mi’ tests which CN?

Answer 39

CN VII - facial (innervation of lips)

Question 40

What is the function of Broadman’s area 4 and where is it located?

Answer 40

execution of isolated movements on the contralateral side of the body. Primary motor area.

Question 41

Which portion of the reticulospinal tract has a small crossed component.?

Answer 41

medullary