7th 328-377 neuro A

Question 1

What are sulci?

Answer 1

Grooves/depressions between gyri.

Question 2

What sulcus separates the temporal lobe from the frontal and parietal lobe?

Answer 2

The lateral sulcus (sylvian fissure).

Question 3

Define insula.

Answer 3

A portion of cerebral cortex folded deep in the lateral sulcus; forms the floor of the lateral sulcus.

Question 4

What is the function of Broca’s area?

Answer 4

Language production.

Question 5

Within what lobe is Wernicke’s area located?

Answer 5

The dominant (usually left) temporal lobe.

Question 6

What is the function of Wernicke’s area?

Answer 6

It is involved in the comprehension of written and spoken language.

Question 7

What are the functions of the frontal lobes?

Answer 7

Motor function, problem solving, judgement, personality, social and sexual behaviour.

Question 8

Where is the primary somatosensory cortex located?

Answer 8

In the post-central gyrus of the parietal lobe.

Question 9

What are the functions of the parietal lobes?

Answer 9

SOMATOSENSORY function. The dominant lobe is involved in perception, interpretation of sensory information, language and mathematical operations. The non dominant lobe has visiospatial functions.

Question 10

What are the motor and sensory homunculi?

Answer 10

Proportional somatotopical representations of how much of the cortex innervates certain body parts.

Question 11

How many horns does the lateral ventricle have and what are they called?

Answer 11

3 horns.

Anterior, posterior and inferior.

Question 12

What is the foramen between the lateral ventricles and 3rd ventricle called?

Answer 12

The foramen of Munro.

Question 13

What is the foramen between the 3rd and 4th ventricle called?

Answer 13

The cerebral aqueduct.

Question 14

What are the foramen called that connect the 4th ventricle to the subarachnoid space?

Answer 14

The foramina of luschka (lateral) and the foramen of magendie (medial).

Question 15

Where is choroid plexus located?

Answer 15

Along the choroid fissure of the lateral ventricle and in the roof of the 3rd and 4th ventricle.

Question 16

Where is choroid plexus located?

Answer 16

Along the choroid fissure of the lateral ventricle and in the roof of the 3rd and 4th ventricle.

Question 17

What are the 4 anatomical divisions of the corpus callosum?

Answer 17

1. Rostrum.
2. Genu.
3. Body.
4. Splenium.

Question 18

Which anatomical division of the corpus callosum lies most posteriorly?

Answer 18

Splenium

Question 19

What gyrus lies immediately above the corpus callosum?

Answer 19

The cingulate gyrus.

Question 20

What structure forms the roof of the lateral ventricles?

Answer 20

Corpus callosum

Question 21

What are commissural fibres?

Answer 21

Fibres linking similar functional areas of the two hemispheres together e.g. the corpus callosum is composed of commissural fibres.

Question 22

What structure divides the midbrain into dorsal and ventral parts?

Answer 22

The cerebral aqueduct.

Question 23

What forms the dorsal midbrain?

Answer 23

Tectum

Question 24

What is the tectum of the midbrain composed of?

Answer 24

The inferior and superior colliculi.

Question 25

What forms the ventral midbrain?

Answer 25

The cerebral peduncle.

Question 26

What is the cerebral peduncle of the midbrain composed of?

Answer 26

A dorsal tegmentum and a ventral crus cerebri.

Question 27

What structure divides the tegmentum from the crus cerebri?

Answer 27

The substantia nigra.

Question 28

What are the crus cerebri?

Answer 28

White matter bundles emerging from the cerebral hemispheres.

Question 29

What is the attachment between the midbrain and cerebellum called?

Answer 29

The superior cerebellar peduncles.

Question 30

What is the function of the pineal gland?

Answer 30

Melatonin synthesis

Question 31

What is the midline sulcus on the ventral surface of the pons called?

Answer 31

The basilar sulcus (where the basilar artery lies).

Question 32

What is the sulcus called that forms the caudal border of the pons?

Answer 32

Bulbopontine sulcus

Question 33

What is the medullary striae?

Answer 33

Ponto-cerebellar fibres that divide the floor of the 4th ventricle into a rostral pontine half and a caudal medullary half.

Question 34

What are the midline fissures of the medulla called?

Answer 34

- The anterior median fissure (ventral). | - The posterior median fissure (dorsal).

Question 35

What lies lateral to the posterior median sulcus?

Answer 35

The gracile tubercle (dorsal column nuclei that participate in the sensation of fine touch and proprioception of the lower body).

Question 36

What lies lateral to the gracile tubercle?

Answer 36

The cuneate tubercle (dorsal column nuclei that participate in the sensation of fine touch and proprioception of the upper body).