Lec 6 External Morphology of the brain and spinal cord

Question 1

What are the 6 lobes of the cerebral cortex?

Answer 1

• frontal
• parietal
• occipital
• temporal
• insular
• limbic

Question 2

What is the function associated with the frontal lobe of the cerebral cortex?

Answer 2

motor behavior
cognition
affect

Question 3

What 4 structures make up the diencephalon?

Answer 3

• thalamus
• epithalamus
• hypothalamus
• subthalamus

Question 4

What is the function associated with the parietal lobe of the cerebral cortex?

Answer 4

seomesthesis

equilibrium

Question 5

What is the function associated with the occipital lobe of the cerebral cortex?

Answer 5

vision

Question 6

What is the function associated with the temporal lobe of the cerebral cortex?

Answer 6

audition

memory

Question 7

What is the function associated with the insular lobe of the cerebral cortex?

Answer 7

taste

Question 8

What is the function associated with the limbic lobe of the cerebral cortex? [hint mneumonic]

Answer 8

five Fs

• Feeding
• Flleing
• Fighting
• Feeling
• Sex

Question 9

What 5 major structures are part of the limbic system?

Answer 9

• cingulate gyrus
• hippocampus
• amygdala
• fornix
• mammillary bodies

Question 10

What one sulcus and one gyrus in pariental lobe?

Answer 10

• postcentral gyrus

- pariet-occipital sulcus

Question 11

What two gyri in frontal lobe?

Answer 11

• inferior frontal gyrus

- precentral gyrus

Question 12

What one sulcus and one fissure in occiptal lobe?

Answer 12

• parieto-occipital sulcus

- calcarine fissure

Question 13

What sulci/gyri in limbic lobe?

Answer 13

• callosal sulcus
• cigulate gyrus/sulcus
• parahippocampal gyrus
• subcallosal gyrus

Question 14

Where are motor fibers located in relation to brainstem?

Answer 14

on the ventral aspect of the brainstem

Question 15

List the cranial nerves in order. [Mneumonic]

Answer 15

Oh Oh Oh to touch and feel virgin girls vaginas and hymens

• Olfactory
• Optic
• Oculomotor
• Trochlear
• Trigeminal
• Abducens
• Facial
• Vestibulo-cochlera
• glossopharyngeal
• vagus
• accessory
• hypoglossal

Question 16

What is function of Broca’s area?

Answer 16

speach production

Question 17

What is function of wernicke’s area

Answer 17

speach comprehension

Question 18

What is function of heschl’s gyri

Answer 18

auditory cortex

Question 19

What is function of the insular lobe?

Answer 19

gustatory cortex

Question 20

What is significant about the pyramidal decussation?

Answer 20

marks the transition from brainstem to spinal cord

Question 21

What cranial nerves emerge from the level of the midbrain?

Answer 21

• CN III and IV [oculomotor + trochlear]

Question 22

What is the function of the superior colliculus of the midbrain?

Answer 22

• eye movement

Question 23

What is the function of the inferior colliculus of the midbrain?

Answer 23

• auditory system

Question 24

What is the function of the periaqueductal gray [PAG] area of the midbrain?

Answer 24

pain perception and processing

Question 25

Which cranial nerves emerge from the level of the pons?

Answer 25

• CN V, VI, VII, VIII

Question 26

Where is the 4th ventricle located?

Answer 26

• in the pons and upper medulla

Question 27

Where does CN II exit?

Answer 27

the interpeduncular fossa

Question 28

Which cranial nerves exit the level of the upper medulla?

Answer 28

• CN IX, X, XI

Question 29

Which cranial nerves exit the level of the lower medulla?

Answer 29

• CN XIII

Question 30

Where are the two spinal cord enlargements?

Answer 30

cervical = C5-C8
lumbosacral = L3-S2