Lobes & Function: Cerebral Hemispheres

Question 1

Precentral gyrus

• Anterior paracentral lobule (area 4)
• Frontal Lobe

Answer 1

Primary motor cortex (direct motor area)

Question 2

Anterior to motor cortex
Medial cortex anterior to primary motor
-Frontal Lobe

Answer 2

Premotor area (motor programming & indirect motor motor area)
-Sends axons to lower brainstem & other brain areas (indirect motor area)

Question 3

Caudal middle/superior frontal gyri

-Frontal Lobe

Answer 3

Frontal Eye Fields

-Responsible for voluntary eye movements [left hemisphere responsible for right control]

Question 4

Supplementary motor area (medial surface)

-Frontal Lobe

Answer 4

Motor movement

• Organizing/planning
• Motor movements
• Cortical micturition control center (controls urination)

Question 5

Prefrontal Cortex

-Frontal Lobe

Answer 5

Attention, motivation, planning, abstraction, problem solving (cognition), planned behavior, subjective judgement, social skills, emotional behavior/personality, “working memory” or short-term memory (intermediate memory)

Question 6

Broca’s area (left inferior frontal gyrus) (areas 44, 45)

-Frontal Lobe

Answer 6

Formulation of speech (IMP) - then info sent to the motor area from here to help form the speech

Question 7

Right inferior frontal gyrus

-Frontal Lobe

Answer 7

Language expression (prosody of speech) - expressing discipline, happiness, sadness in your speech/tone

Question 8

Postcentral gyrus
-posterior paracentral lobule
(area 3, 1, 2 <– know!!)
-Parietal Lobe

Answer 8

Somatosensory association cortex (if deficit - can’t describe what something feels like)

Question 9

Inferior pareital lobule

-Parietal Lobe

Answer 9

Multimodal association cortex (integration- synthesizes information and sends it over to frontal lobe through white matter in medulla)

Question 10

Posterior parietal lobule (left)

-Parietal Lobe

Answer 10

Analytical skills

Question 11

Posterior parietal lobule (right)

-Parietal Lobe

Answer 11

Visuospatial orientation

Question 12

Calcarine cortex (area 17-KNOW) (lingual gyrus and cuneus)
-Occipital Lobe

Answer 12

Primary visual cortex

Question 13

Lateral, medial and inferior occipital gyri

-Occipital Lobe

Answer 13

Visual association cortex (color, motion, depth)

Question 14

Lateral occipital gyri

-Occipital Lobe

Answer 14

Involuntary cortical eye fields (scanning movements)

Question 15

Transveres temporal gyri (Heschi’s convolutions) (areas 41 & 42) - near lateral fissure
-Temporal lobe

Answer 15

Primary auditory cortex (hearing)

Question 16

Superior temporal gyrus
(Wernicke’s area)
-Temporal Lobe

Answer 16

Auditory association

Language comprehension

Question 17

Hippocampal formation

-Temporal Lobe

Answer 17

Learning/memory consolidation (long-term memory)

Question 18

Temporal Lobe!!

Answer 18

Memory storage (long0term storage)

Question 19

Frontal lobe, parietal lobe, occipital lobe, temporal lobe (association cortex)
-Temoral Lobe

Answer 19

Long-term storage of memories

Question 20

Rostral parahippocampal gyrus, uncus, temporal polem limen insulae
-Limbic lobe

Answer 20

Primary olfactory cortex

Question 21

Under frontal, temporal and parietal lobes (under lateral fissure)
-Visceral Cotex

Answer 21

• Involved in visceral functions: smell, taste, pain

- Integrates visceral input (olfactory, gustatory and pain and thermal information)