Neuro Lab 2

Question 1

Precentral Gyrus

Answer 1

Brodmann’s Area: 4

Functions: Primary Motor Cortex; Execution of movement (distal muscles)

Question 2

Precentral Sulcus

Answer 2

Function: Separates Precentral Gyrus from Prefrontal Lobe

Question 3

Superior Frontal Gyrus

Answer 3

Brodmann’s Area: 6
Functions: Lateral Premotor Area (Posterior Region of Gyrus; Anterior to Area 4); Motor Programming, sensory guidance of limb movements, initiation and sequencing of movements

Question 4

Superior Frontal Sulcus

Answer 4

Function: Separates Superior Frontal Gyrus from Middle Frontal Gyrus

Question 5

Middle Frontal Gyrus

Answer 5

Brodmann’s Area: 8
Function: Frontal Eye Fields (Posterior Region of Middle and Posterior Superior Frontal Gyrus); Voluntary Eye Movements and Conjugate Gaze

Question 6

Inferior Frontal Sulcus

Answer 6

Function: Separate Middle Frontal Gyrus from Inferior Frontal Gyrus

Question 7

Pars Opercularis (Inferior Frontal Gyrus)

Answer 7

Brodmann’s Area: 44

Function: Broca’s Area; Motor Aspects of Speech

Question 8

Pars Triangularis (Inferior Frontal Gyrus)

Answer 8

Brodmann’s Area: 45

Function: Broca’s Area; Motor Aspects of Speech

Question 9

Postcentral Gyrus

Answer 9

Brodmann’s Areas: 3,1,2

Functions: Primary Somatosensory Area

Question 10

Postcentral Sulcus

Answer 10

Functions: Separates Postcentral Gyrus from superior and inferior parietal lobules

Question 11

Superior Parietal Lobule

Answer 11

Brodmann’s Area: 5,7
Functions: Sensory Association Area; Integrates sensory and motor functions and aids in programming complex motor functions (with premotor cortex)

Question 12

Interparietal Sulcus

Answer 12

Functions: Separates Superior and Inferior Parietal Lobules

Question 13

Supramarginal Gyrus (Inferior Parietal Lobule)

Answer 13

Brodmann’s Area: 40
Function: Receive input from auditory and visual cortices and perform higher complex perceptions and spatial relations; dominant in left hemisphere

Question 14

Angular Gyrus (Inferior Parietal Lobule)

Answer 14

Brodmann’s Area: 39
Function:Receive input from auditory and visual cortices and perform higher complex perceptions and spatial relations; dominant in left hemisphere

Question 15

Lateral Occipital Gyri

Answer 15

Brodmann’s Area: 17
Function: Primary Visual Cortex (distal tip of lobe) Vision

Brodmann’s Area: 18,19
Function: Visual Association Areas (Anterior Portion of Lobe) Organize/Integrate Visual Stimuli

Question 16

Superior Temporal Gyrus

Answer 16

Brodmann’s Area: 22

Function: Wernicke’s Area (Posterior Portion of Gyrus) associated with understanding speech (perception)

Question 17

Transverse Temporal Gyri of Heschl

Answer 17

Brodmann’s Area: 41
Function: Primary Auditory Cortex (Hearing)
Brodmann’s Area: 42
Function: Auditory Association Area (Speech and Language Comprehension)

Question 18

Perisylvian Cortex

Answer 18

Function: Upper and Lower Banks of Lateral Sulcus (Sylvian Sulcus); related to language

Question 19

Superior Temporal Sulcus

Answer 19

Function: Separates Superior Temporal Gyrus from Middle Temporal Gyrus

Question 20

Middle Temporal Gyrus

Answer 20

Function: Associated with perception of moving objects in the visual field, memory

Question 21

Inferior Temporal Sulcus

Answer 21

Function: Separates Midle Temporal Gyrus from Inferior Temporal Gyrus

Question 22

Inferior Temporal Gyrus

Answer 22

Function: Recognition of faces, memory

Question 23

Occipitotemporal Sulcus

Answer 23

Function: Separates Inferior Temporal Gyrus from Occipitotemporal Gyrus (seen more inferiorly)

Question 24

Paracentral Lobule

Answer 24

Medial Structure
Brodmann’s Area: Ant. 4, Post 3,1,2
Function: Primary Motor and Somatosensory; bisected by Central Sulcus

Question 25

Superior Frontal Gyrus

Answer 25

Medial Structure
Brodmann’s Area: Posterior Portion 6
Function: Supplemental Motor Area. Involving Motor Programming

Question 26

Cingulate Sulcus

Answer 26

Medial Structure

Function: Separates Superior Frontal Gyrus from Cingulate Gyrus

Question 27

Cingulate Gyrus

Answer 27

Medial Structure
Brodmann’s Area: 23, 24
Function: Emotions and “drive”

Question 28

Callosal Sulcus

Answer 28

Medial Structure

Function: Separates Cingulate Gyrus from Corpus Callosum

Question 29

Precuneus

Answer 29

Medial Structure
Brodmann’s Area: 7
Function: Sensory Association Area
Anterior Border: Marginal Branch of Cingulate Sulcus
Posterior Border: Parieto-Occipital Sulcus

Question 30

Cuneus

Answer 30

Medial Structure
Brodmann’s Area: Primary 17; Association 18, 19
Function: Vision;
– Banks of the Calcarine Sulcus: Primary Vision (Striate Cortex)
–On either side of primary vision is Vision Association Area (Extrastriate Cortex)

Question 31

Lingual Gyrus

Answer 31

Medial Structure

Function: Sits inferiorly to calcarine sulcus

Question 32

Parahippocampal Gyrus

Answer 32

• HIPPOCAMPUS is deep

- Memory

Question 33

Uncus

Answer 33

• Amygdala is deep
• Emotional Memories and Behavior
• Structure to herniated through tectorial notch with high ICP

Question 34

Gyrus Rectus

Answer 34

• Most medial gyri of frontal lobe

Question 35

Olfactory Sulcus

Answer 35

Sits laterally to Gyrus Rectus; Separates Gyrus Rectus from Orbital Gyri

Question 36

Olfactory Tract and Bulb

Answer 36

Sense of Smell

Question 37

Orbital Gyri

Answer 37

Prefrontal Areas Associated with Limbic Lobe

Question 38

Collateral Sulcus

Answer 38

Separates Parahippocampal Gyrus from Occipitotemporal Gyri

Question 39

Occipitotemporal Gyri

Answer 39

Fusiform Gyrus