Intro to Brain Anatomy-Medial View

Question 1

Review Deck 1

Name the parts pointed in this image

Answer 1

Question 2

Name the parts of the brain in the Frontal and Parietal lobes seen from the Medial View

Answer 2

Starting from the frontal and superior part of the brain going down:

• Cingulate Sulcus
  
  • At its end
    
    • Marginal Ramus of cingulate sulcus
• CingulateGyrus
• Corpus Callosum
• Thalamus

At the anterior of the brain:

• Pre-cuneus
• Parieto-occipital Fissure
• Cuneus
• Calcarine Sulcus
• Lingual Gyrus
  
  • called like this because tongue shaped

Question 3

Where is V1 found?

Answer 3

Within the banks of the calcarine sulcus

Question 4

Supplemental Motor Area (cortex)

SMA

Answer 4

• Location:
  
  • Besides the paracentral sulcus and the cingulate sulcus
• Also known as M2

Question 5

Where is the Paracentral Sulcus?

Answer 5

• Only visible from the medial view
• Between the limit of the brain and the cingulate sulcus

Question 6

Cuneus

Answer 6

• Location:
  
  • Between:
    
    • Parieto-occipital fissure
    • Calcarine sulcus
• Is a region containing many sulci and gyri

Question 7

Paracentral Lobule

Answer 7

• Location:
  
  • Between brain border and cingulate sulcus
    
    • ​yellow part of the image
• Contains:
  
  • continuation of the Central sulcus
  • continuation of M1 of the foot
  • continuation of S1 (somatosensory cortex) of the foot

Question 8

The Paracentral Lobule contains the ____ and _____ of the part of the body called _______

Answer 8

• M1
• S1
• foot

Question 9

Parahippocampal Gyrus

Answer 9

• Contains (From up to down):
  
  • Thalamus
  • Hippocampal Sulcus
  • Pyriform Cortex
  • Entorhinal Cortex
  • Parahippocampal Cortex
  • Rhinal Sulcus
  • Collateral Sulcus
  • Fusiform Gyrus
  • Occipito-Temporal Sulcus
  • Inferior Temporal Gyrus (ITG)
• L4 p.22:
  
  • Used to be referred as Rhinencephalon (nose brain)
  • Patient H.M.
    
    • Important for Memory consolidation
  • Pyriform cortex
  • Entorhinal cortex
  • Parahippocampal cortex

Question 10

Hippocampus

Answer 10

• Also known as archicortex
  
  • First cortex
• Only one layer of neurons
  *

Question 11

Limbic Cortex

Answer 11

• Connects the cingulate gyrus and the parahippocampal gyrus
• Phylogenetically old cortex
• Used to be called limbic lobe
• Less than 6 layers

Question 12

Cingulate Gyrus

Answer 12

• Part of the Limbic Cortex
• 5 layers of 5.5

Question 13

Insula

Answer 13

• Location:
  
  • Within the Sylvian fissure, covered by the frontal, parietal and temporal opercula
• Has a central sulcus
• 3 short gyri:
  
  • motor processing
• 2 long gyri:
  
  • somatosensory processing
• Sits under the pre and post central gyri of the lateral surface

Question 14

Heschl’s Gyri

Answer 14

• Also known as Transverse Temporal Gyri
• On top of the temporal lobe
• Contains the Primary Auditory Cortex (A1)

Question 15

Corpus Callosum

Answer 15

• “The Great Cerebral Commissure”
• Connects the cortex of both hemispheres
• Divided into 4 parts:
  
  • Rostrum
  • Genu
  • Body
  • Splenium

Question 16

Anterior Commissure

Answer 16

• Communication of the cortex of the anterior temporal lobes