3. Anatomy of the Medial (Midsagittal) Surface of the Brain In Situ

Question 1

Identify 1 - 2

Answer 1

1. Optic chiasm
2. Lamina terminalis

Question 2

Identify 8

Answer 2

8. Corpus callosum

Question 3

Identify 3 - 4

Answer 3

3. Anterior commissure
4. Thalamus

Question 4

Identify 5

Answer 4

5. Fornix

Question 5

Identify 6

Answer 5

6. Cingulate gyrus

Question 6

Identify 7

Answer 6

7. Paracentral lobule

Question 7

Identify 9 - 12

Answer 7

9. Cuneus
10. Calcarine cortex, upper bank
11. Calcarine sulcus (fissure)
12. Calcarine cortex, lower bank

Question 8

Identify 13

Answer 8

13. Pineal gland

Question 9

On a midsagittal view of the brain, the commissural bundles are visible

→ What are they? (3)

Answer 9

1. corpus callosum (8)
2. anterior commissure (3)
3. posterior commissure

Question 10

On a midsagittal view of the brain,

→ List the structure of brainstems

Answer 10

medulla, pons, midbrain

Question 11

the components of the ventricular system are visible here (reading only)

Answer 11

• third ventricle and the interventricular foramen of Monro
• opening into the more laterally located lateral ventricles
• the aqueduct
• the fourth ventricle
• the caudal openings into the subarachnoid space [foramina of Magendie and of Luschka]
• some of the subarachnoid cisterns [cisterna magna]).