!!!! Flexures & Embryonic Vesicles

Question 1

Three flexures

Answer 1

1. Cephalic flexure
2. Pontine flexure (gives rise to 4th ventricle)
3. Cervical flexure (spinal cord - medulla)

Question 2

3 Vesicle Stage Vesicles

Answer 2

1. Prosencephalon
2. Mesencephalon
3. Rhombencephalon

Question 3

5 Stage Vesicles

Answer 3

1. Telencephalon
2. Diencephalon
3. Mesencephalon
4. Metencephalon
5. Myelencephalon

Question 4

3 stage to 5 stage vesicles

Answer 4

1. Prosencephalon
   
   1. Telencephalon
   2. Diencephalon
2. Mesencephalon
   
   1. Mesencephalon
3. Rhombencephalon
   
   1. Metencephalon
   2. Myelencephalon

Question 5

Telencephalon

Answer 5

• Derived from prosencephalon
• Brain as we know it, including lateral ventricles

Question 6

Diencephalon

Answer 6

• Derived from prosencephalon
• Thalamus, hypothalamus, epithalamus, 3rd ventricle

Question 7

Mesencephalon

Answer 7

• Derived from 3 vesicle mesencephalon
• Midbrain, cerebral aqueduct

Question 8

Metencephalon

Answer 8

• Derived from rhombencephalon
• Pons, cerebellum, 4th ventricle

Question 9

Myelencephalon

Answer 9

• Derived from rhombencephalon
• Medull, 4th ventricle

Question 10

Modern Adult Rhomebencephalon

Answer 10

Pons, medulla, cerebellum