Topography

Question 1

List the components of the brain

Answer 1

Cerebral hemispheres
Diencephalon
Cerebellum
Brainstem;
- Midbrain
- Pons
- Medulla oblangata

Question 2

Describe the basic topography of the brain

Answer 2

Question 3

Regarding development
The neural tube develops from________

The _______ of the tube forms _________ each of which develops into different parts of the brain

Answer 3

The neural tube develops from the (dorsal) surface ectoderm

The cranial end of the tube forms vesicles each of which develops into different parts of the brain

Question 4

Describe the embryological development of the brain

Answer 4

Question 5

Describe the development of Vesicle formation

Answer 5

• As soon as the neural tube was formed, it divided into 3 primary vesicles. (Week 4) and then into 5 secondary vesicles (week 5)
  
  • These develop into the adult brain

Question 6

Describe the Brainstem

Answer 6

• Cranial nerves III – XII, tracts from spinal cord, vital centres for eg: cardiorespiratory centre

• Composed of Midbrain Pons and Medulla

Question 7

Whats the function of the brain stem?

Answer 7

• Pathway for fibre tracts running between higher and lower centres
• Brainstem nucleii are involved with 10/12 cranial nerves, so innervation of head & neck
  
  • Brainstem centers produce the rigidly programmed automatic behaviours essential for survival

Question 8

Describe the Medula (oblongata)

Answer 8

Question 9

Describe the Caudal and Cranial part of the medulla section

Answer 9

Question 10

Describe the Pons

Answer 10

Question 11

Describe Pons Section

Answer 11

Question 12

Describe the Midbrain

Answer 12

Question 13

Describe the Midbrain section

Answer 13

Question 14

Describe the cerebellum

Answer 14

Question 15

Describe the cerebellum functions

Answer 15

Question 16

Describe the Diencephalon

Answer 16

Question 17

Describe the thalamus

Answer 17

Question 18

Describe the Hypothalamus

Answer 18

Question 19

Whats the Homeostatic Role of Hypothalamus

Answer 19

Question 20

Describe the blood supply of the brain

Answer 20

Question 21

Describe the Circle of Willis and its role in cerebral arterial supply

Answer 21

Question 22

What does the Circle of Villis look like?

Answer 22

Question 23

How does the circle of willis look like on a real cadaver

Answer 23

Question 24

Describe the Cerebral Blood Supply

Answer 24

Question 25

Describe the venous drainage of the brain

Answer 25

Question 26

Describe the location of the sinuses

Answer 26

Question 27

Describe the Cavernous Sinus

Answer 27

Question 28

To summarise….

Answer 28