1. Epithalamus

3. Epithalamus 1-Habenular triangle and commisure 2- Pineal gland
3- Posterior commisure
4-Subcommisural organ

4. 1-Habenular triangle and commisure

5. Smell reflex
Fasciculus retroflexus

6. Habenular commisure

7. 2- Pineal gland
8 mm
W= 120 mg

9. stalk

10. Third eye

11. 1 2

12. Three biogenic amine 1- Norepinephrine
2- Serotonin(5-HT/ 5-hydroxytrptamine)
3- Melatonin

14. Brain sand

15. Posterior commisure

16. Posterior commisure nuclei
1- interestitial n. of post. commisure
2- interestitial n. of cajal
3- Darkschewitsch
4- rostral interestitial n. of MLF

18. MLF
(medial longitudinal pathway)