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

EpithalamusEpithalamus

Epithalamus

1-Habenular triangle and commisure

2- Pineal gland

3- Posterior commisure

4-Subcommisural organ

1-Habenular triangle and commisure

Smell reflex

Fasciculus retroflexus

Habenular commisure

2- Pineal gland

W= 120 mg

8 mm

stalk

Third eye

1

2

Three biogenic amine

1- Norepinephrine 2- Serotonin(5-HT/ 5-

hydroxytrptamine) 3- Melatonin

Brain sand

Posterior commisure

Posterior commisure nuclei

1- interestitial n. of post. commisure

2- interestitial n. of cajal

3- Darkschewitsch

4- rostral interestitial n. of MLF

MLF(medial longitudinal pathway)