Structures of the diencephalon, left sagittal view.

intermediate mass of the thalamus

Third ventricle

-center of diencephalon
-contains CSF

Choroid plexus

-vascular tissue in roof of third ventricle
-secretes cerebrospinal fluid

Interventricular foramen

optic chiasm

-point at which optic nerve fibers cross in the brain

hypothalamus

-regulates appetite, thirst, and body temp.
-regulates pituitary gland

Pituitary gland

Thalamus

relays sensory info to correct region of cerebrum

Mammillary body

controls eating and swallowing reflexes

Pineal gland

secretes melatonin, regulates circadian rhythms