Microradiograph of eye; central optic pathways and related structures
Relations of optic pathways at base of brain.
In this specimen the left hemisphere has been removed and the upper part of the brain stem has been cut through in such a way that parts of the thalamus, the subthalamus, the hypothalamus and the internal capsule have been preserved in relation to the optic pathways. The anterior cerebral arteries and the anterior communicating artery are shown in situ.
Stratum zonale thalami
Lateral nucleus of thalamus
Internal cerebral veins
Medial nucleus of thalamus
Massa intermedia (cut through)
Subthalamic nucleus (cut across)
Septum pellucidum
Third ventricle (pointer on right hypothalamus)
Hypothalamus (cut through)
Anterior commissure (cut across)
Lamina terminalis
Corpus callosum
Anterior communicating artery
Optic nerve (II)
Superior frontal gyrus (on medial surface of right hemisphere)