Question

Mid brain comprises of how many parts? Which are they?

Answer 1

The midbrain comprises the tectum, tegmentum, the cerebral aqueduct, and the cerebral peduncles, as well as several nuclei and fasciculi. Caudally the midbrain adjoins the metencephalon (afterbrain) (pons and cerebellum); while rostrally it adjoins the diencephalon (thalamus, hypothalamus, etc.)

Specifically, the midbrain consists of:

• tectum
  • inferior colliculi
  • superior colliculi
• cerebral peduncle
  • midbrain tegmentum
  • crus cerebri
  • substantia nigra