true.
The Midbrain is the topmost part of the mesencephalon, and so damaging the mesencephalon could potentially harm the midbrain, but only if that is the part of the mesencephalon you damaged.
The midbrain
It is also called the mesencephalon
MESENCEPHALON gives rise to the mid brain and aqueduct of the midbrain
Midbrain also called the mesencephalon
midbrain (or mesencephalon), pons, and medulla oblongata
reticular activating system.
Mind Cerebrum Intellect Thinking Cap Gray Matter Noggin Noodle
midbrain
hindbrain
Prosencephalon = develops to Telencephalon and Diencephalon = Cerebral hemispheres and collectively Thalamus,Hypothalamus, eyes, pineal gland. Mesencephalon = Mesencephalon = Midbrain Rhombocephalon = Metencephalon and Myelencephalon = Pons & Cerebellum
Yes, Alligators do have a tegmentum it seems! albeit less developed than a human mesencephalon, the alligator midbrain (mesencephalon) has more developed optic tecta instead. However in invertebrates, the tegmentum is the floor of the midbrain. i discovered a report on alligators in lake griffin which specifically referred to the tegmentum. heres the link .. www.jwildlifedis.org/cgi/content/full/44/2/280