ENCEPHALON
The encephalon along with the spinal cord are the two main parts of the Central Nervous System. It includes the brainstem and the prosencephalon.
Brainstem: it is the area at the base of the brain that lies between the deep structures of the cerebral hemispheres and the cervical spinal cord.
Prosencephalon: the part of the brain developed from the anterior of the three primary brain vesicles.
Encephalon
The prosencephalon itself embraces the telencephalon (brain) and the diencephalon.
Telencephalon or cerebrum: the anterior subdivision of the embryonic forebrain or the corresponding part of the adult forebrain that includes the cerebral hemispheres and associated structures.
Diencephalon: the posterior subdivision of the forebrain.
Prosencephalon (red coloured)
The brainstem consists of three parts: the mesencephalon, pons and medulla oblongata.
Mesencephalon or midbrain: the part of the brain developed from the middle of the three primary vesicles of the embryonic neural tube, comprising the tectum and the cerebral peduncles.
Pons: that part of the central nervous system lying between the medulla oblongata and the midbrain, ventral to the cerebellum.
Medulla Oblongata: located in the brainstem, anterior to the cerebellum, it is a cone-shaped neuronal mass in the hindbrain, controlling a number of autonomic functions.
Brainstem
References:
Fundamentos de Biofísica, José P. Young, MS, PhD
http://www.britannica.com/EBchecked/topic/77391/brainstem
http://www.healthline.com/human-body-maps/
http://medical-dictionary.thefreedictionary.com/
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