EXPORT CITATION

Chapter-64 Brainstem

BOOK TITLE: Essentials of Anatomy for Dental Students

Author
1. Selvakumari TL
ISBN
9789352703548
DOI
10.5005/jp/books/14250_65
Edition
1/e
Publishing Year
2018
Pages
13
Author Affiliations
1. Sri Venkateswara Dental College and Hospital, Thalambur, Chennai, Tamil Nadu, India
Chapter keywords
Brainstem, midbrain, pons, medulla oblongata, neural tube, cerebellum, hindbrain, cranial nerves, white matter, inner gray matter

Abstract

The components of brainstem are midbrain, pons and medulla oblongata. They have the nuclei for attachment of cranial nerves. Midbrain or mesencephalon develops from the middle brain vesicle of cranial part of neural tube. It has outer white matter and inner gray matter. The cavity of midbrain, the aqueduct of Sylvius or cerebral aqueduct is present within the central gray matter. It communicates superiorly with third ventricle and inferiorly with fourth ventricle. Pons is one of the components of hindbrain or rhombencephalon. It is one of the two derivatives from metencephalon part of neural tube. It is a part of brainstem that has nuclei of fifth, sixth, seventh and eighth cranial nerves. Pons is located in the posterior cranial fossa, present over the clivus. Medulla oblongata develops from myelencephalon part of neural tube. Medulla oblongata, pons and cerebellum constitute the hindbrain.

© 2019 Jaypee Brothers Medical Publishers (P) LTD.   |   All Rights Reserved