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The Brain Stem the principle structures entering into the formation of the brain stem are the Medulla oblongata, Pons, Midbrain, Interbrain and Basal ganglia. The Mid-brain, Interbrain a Basal ganglia are parts of the cerebrum.

Elements of construction of Tool Machine The main framework of a machine, generally an iron casting, forms the fundamental of its construction and carries all the other components included in the design. In the case of the lathe, planer, boring machine and grinding machine, this casting is called the bed, whilst the main casting of the sha…