Multipolar cells of type I. are occasionally spherical or pyramidal in shape, but are usually stellate or polygonal with groups of dendrites passing off from the various angles (Fig. 11).
The point of origin of the axon is marked by a small elevation consisting of clear protoplasm free from pigment or tigroid bodies; this elevation is known as the implantation cone. These cells are the cell bodies of motor neurons, so that the axon is in all cases relatively long.
The cells of type II differ only in the relative length of the axon; in them the axon is short and soon breaks up into branches (Fig. 13).
Human nervous system
The Animal Cell
Nerve Cells and Nerve Fibres
Nature of the Nerve Impulse
Specific Energy of Nerves
General Construction and Development of the Nervous System
The Spinal Cord
The Chief Fibre Systems of the Cerebro-Spinal Axis
The Areas of Localisation on the Cerebral Cortex
The Sense Organs
Human Brain Anatomy
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