I.A.3 Back: Spinal Cord, Meninges, CSF, Typical Spinal Nerve

I.A.3 Back: Spinal Cord, Meninges, CSF, Typical Spinal Nerve: Page 4 of 4

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	Step 9: Add the spinal ganglions.
	Step 10: With the drawings as a guide, use the Draw tool, to identify the components of the sensory nervous system using the Draw tool. Please note that these drawings were taken from your neuroanatomy book. Neurologists use the terms Ventral and Dorsal. These are embryologic terms, but mean the same: Anterior=Ventral and Posteror=Dorsal. Ventral horn Dorsal horn Ventral root Dorsal root Dorsal root ganglia
	Step 11: Discuss the relationship of the motor and sympathetic nerves within the thoracic spinal nerves.

Note that somatic efferent nerves have no ganglion involvement. However, sympathetic efferents involve a ganglion and therefore have pre and post ganglionic components.

You will learn more about the significance of this in your neuroanatomy course.