Where do the cranial nerves originate? where do the spinal nerves originate?

NERVES CORE formed by combining the root of the ventral horns coming out of the front of the dorsal sensory root extending from the dorsal horn. Cranial Nerves - 12 pairs. They extend symmetrically through the opening at the skull base. These nerves innervate the head, except for 10 and 11 Every nerve may be sensory, motor or mixed.
Skully: visual, olfactory, oculomotor, trochlear, trigeminal abducens, facial, vestibulocochlear, glossopharyngeal wrong, sublingual 
Function: receiving stimuli are responsible for memory and intelligence, stimulating muscle contraction head and neck allowing movement of the head, eyes, and tongue, and change facial expressions 
 
Core: cervical, thoracic, lumbar, Cross, coccygeal 
These functions: 
- Receiving the stimuli from the skin, mostly on the trunk and extremities 
- Stimulate the contraction of the trunk muscles primarily and ends