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

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein

Alright, i'm gonna try to explain this as good as possible. the law of conservation is like a collection overtime. it never changes though. no matter how you change the constituent parts.