peripheral nervous system.pptx

cranial nerves
spinal nerves
functions of nervous system
somatic
autonomic
sensory nerve
motor nerve
receptor
effector

1. CNS = brain and spinal cord ~90% (90 Billion) of all neurons in body are in CNS PNS = Cranial nerves and spinal nerves, nerve plexuses & ganglia ~10% (10 Billion) of all neurons in body are in PNS

2. PNS is our link to the outside world Without it CNS is useless Proof: Sensory deprivation-> hallucination, illusion, and delusion

3. S ome S ay M arry M oney B ut M y B ro S ays B ig B rains M atter M ost O nly O ne O f T he T wo A thletes F elt V ery G ood, V ictorious A nd H ealthy EASY TO REMEMBER

4. I’m the longest I’m the shortest I’m the biggest and thickest

5. Reflex arc A reflex arc is the pathway of neural stimulation that occurs to translate a sensation into a physical reflexive response.

6. Eye- sensory receptor Leg muscles- effectors

7. Autonomic

8. Somatic