Presentation on theme: "The Nervous System! Controls all other systems!!!."— Presentation transcript:
The Nervous System! Controls all other systems!!!
Main Function of the Nervous System To receive stimuli from inside and outside of the body, to interpret the stimuli, and initiate responses for survival.
Division of the Nervous System Central Nervous System (CNS) – Brain – Spinal Cord Peripheral Nervous System (PNS) – Peripheral nerves – Somatic and Autonomic Systems
Central Nervous System (CNS) Organ functions – Brain: coordinates all of the body’s activities – Spinal cord: connects the brain to the peripheral nerves Jellyfish have no brain! Human Sheep Cat
The Brain Cerebrum: Controls thoughts, voluntary actions, and sensations related to five senses. Cerebellum: Coordinates *voluntary muscle* movements and balance. Brain stem: Located at the base of the brain and controls vital and *involuntary* processes (ex’s: breathing, heart beat, and digestion) Fun fact: It weighs about 3 lbs