Nervous System Nervous System The nervous system works based on electrical signals that stimulate the activities in muscles and glands. The Brain The brain is protected by…

DO NOW How does your body communicate with itself? What controls your bodyâs functions? The Nervous System Function Receive sensory input from inside and outside of the…

ANATOMY & PHYSIOLOGY Ch 12 & 13 Spinal Cord and Spinal Nerves * Spinal Cord This part of the central nervous system (CNS) is enclosed in the vertebral cavity It s…

The Nervous System Neurons The neuron is the functional unit of the nervous system. Humans have about 100 billion neurons in their brain alone! While all are different in…

Nerve cells (Neurons) Nerves & Reflexes! PNS: Somatic Nervous System __________ or _________ nerves which transmit impulses from the periphery or environment to the spinal…

PowerPoint Presentation How a Stimulus Elicits a Reflex Response REFLEXES Reacting to Changes Maintaining constant conditions inside your body. Yetâ¦big changes may be…