ANP 1105 Lecture Notes - Lecture 2: Axon Hillock, Axon Terminal, Resting Potential
9 Dec 2016
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Document Summary
The nervous system is the master control and contains 100 trillion synapses (electrical and chemical). The human brain has 1 trillion cells, 86-100 billion neurons, and 900 billion glial cells. Main components are the brain, spinal cord, and nerves, which regulates and controls body functions. Two major type cells are neurons and supporting cells. Sensory input: the gathered information from sensory receptors used to monitor changes occurring . Integration: when the nervous system processes and interprets sensory input and decides what should be done at each moment. Motor output: the activation of effector organs, muscles and glands, to cause a response. Consists of the brain and spinal cord. Integrating and control center of the nervous system. Interprets sensory input and dictates motor output based on reflexes, current conditions, and past experiences. Consists mainly of nerves (bundles of axons) that extend from the brain and spinal cord.
