PPT-The cells of the nervous system and neurotransmitters at synapses

Key Area 4 Learning Intentions Describe the structures and functions neurons Name the different types of neurons D escribe the structure and function of the myelin sheath Explain how nerve impulses are transmitted between neurons. Nervous tissue is divided anatomically into . the . central nervous system (CNS), . which includes the brain and spinal cord, . and the . peripheral nervous system (PNS), . which includes the nerves outside the CNS and their. Structure and Function. 2. Input. (sensation). Output. (action). In order to understand behavior, we must understand the operating mechanism of the nervous system. What is the function of the nervous system?. A.  Neurons = masses of nerve cells that transmit information. 1. . Cell Body. - contains the nucleus and two extensions . 2. . Dendrites. – shorter, more numerous, receive information . 3. . Axons. Neurons . do. not . undergo mitosis!. The . Nervous System can transmit impulses as fast as 100 meters per . second!. If . we lined up all the neurons in our body it would be around 600 miles . long!. What a lot of nerve!. There are about 100,000,000,000 neurons in an adult human.. These form 10,000,000,000,000 synapses, or connections. They represent 2. % . of the body’s weight. , 0.04-0.07% . cells and . Nervous system. Dr. . Makarchuk. . Iryna. The nervous system enables the body to respond to continuous changes in its external and internal environment. It controls and integrates the functional activities of the organs and organ systems. . Ms. . Carmelitano. Introduction. Neurons are the building blocks of behavior. The 10 to 100 billion neurons make about 13 trillion connections with each other over the synapses. Essential Question: How do messages cross the synapses?. Section 1 – Functions & Divisions of the Nervous System (pp. 386-387). This is your brain…. The Nervous System. And this is your brain – IN ANATOMY!!. Or better yet…. The Nervous System. Functions of the Nervous System. The Nervous System: Communication. Neurons are masses of nerve cells that transmit information. Three main components:. (1) Cell Body – contains the nucleus and two extensions. (2) Dendrites – shorter, more numerous, receive information. Nervous System Nervous System Design 2 main section C entral N ervous S ystem P eripheral N ervous System   C entral N ervous S ystem  (CNS) brain and spinal cord.  encased in skull and vertebral column to protect Study Questions. 1. The specialty in psychology that studies the interaction of biology, behavior, and mental processes is:. Biopsychology. _.. 2. At the moment of conception, a male child receives: ___ chromosomes from his mother and ____ from his father.. Blueprint. 4.1. 4 . THE BRAIN AND NERVOUS SYSTEM. Communication in the Nervous . System. 4.2. Mapping the . Brain. 4.3. PSYCHOLOGY. , Twelfth Edition . | . Carole Wade • Carol Tavris. Copyright . Nervous System Lecture Objectives. Describe the anatomical and functional organization of the nervous system.. Describe the histologic features of neurons, their processes, and synapses.. Describe the histologic features and functions of glial cells.. http://i.livescience.com/images/i/000/024/292/iFF/neurons-120208.jpg?1328727600. What is the nervous system?. The nervous system is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body. It is essentially the body’s electrical wiring. .