Thursday January 7 th, 2016 Bellwork- use a piece of paper which you can use for notes 1.What are the 2 components of the nervous system 2.This component of the nervous system contains all the nervous tissue outside the brain and spine 3.Component of the nervous system known as the command center (an organ) 4.The 2 parts of the PNS are known as 5.Define afferent receptor 6.Define efferent Wednesday January 6 th, 2016 Bellwork 1.CNS (central nervous system) and PNS (peripheral nervous system) 2.PNS 3.Brain 4.Afferent and Efferent/Autonomic and Somatic 5.Receives information and sends it to the CNS 6.Motor; carries information/actions to muscles and glands Wednesday January 6 th, 2016 Chapter 9 Bookwork due today by the end of conference If you werent here Monday the assignment is on the board. It will be due on FRIDAY Youll find the book on the class website Id rather have a life of oh wells than a life of what ifs. Happy National Bean Day The founder of match.com lost his girlfriend to a man she meet on match.com Nervous System Chapter 9 Connects all your body parts and transmits signals from one part to another Bodys master controlling and communicating system Nervous System Sensory Input Integration Motor Output Receives information Response to information Processes information Nervous System The brain is a part of the nervous system Nervous System Part 1 Division 1 Part 2 Division 2 Division 2.1 Division 2.2 Division Division Division Division Organization of the Nervous System The nervous system is divided into different divisions Major Divisions and Parts of the Nervous System Part 1 Part 2 Nervous System Division 2.1 Division 2.2 Division Division Division Division Central Nervous System Nervous System Peripheral Nervous System Central nervous system (CNS) Integrating and command center Peripheral nervous system (PNS) Carry signals to and from the CNS Divisions of the Nervous System Nervous System Central Peripheral Division 2.1 Division 2.2 Division Division Division Division Nervous System Central Nervous System Brain Spinal Cord Brain Functions as organizer and distributor of information for the body CNS: Brain Center of intellect, emotions, behavior, and memory Directs our behavior toward others. CNS: Brain Transmits signals to and from the brain Reflexes The spinal cord is protected by the vertebrae / vertebral column / backbone. CNS: Spinal Cord Brain Central SC Nervous System Peripheral Division Division Division Division Nervous System Peripheral Nervous System Afferent EfferentEfferent Also called Sensory Bring information to the CNS. PNS: Afferent Neuron SightSmell HearingTasteTaste Touch Receive information and send it to the brain - detect different types of stimuli inside your body (blood pressure/body temp) and outside your body (touch) Mechanoreceptors Chemoreceptors Electromagnetic receptors / Photoreceptors Thermoreceptors Pain receptors PNS: Afferent Neuron Also called Motor Carry commands to muscles and glands Get the eff out of here Spinal Nerves Cranial Nerves PNS: Efferent Neuron Nervous System Brain Central SC Peripheral AfferentAfferent Efferent Peripheral Spinal Cord 2. Efferent Division Nervous System Peripheral Nervous System Somatic Efferent Autonomic Also called Voluntary innervates skeletal muscles PNS: Somatic Nervous System Cranial nerve Ganglia outside CNS Spinal nerves Also called Involuntary innervates smooth muscles, cardiac muscles, and glands. PNS: Autonomic Nervous System Nervous System Brain Central SC Spinal Cord AfferentAfferent Peripheral Efferent Somatic Autonomic fight or flight dominates in times of stress Autonomic: Sympathetic Nervous System rest and digest Autonomic: Sympathetic Nervous System PARASYMPATHETIC DIVISIONSYMPATHETIC DIVISION Brain Constricts pupil Stimulates saliva production Constricts bronchi Slows heart Stimulates stomach, pancreas, and intestines Stimulates urination Promotes erection of genitals Spinal cord EyeEye Salivary glands Lung Heart Liver Stomach Adrenal gland Pancreas Intestines Bladder Genitals Dilates pupil Inhibits saliva production Relaxes bronchi Accelerates heart Stimulates epinephrine and norepi- nephrine release Stimulates glucose release Inhibits stomach, pancreas, a In n h d ib in it t s estines urination Promotes ejacu- lation and vaginal contractions Nervous System CNS Spinal Cord Peripheral Afferent EfferentEfferent Somatic Autonomic Sympathetic Parasympathetic Brain Nervous System CNS Brain Cere brum Cerebellum Brain StemSpinal Cord Peripheral Somatic Spinal Nerves Cranial Nerves Autonomic Sympathetic Parasympathetic