PPT-SENSORY NERVOUS SYSTEM Dr. Ayisha Qureshi

Assistant Professor MBBS Mphil Stimulus amp Modalities A stimulus is a change detectable by the body Stimuli exist in a variety of energy forms or modalities such as heat light sound pressure and chemical changes. NERVOUS SYSTEM. NERVOUS SYSTEMS RECEIVE SENSORY INPUT, INTEPRET IT, AND SENT OUT APPROPRIATE COMMANDS. NERVOUS SYSTEMS. MOST INTRICATELY ORGANIZED DATA PROCESSING SYSTEM ON EARTH. NEURON. FUNCTIONAL UNIT; SPECIALIZED NERVE CELL FOR CARRYING SIGNALS FROM ONE LOCATION IN THE BODY TO ANOTHER. Central Nervous System (CNS). Brain and Spinal Cord. Peripheral Nervous System (PNS). All other nervous tissue throughout the body. Central Nervous System (CNS). Nerve Tissue:. White Matter or Gray Matter. Functions of the Nervous System. Sensory. . Neurons. =receptors. Detect changes inside and outside the body. Convert the information into nerve impulses which are sent to the Central Nervous System. . chapter 29 in text. Objectives and Questions:. 1. I can describe the functions of the nervous system. 2. . I can describe the parts of a neuron cell and identify how they transmit electrochemical impulses.. 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. The Nervous System Central Nervous System Peripheral Nervous System Procedure A starting person will be chosen and will be given an object. Once the teacher gives the signal, the start person will pass the object to their right. Chapter 6: The Nervous System. Our nervous system has the ability to simultaneously direct multiple functions taking place in in our bodies.. Two major divisions:. Central nervous system (CNS). . It directs the activity of the entire nervous system.. Prepared by I . Gede. . Purnawinadi. , . S.Kep. ., . M.Kes. .. Organization of the Nervous System. Central nervous system (CNS) . Brain. and . spinal cord. Integration . and command center . Peripheral nervous system (PNS). A. Central Nervous System (CNS). 1. . Functions . A) . Acts . as command center. B) . Interprets . sensory information and dictates response based on past experience, . reflexes, . and current body conditions. 1 2 CSFFormed at choroid plexuses in the ventriclesCushioning effectNormal: 10 mmHg in pressure, 1.002 1.009 in SG, 7.32 in pHncreased productiondecreased absorption, and/orobstruction of flow ofCSF a Human nervous system two major parts: central nervous system and peripheral nervous system. Nervous System Organization. Brain. Spinal cord. Central Nervous System. Nervous System Organization. All neurons outside the CNS. :. by. Assistant lecturers. . Sadiq Salam H. AL-Salih. Hassanain Mohammed Khadim. Kareem . Waheed. Mohammed. Hussein Khadim Hussein . Al-. Mustaqbal. University College. Department of Nursing. 2. Who makes it, has no need of it.. Who buys it, has no use for it. . Who uses it can neither see nor feel it. . What is it. ?. Coffin. What gets wetter and wetter the more it dries. ?. A Towel. What . 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. .