PPT-12 The Central Nervous System

P A R T D Spinal Cord CNS tissue is enclosed within the vertebral column from the foramen magnum to L 1 Provides twoway communication to and from the brain Protected by bone meninges and CSF. Functions of the Nervous System. Sensory input – gathering information. To monitor changes occurring inside and outside the body. Changes = stimuli. Integration. To process and interpret sensory input and decide if action is needed. Peripheral Nervous System. The Nervous System. Central Nervous System. The Nervous System. Central Nervous System. Central Core. Limbic System. Cerebrum. The Nervous System. Central Nervous System. Central Core. Brain. Spinal Cord. Nerves. Vocabulary to Know . Homeostasis. The regulation of steady, life-maintaining conditions inside an organism, despite changes in its environment . Nerve Cells . Neurons. Basic functioning units of the nervous system . 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. 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 1. Two main divisions. a. . Central Nervous System . (CNS) – consists of brain and spinal cord. b. . Peripheral Nervous System . (PNS) – includes nerves extending from . brain and . spinal . cord . DR. ZAHOOR ALI SHAIKH . LECTURE--- 1. 1. First We Will Discuss ‘ORGANIZATION & CELLS OF NERVOUS SYSTEM’ then we will talk about ‘Overview of Central nervous system’ [CNS]. 2. ORGANIZATION OF NERVOUS SYSTEM. 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. Deemah. . Dabbagh. Nervous system. Composed of:. Brain (CNS). Spinal cord (CNS). Nerves to body parts (PNS. ). Function:. Maintain . homeostatis. by detecting stimuli in the environment. Structure. (CNS) AND THE PERIPHERAL NERVOUS SYSTEM (PNS) Learning objectives: The nervous system in humans is a complex integration of organs like brain, spinal cord and sensory organs along with nerves. N 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. 85 to 180 billion neurons in the human brain?! How does anything get done?. CENTRAL NERVOUS SYSTEM. Brain and spinal cord.. PERIPHERAL NERVOUS SYSTEM (PNS). Def. : all nerves that lie outside the brain and spinal cord. AUTONOMIC NERVOUS SYSTEM. Two major subdivision. Parasympathetic . cranio. -sacral outflow. Sympathetic . . thoraco. -lumbar out flow. Responsible for the visceral control. Sometimes referred to as vegetative control. 3.02 Understand the functions and disorders of the nervous system. 3.02 Understand the functions and disorders of the nervous system. 2. 3.02 Essential Questions. What . are . the . functions . of the nervous system?.