Anatomy & Physiology Nervous System.

Slides:



Advertisements
Similar presentations
Chapter 17 The Brain. CNS  Central Nervous System. Brain and Spinal cord – Interpretation, thought, autonomic nervous system PNS  Peripheral Nervous.
Advertisements

JAMES VALLEY VOCATIONAL TECHNICAL CENTER. Neuron: Nerve Cell n Basic structural unit nervous system n Consists of: –nucleus –nerve fibers /dentrites –axon.
The Meninges Dura mater - outermost layer Arachnoid mater - no blood vessels, in between layer (resembles a spider web) Pia mater -inner membrane, contains.
Nervous System Outline
Principles of Health Science There are two main divisions of the nervous system: The Central Nervous System The Peripheral Nervous System Divisions.
The Nervous System Lesson 1: An Overview. Upon completion of this lesson, students should be able to …  List the functions of the nervous system.  Identify.
Chapter 7:6 The Nervous System.
3.01 Remember the structures of the nervous system
The Nervous System. The Nervous System: Chief control system; voluntary or involuntary Responds to changes in/out of body 100 Billion cells throughout.
Chapter 9.  Central Nervous System (CNS)  Brain and spinal cord  Peripheral Nervous System (PNS) ◦ nerves.
What helps you remember your part in a play?
 600 mya = sponges have different tissues  550 mya = flatworm with “eyespots’  500 mya = first fish  360 mya = reptiles w/lower brains  65 mya =
The Nervous System Charles C. Cook, MD.
Central Nervous System. Mad Dog! Biology and Behaviour What behavioural and biological processes are occurring when faced with a danger such as seen.
The Human Brain. The Brain Is protected by the skull and three tough membranes known as meninges The spaces between the brain and the skull are filled.
The Meninges Dura mater - outermost layer Arachnoid mater - no blood vessels, in between layer (resembles a spider web) Pia mater -inner membrane, contains.
Chapter 8 Nervous System I
Table of Contents. Lessons 1. Nervous System Go Go 2. Diseases and Disorders Go Go.
The Brain.
The Brain Objective: List, identify and give functions of the major regions of the brain.
Homeostasis 3: The Central Nervous System And The Peripheral Nervous System The Central Nervous System And The Peripheral Nervous System.
Central Nervous System Divisions of the Brain –Brain Stem Mesencephalon (Midbrain): Processes visual and auditory info and reflexes triggered by these.
The Nervous System. To return to the chapter summary click escape or close this document. Human Nervous System.
The Brain. Divisions Cerebrum Diencephalon Brainstem Cerebellum.
The Central Nervous System Brain and Spinal Cord.
The Brain Spinal Cord – Mass of nerve tissue located in the vertebral canal – Extends from Medulla Oblongata to 2 nd lumbar vertebrae – Transmits electrical.
ELAINE N. MARIEB EIGHTH EDITION 7 Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings PowerPoint ® Lecture Slide Presentation by.
Nervous System. 6/3/2016Nervous System2 Functions Coordinates all of the activities of the body. Enables the body to respond and adapt to changes both.
The Brain Principles of Health Science. Name the main divisions of the Nervous System Identify the four main parts of the Neuron Investigate the parts.
 Is protected by the skull and three tough membranes known as meninges  The spaces between the brain and the skull are filled with cerebrospinal fluid,
CNS Anatomy of the Brain.
Nervous System Health Science Technology I Dr. Wood.
Nervous System Peripheral Nervous System AutonomicSympathaticParasympatheticSomatic NervesSensory NervesMotor Nerves Central Nervous System Nerves that.
BODY SYSTEMS REVIEW NERVOUS SYSTEM. Complex and highly organized Coordinates all of the many activities of the body Allows the body to respond and adapt.
The Nervous System Chapter 11.
Welcome to… Nervous System Central Nervous System Peripheral Nervous System Parasympathetic Somatic Nerves Autonomic Nerves Spinal Cord Brain MotorSensorySympathetic.
Nervous System Page 203. Nervous System Directs the functions of all human body systems 100 billion nerve cells Divided into two sections ▫Central Nervous.
Regulation  control and coordination of life functions and activities  2 systems involved: 1. nervous- electrical system, brain,spine and nerves found.
DIVISIONS OF THE NERVOUS SYSTEM  Central Nervous System: Control center of the body  Consists of the brain and spinal cord  Function: To relay messages,
Central Nervous System
Nervous System Use your gray matter!. Central Nervous System Communication and coordination system of the body Seat of intellect and reasoning Consists.
The Brain and Cranial Nerves Chapter 9c. The Brain –Introduction –Development of brain Embryology –Anatomy of brain Parts and functions.
End Show Slide 1 of 37 Biology Mr. Karns Brain. End Show Slide 2 of Divisions of the Nervous System.
ANATOMY & PHYSIOLOGY/THE NERVOUS SYSTEM The Nervous System.
Anatomy & Physiology Nervous System. 2 main sections – Central Nervous System (CNS) – Peripheral Nervous System (PNS)
Central Nervous System. The Brain 2 hemispheres and 4 major portions one of the largest organs (3 lbs) contains approximately 100 billion neurons made.
Nervous System Ch. 49.
The Brain. The Meninges (D.A.P.) Dura mater - outermost layer (tough mother) Arachnoid mater - no blood vessels, in between layer (resembles a spider.
THE NERVOUS SYSTEM THE NERVOUS SYSTEM. THE NERVOUS SYSTEM The nervous system is the master controlling and communicating system of the body. The nervous.
Nervous System. Central Nervous System  Brain = mass of nerve tissue  Weigh about 3 lbs.  Reaches full about 6yrs. Old  3 – 5 min. supply of.
Central Nervous System (CNS). What is the function of the CNS? 1. Relay messages 2. Process information 3. Analyze information.
The Nervous System Health Science Technology. Journal: Fun Brain Facts How much does a human brain weigh? How about an elephant or rat brain? How much.
The Brain Parts & Functions.
Chapter 36 Animal Brain Organization and Function Chapter 36.
Brain: Parts and Functions
The Brain and The Nervous System. Brain Facts The brain weighs 3 pounds. The brain consumes 20-30% of the body’s energy. There are about 100 billion neurons.
Anatomy and Physiology
Nervous System HLTAP301A.
Copyright © 2004 by Thomson Delmar Learning. ALL RIGHTS RESERVED.
The Brain.
Chapter 7 The Brain.
The Brain.
New Table of Contents Take out a new sheet of paper
Mounting responses to changes in the environment.
The BRAIN and SPINAL CORD
Nervous System Use your gray matter!.
Nervous System.
The Nervous System.
Nervous System.
The Brain.
Presentation transcript:

Anatomy & Physiology Nervous System

Nervous System 2 main sections Central Nervous System (CNS) Peripheral Nervous System (PNS)

Central Nervous System Brain = mass of nerve tissue Weigh about 3 lbs. Reaches full size @ about 6yrs. Old 3 – 5 min. supply of oxygen for nerve cells Blood brain barrier = blood flowing is filtered; harmful chemicals cannot enter the brain

Spinal Cord Connected from medulla oblongata to lower back (lumbar) Vertebrae surround & protect spinal cord Responsible for carrying info to the brain & to body cells

Meninges 3 layer covering of the brain & spinal cord (protects) Dura matter Tough outer membrane Arachnoid membrane Web like middle layer Pia mater Inner layer; attached to brain Cerebrospinal fluid (CSF) = clear, watery liquid surrounding brain & spinal cord (cushions)

Sections of the Brain Cerebrum Largest section Separated into lobes Responsible for reasoning, thoughts, emotions, memory, speech, senses, movement

Cerebellum Located below the back of the cerebrum Responsible for muscle coordination, balance, posture, muscle tone

Diencephalon Hypothalamus Thalamus Regulates temp. appetite, water balance, sleep, & blood vessels Thalamus Directs sensory impulses

Brainstem Midbrain Pons Medulla oblongata Responsible for conducting eye & auditory reflexes Pons Responsible for certain reflexes (chewing, saliva) Assist with respirations Medulla oblongata Connects with spinal cord Responsible for regulating heartbeat, respirations, swallowing, coughing, & blood pressure

Peripheral Nervous System 2 types of systems Somatic Autonomic 12 pairs of cranial nerves (along with spinal nerves) Responsible for special senses

Autonomic Maintains a balance of involuntary functions Sympathetic / Parasympathetic maintains balance (homeostasis) Sympathetic – prepares the body for an emergency (increases heart rate, blood pressure) Parasympathetic – after an emergency (slows the body actions)

Structures of the Brain Corpus Callosum Large bundle of nerve fibers Connects L & R hemispheres Cerebellum Regulates balance, posture, movement, muscle coordination

Structures Spinal Cord Medulla Oblongata Connects to the medulla oblongata Medulla Oblongata Top portion of the spinal cord Controls automatic functions (heartbeat, breathing)

Structures Pons Pituitary gland Hypothalmus Connects cerebrum with cerebellum Pituitary gland Attach to the base of brain; secretes hormones Hypothalmus Regulates temp., appetite, sleep, blood vessels

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.