Kate McAteer. Organization of Nervous Systems 48.1  Invertebrate nervous systems range in complexity from nerve nets to brains and nerve cords  Vertebrates.

Slides:

Advertisements

Similar presentations

Nervous System Outline

Advertisements

Neurological Control of Movement

By: Emma Friedman and Jearicamarie Dodge Period 3.

Neurons & Nervous Systems

Chapter 31 Notes The Nervous System. The Nervous System: is a rapid communication system using electrical signals. enables movement, perception, thought,

NOTES: CH 49 - NERVOUS SYSTEM ORGANIZATION; THE HUMAN BRAIN

What’s Next in Biology Class?. Optical Illusion 1 Optical Illusion 12.

NERVOUS 101 Kayla King Lauren Mills. Importance Sends messages throughout the body. –5 senses.

Study guide…part 1 What are the three types of neurons? What is the structure of a neuron? How does saltatory conduction change the speed of the impulse?

EDU2HBS Human Body Systems 1 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings The Nervous Systems.

The Nervous System Ch. 35.

AP Biology Nervous Systems Brain Development.

Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece.

Chapter The anatomy of a neuron. The mechanisms of impulse transmission in a neuron. The process that leads to release of neurotransmitter, and.

1. Contrast the functions of B cells and T cells. 2. What are memory cells? 3. How do vaccines work? 4. How does HIV affect the immune system?

Nervous System Ch. 49. Nervous System -Found in every part of the body from the head to the tips of the fingers and toes. -Divided into central nervous.

The Nervous System.

Neurons, Synapses and Signaling

Overview of Neurons, Synapses & Nervous System

Alex Wiemann. Function of Nervous System Coordinates actions and transmits signals between parts of a body.

THE NERVOUS SYSTEM Schaefer Hedgepeth. Divisions of the Nervous System Central Nervous System Peripheral Nervous System Somatic Nervous System Autonomic.

Essay Question #2 Scoring Guidelines:

The Nervous System. 2 Nervous System Organization All animals must be able to respond to environmental stimuli -Sensory receptors = Detect stimulus -Motor.

Vocabulary Review The Nervous System. Peripheral nervous system Cranial and spinal nerves outside the central nervous system Central nervous system Consists.

The Nervous System Chapter 48 and Section 49.2 Biology – Campbell Reece.

Nervous Systems Ch. 48 Ch. 48. Nervous System Central Nervous System.

CHAPTER 48  NEURONS, SYNAPSES, & SIGNALING 48.1  Neuron organization & Structure I. Intro to information processing A. Processing 1. Sensory input a.

Nervous system. Nervous system consists of the brain, spinal cord, and nerves. Nervous tissue consists of neurons; whereas the brain and spinal cord contain.

Membrane receptor types

Lecture #21Date ______ n Chapter 48 ~ Nervous System.

The Nervous System Neuron –Cell body; Dendrites; Axon Three general groups of neurons –Sensory neurons (afferent or receptor) Receive the initial stimulus.

LectureDate ______ Chapter 48 ~ Nervous System. Nervous systems Effector cells –muscle or gland cells Nerves –bundles of neurons wrapped in connective.

Chapter 48 ~ Nervous System. The Nervous System Neurons Glial cells Soma Axon Dendrite Synapse Neurotransmitters Action potential Motor neurons Interneurons.

Nervous Systems. Functions: 1. Sensory input 2. Integration 3. Motor output Nervous Systems.

Nervous systems n Effector cells~ muscle or gland cells n Nerves~ bundles of neurons wrapped in connective tissue n Central nervous system (CNS)~ brain.

Essential knowledge 3.E.2: Animals have nervous systems that detect external and internal signals, transmit and integrate information, and produce responses.

Nervous System Tayler Logue. The Nervous System  The master controlling and communicating system in the body Functions: o Sensory Input – monitoring.

THE NERVOUS SYSTEM By Jameson Meyer. CENTRAL NERVOUS SYSTEM  Definition  The complex of nerve tissues that controls the activities of the body. In vertebrates.

$100 $200 $300 $ $200 $300 $400 $500 Parts of a Neuron Org of NS Reflexes Action Potential Areas of the Brain 1 Areas of the Brain 2. Nervous System.

The Nervous System Chapter 11.

Functions of Nervous System: –Sensory Input-(from inside and outside of body) –Integration and regulation of body systems. –Motor output-(Muscles and glands)

Chapter 15/16 - The Nervous System: Organization.

NERVOUS SYSTEM.

Illinois State University Neurological Control of Movement Chapter 20 n Individual nerve fibers are called neurons. n A typical neuron is composed of three.

Nervous System Biology Ch. 42 Ms. Haut. Function of Nervous System Sensory Input – Signals received by sensory receptors in dermis of skin or internal.

Cells of the Nervous System Neurons – cells that send signals within the bodyNeurons – cells that send signals within the body Supporting cells: –Glial.

Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Ch 48 – Neurons, Synapses, and Signaling Neurons transfer information.

The Nervous System Vocabulary Review.

Cells of the Nervous System Neurons – cells that send signals within the bodyNeurons – cells that send signals within the body Supporting cells: –Glial.

Chapter The Nervous System The Central Nervous System (CNS)

I.Neuron Structure and Function II.Relationship between Stimuli  Input III.Nervous System Organization IV.Brains V.Preparation for next lecture Lecture.

Nervous System Ch. 49.

Synapses Information transmission occurs Narrow gap between a synaptic terminal of an axon and a signal receiving portion of a cell body Diffusion Electrical.

Nervous System Transmission of signals for communication and for coordination of body systems.

Ch. 9 Test Review Nervous System Central Nervous System Peripheral Nervous System.

1. 2 Sylvia S. Mader Concepts of Biology © Zanichelli editore, 2012 Sylvia S. Mader Immagini e concetti della biologia.

Sensory receptors are responsive to external and internal stimuli. Such sensory input is conveyed to integration centers where the sensory input is interpreted.

Click on a lesson name to select. Chapter 33 Nervous System Section 1: Structure of the Nervous System Section 2: Organization of the Nervous System.

Chapter 34 Opener Chapter 34: Neurons and The Nervous System.

Chapter 34 Integration and Control: Nervous System.

The Nervous System. Overall Function –COMMUNICATION –Works with the endocrine system in regulating body functioning, but the nervous system is specialized.

The Nervous System. Central Nervous System (CNS) – brain and spinal cord Peripheral Nervous System (PNS) – nerves that communicate to the rest of the.

Nervous System Chapter 48 and part of Nervous System Functions – Electrochemical communication – Regulation and coordination of body – Homeostasis.

WELCOME TO A&P UNIT 7  CNS = Central Nervous System  PNS = Peripheral Nervous System  Question: What is autonomic nervous system ( ANS)?

Chapter 48. Role of the Nervous System Sensory Input Integration Motor Output.

The Nervous System.

Neurons, Synapses, and Signaling

Chapters 48 & 49 Campbell Biology – 9th ed.

The Nervous System: Integration and Control

Chapter 48- The Nervous System

Presentation transcript:

Kate McAteer

Organization of Nervous Systems 48.1  Invertebrate nervous systems range in complexity from nerve nets to brains and nerve cords  Vertebrates have a central nervous system (brain and spinal cord) and a peripheral nervous system

Information Processing 48.1  PNS nerves transmit sensory and motor signals  CNS integrates information  Nervous systems process info in 3 stages:  Sensory Input  Integration  Motor output to effector cells

Neuron Structure 48.1  Dendrites  Axon  Variety of shapes

Ion Pumps and Ion Channels 48.2  Membrane potential  Resting potential  Nerve impulses

Hyper/De – Polarization + Action Potential 48.3  Hyperpolarization: increase in magnitude of membrane potential Vs.  Depolarization: decrease…  Action potential: brief ‘all or none’ depolarization of a neuron’s plasma membrane

Direct Synaptic Transmission 48.4  Neurotransmitter binds to gated ion channels in the postsynaptic membrane, producing an EPSP or IPSP  After release, neuro. is taken up by surrounding cells or is degraded by enzymes  Single neuron has many synapses on its dendrites and cell body

Indirect Synaptic Transmission 48.4  Binding of a neurotransmitter to some receptors activates signal transduction pathways, which produce slowly developing but long lasting effects in the postsynaptic cell

Neurotransmitters 48.4  Same neurotransmitter can produce different effects on different types of cells  Well known: acetylcholine, biogenic amines, various amino acids and peptides, some gases

PNS 48.5  Consists of paired cranial and spinal nerves and associated ganglia  Divided into somatic nervous system and autonomic nervous system (3 divisions: the sympathetic and parasympathetic divisions and enteric division)

Embryonic Development of Brain 48.5  Vertebrate brain develops from 3 regions:  Forebrain (most expansive growth)  Midbrain  Hindbrain

Brainstem + Cerebrum 48.5  Cerebrum:  Two hemispheres which are important in learning and planning  Brainstem:  Controls homeostatic functions such as breathing rate, sensory and motor signals, and regulates arousal and sleep  Medulla oblongata, Pons, Midbrain

Cerebellum + Diencephalon 48.5  Diencephalon:  Thalamus is main center  Hypothalamus maintains homeostasis and basic survival behaviors  Cerebellum:  Helps coordinate motor, perceptual, and cognitive functions  Involved in learning and remembering motor skills

Four Lobes 48.6  Frontal  Essential for understanding language  Temporal  Essential for understanding language  Occipital  Parietal

Diseases 48.7  Schizophrenia (hallucinations)  Depression (incl. bipolar disorder)  Alzheimer’s (senile plaques form in brain)  Parkinson’s (death of dopamine secreting neurons)

Sources k/biology/student/glossary/img/peripheral_nervous_system.jpg