Getting Started 1. What are the TWO main jobs of muscles? 2. What is homeostasis?

Slides:

Advertisements

Similar presentations

T HE N ERVOUS S YSTEM The Communication System. T HE N ERVOUS S YSTEM FUNCTION Function: to communicate conditions within the body and the surrounding.

Advertisements

How and why do organisms respond to changes in their environment? Can you list what is required for a coordinated response? What makes up the CNS? Can.

8 th Grade Information Processing. Question: How do your feet know when to move when you want to walk?

Nervous System.

The Nervous System *.

Chapter 31 The Nervous System

What is the function of the Nervous System?. The nervous system is made of structures that control the actions and reactions of the body in response to.

29.2 Nervous System and Neurons

Nervous System The Neuron is the basic unit of the nervous system. Commonly referred to as a “nerve.” **Nucleus **Cell body **Schwann cells **Nodes of.

Nervous System.

Class Notes for the Nervous System - Section 1. Two Systems Within a System Peripheral Nervous System: PNS All the parts of the nervous system, except.

Stimuli and Response-Notes

Function of the Nervous System To conduct electrical impulses that allow cells, tissues and organs to detect and respond to stimuli. #1.

The Nervous System Ch. 35.

The Nervous System.

Body Regulation Nervous and Endocrine Systems. UNIT 6: PHYSIOLOGY Chapter 29: Nervous and Endocrine Systems I. How Organ Systems Communicate (29.1) A.

STARTER #3 1.Label the cavities to the right a. b. c. d. 2.What type of tissue is this? 1.What type of tissue lines organs and cavities?

The Nervous System.

Nervous System.  1. Function – Receives and sends out info from and to the outside and inside your body.

Movie: Nervous System (27:00min)

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

The Nervous System. Functions of the Nervous System the center of all thought, learning and memory.

Nervous System & Senses. Neuron A neuron is the basic unit of the Nervous System. Carry messages in the form of electrical impulses.

The Human Body The Nervous System

Main Function: This communication system controls and coordinates functions throughout the body and responds to internal and external stimuli. Our nervous.

$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. Essential Question  How does the nervous system promote homeostasis in the body.

The Nervous System Chapter 6

Functional Organization of Nervous Tissue Chapter 11

The Nervous System Vocabulary Review.

The Nervous System.

A system that controls all of the activities of the body. The nervous system is made of: The brainThe spinal cord The nervesThe senses.

The Nervous System.

Nervous System. Structures  Brain, spinal cord, peripheral nerves Function  Recognizes and coordinates the body’s response to changes in its internal.

Our electrochemical controls

NERVOUS SYSTEM Its function is to control and co-ordinate the parts of the body.

The Nervous System. What is regulation?  The control and coordination of all bodily activities.

 Elaborate communication system that contains more than 100 billion nerve cells in the brain alone  Control the actions of the body  Makes adjustments.

Nervous System Ch. 49.

The Nervous System Easy on, Easy off… Feb 17, 2016.

The Nervous System By: Kevin Caro and Joyce Perez.

Regents Biology The Nervous System: Overview  The Nervous System controls and coordinates all the functions of the body.  The Nervous System.

3 kinds of neurons: Sensory, Interneuron, and Motor neurons. Explain what each neuron does:  Sensory neurons --- picks up stimuli from the environment.

Nervous System Axons Take information away from the cell body Dendrites Bring information to the cell body.

Human Physiology: The Nervous System PPT #2 chapter 29 in text.

Chapter 24 Regulation. Why do you respond to changes around you? Your responses are controlled by your nervous and endocrine system. Together these 2.

THE NERVOUS SYSTEM. Senses  In order for humans to survive, their bodies must constantly monitor the environment  Sense organs interact with the nervous.

The Nervous System Nervous Regulation – Allows you to respond to changes (STIMULI) in the environment (MAINTAIN HOMEOSTASIS)

1. What are your 5 senses? 2. Give an example of a stimulus for each one of your senses. (stimulus = something you can sense) Example: Hearing  Listening.

Ch. 31.  collects information about the body’s internal and external environment  processes and responds  Messages allow organs to act together and.

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.

29.2 Neurons Set up Cornell Notes on pg. 39 Topic: 29.2 Nervous System and Neurons Essential Question(s): 1.Draw and label a neuron on pg. 38 in picture.

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. Meet Your Nervous System You have about 150 billion brain cells Your brain is about 2% of your body’s weight, but it uses about 20% of.

Chapter 21 Control and Coordination. Section 1- The Nervous System Homeostasis –The regulation of steady, life-maintaining conditions inside an organism,

Control and Coordination

THE NERVOUS SYSTEM.

Communicates Regulates Remembers

Nervous System In Class Notes.

Nervous System.

Nervous System and Neurones

The Nervous System.

The Nervous System 18.1.

The Nervous System.

The Nervous System V Review

Nervous system.

The Nervous System.

THE NERVOUS SYSTEM pp

Presentation transcript:

Getting Started 1. What are the TWO main jobs of muscles? 2. What is homeostasis?

Vocab For This Week Auditory- having to do with sound Bile- a secretion made by the liver that helps in digestions Gall Bladder-an organ used to hold extra bile from the liver Motor- having to do with movement Olfactory- having to do with smell Secretion- a chemical (often liquid) that is made and released

Nervous System Daily Objective: How do your reflexes work?

Nervous System

Purposes

Communication Control Regulation

Classifications Central Nervous System – Brain & spinal cord – Functions to receive and interpret messages from the PNS and relays action/reaction back through the PNS – “Processing center” Peripheral Nervous System – Nerves that leave brain & spinal cord that travel to parts of the body – Functions to send messages from sensory receptors to the CNS Motor and sensory Transmits nerve impulses

Neurons

Parts of a Neuron Cell body- acts as a ‘factory’ for the rest of the cell by producing energy and other essential molecules Dendrite-receives information from the environment in the form of chemical signals Axon- receives chemical signals from the dendrites, converts these signals to electrical impulses, and transmits the electrical impulses to the synaptic terminal Synaptic terminal- receives electrical impulses from the axon, converts this to a chemical signal, and releases neurotransmitters to the outside of the cell Myelin Sheath- helps nerve impulses take place in a fast and accurate manner

How do Neurons send messages?

Why do we have reflexes?

How Our Reflexes Work Afferent or sensory neurons receive information from outside the body using sensory receptors and sends them to other neurons to produce a response Efferent or motor neurons receive information from other neurons and sends information to effectors (muscles, glands) which produce a response

Ex) Touching Something Hot

Reflex Arc Interneuron Receptors in skin Afferent neuron (to the brain) Efferent neuron (from the brain) Effector (muscle)

Getting Started 1. Which statement best describes how the nervous system helps a person react quickly after stepping on something sharp? A Electrical impulses are created by the muscles to move the foot away. B Each skin cell has pain receptors that directly cause muscle movement in the foot. C The muscles conduct pain impulses to the brain, which directs nerves to pull the foot away. D Signals travel on nerves to the spinal cord, which causes a reflex that pulls the foot away. 2. What is this a picture of?

Sense Organs Daily Objective: How do you see, smell, hear, and taste?

Sense Organs

Sensory Receptors Thermoreceptors: sense heat or cold (one type for each sensation) Photoreceptors: Sense light Mechanoreceptors: Sense pressure (many types and vary on level of sensitivity)

Touch

Pain

Smell

Taste

Hearing

Sight

Getting Started What is the purpose of a reflex? What is the classification (Central or peripheral) for the part of the nervous system that includes the brain and spinal cord?

Parts of the Brain Daily Objective: What are the different parts of your brain and what does each section do?

The Brain

Temporal long-term memory, object recognition, auditory information, speech center

Frontal critical thinking, ranking reactions, selecting appropriate responses

Occipital vision

Parietal process sensory info from body (skin) and spatial orientation (where things are around them).

Cerebellum takes in info on the position of body parts and coordinates body movement

Brain Stem reflexes, heart pumping, breathing, smooth muscle contractions

Spine conduct nerve impulses to and from brain, spinal reflexes

No Note Highlighting I am not going to test you on the parts of the brain-the notes are there just for you to have as reference However, we are going to use the information to help with out next activity

Brain Inquires

Remainder of Class First: All 8 Brain Injury Stations THEN: – Study Vocab Words for Quiz Friday

Vocab Quiz

Auditory, Bile, Gall Bladder, Motor, Olfactory, Secrete The nerves that sends messages to move your body are called _____ neurons. When an organ makes and releases a chemical, we say that it _________ the chemical. The __________ is an organ that stores a chemical that helps in digestion called ________. Your nose is filled with _________ receptors. When you listen to loud music, you can damage your __________ receptors.