Integrated Science M2 The Nervous System

Module 2 Module 2 Unit 6 Unit 6 Lesson 1 Lesson 1

Integrated ScienceIntegrated Science

OBJECTIVESOBJECTIVES

Divisions of The Nervous System


Receptors/ Effectors Receptors/ Effectors

Career FocusCareer Focus

Systems for Sensing and Coordinating


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INTRODUCTIONINTRODUCTION

INTRODUCTION

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The information and activities in this slide presentation relate to:Module 2: Unit 6 - Sense Organs and Coordination: Lesson 1 – The Nervous System: Receptors and Effectors

You can access various subtopics in the Menu on the LEFT of the slide.








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OBJECTIVES

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On completing this slide presentation, you should be able to: show understanding of the inter-related roles of the nervous system and endocrine system in sensing the environment and coordinating our responses.research information and share ideas.describe the human nervous system.define the terms receptors and effectors and differentiate between their main roles.identify the types of neurones and their functions.








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1. Systems for Sensing & Coordinating

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Our nervous system and endocrine system work together. Their role is coordination of the specific responses needed to ensure homeostasis.

Co-ordination involves the interpretation of stimuli and the adjustment of an animal’s response to changes in the environment, done by linking of various complex processes in the body so as to ensure homeostasis which enables us to survive.

The diagrams on the next slide show both systems.








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1. Systems for Sensing & CoordinatingActivity 1 . 1 - Sys te m s fo r Se ns ing a nd Co o rd ina ting

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1. Click open this website and examine the two illustrations to compare the main parts of the endocrine and nervous systems > http://www.emc.maricopa.edu/faculty/farabee/biobk/nervendo.gif

2. Go through the video from this next website > http://www.youtube.com/watch?v=R218fFZhq4c&feature=related

3. Make a table to list and compare the two systems.

Feedback : Click and read the table at >

http://tracker.moodle.org/secure/attachmentzip/unzip/22817/13295%5B21%5D/CMD_2360881_M/my_files/content/mod1/m1_topic1/m1_t1_endocrine2.htm

NEXT QUESTIONNEXT QUESTIONNEXT QUESTIONNEXT QUESTION

CHECKCHECK

http://www.emc.maricopa.edu/faculty/farabee/biobk/nervendo.gif

http://www.youtube.com/watch?v=R218fFZhq4c&feature=related

http://tracker.moodle.org/secure/attachmentzip/unzip/22817/13295%5B21%5D/CMD_2360881_M/my_files/content/mod1/m1_topic1/m1_t1_endocrine2.htm








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1. Systems for Sensing and Coordinating

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Look at the parts that comprise each system.








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1. Systems for Sensing & Coordinating

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These two systems continuously send and receive instructions that enable us to detect changes in our internal and external environment, then make an appropriate response.

The response could be muscle movement or secretions from endocrine and other types of glands. The nervous system generally coordinates rapid responses to external stimuli perceived by sense organs.The endocrine system coordinates slower, longer-lasting responses to internal stimuli.Together, they monitor internal or external changes.








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2. Divisions of the Nervous System Thre e func tio ns o f the Ne rvo us Sys te m

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2. Divisions of the Nervous System

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The nervous system is able to carry out its functions because it has many inter-related parts. The diagram shows the two main divisions of the nervous system; they are listed in the flow chart.

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2. Divisions of the Nervous SystemActivity 2 . 1 – The c o m p o ne nts o f the Ne rvo us Sys te m

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1. Watch the video at : http://www.onlinemathlearning.com/central-nervous-system.html

2. Examine the diagram at this website: http://en.wikipedia.org/wiki/File:Nervous_system_diagram.png

3. Answer questions 1 and 2 on the next slide.

http://www.onlinemathlearning.com/central-nervous-system.html

http://encyclopedia.lubopitko-bg.com/Nervous_System.html








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2. Divisions of the Nervous SystemActivity 2 . 1 – The c o m p o ne nts o f the Ne rvo us Sys te m

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Question 1. What are the two major branches of the human nervous system?

Question 2. What are the components of each?

CHECK

The Nervous System consists of the: CCentral NNervous SSystem (CNS) and the PPeripheral NNervous SSystem (PNS).

The components of the CNS are Brain , spinal cord; The components of the PNS are all *neurones, cranial nerves, spinal nerves and sense organs. *NOTE: Spelling is either ‘neurone’ or ‘neuron’. Use only one form!








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2. Divisions of the Nervous SystemFeedback to Ac tiv ity 2 . 1 – The c o m p o ne nts o f the Ne rvo us Sy s te m

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Question 3a)What are the two major branches of the human nervous system? b)What are the components of each?

The Nervous System consists of the: CCentral NNervous SSystem (CNS) and the PPeripheral NNervous SSystem (PNS).

The components of the CNS are Brain , spinal cord; The components of the PNS are all *neurones, cranial nerves , spinal nerves and sense organs.

*NOTE: Spelling is either ‘neurone’ or ‘neuron’. Use only one form!








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3. Receptors and EffectorsWha t a re Re c e p to rs ?

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Receptors enable us to detect stimuli or changes in our internal and external environment, so that we can produce a response .

Listen to this video starting from 2.15 – 3.39 from - http://www.youtube.com/watch?v=-MK2ZleBDEQ

Carefully examine/read the next slide which shows sense organs and the stimuli that the receptors in each sense organ are able to detect.

http://www.youtube.com/watch?v=-MK2ZleBDEQ








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3. Receptors and EffectorsActiv ity 3 . 1 - Wha t a re Re c e p to rs ?

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1. Identify the types of receptors. 2. State what a receptor does. Write it in your notebook.

Hearing

Seeing

Smelling

Tasting

Feeling

Balancing

CHECK








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3. Receptors and EffectorsFeedback to Ac tiv ity 3 . 1 - Wha t a re Re c e p to rs ?

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Questions1. Identify the types of receptors. 2. State what a receptor does. In your answer, you should include the following points: The types of receptors shown in slide 12 are those which

detect the stimuli as follows: Skin = touch/pressure/pain and temperature; Eye = light; Ear = sound and balance (space orientation); Tongue and Nose - chemical.

A receptor contains special sensory cells and/or sensory nerve fibres which will detect and change stimuli into an electrochemical messages called a nerve impulses.

Now watch this video clip from -http://www.youtube.com/watch?v=RUHGI8IixU0&feature=relmfu

http://www.youtube.com/watch?v=RUHGI8IixU0&feature=relmfu








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3. Receptors and EffectorsActiv ity 3 . 2 - Wha t a re Effe c to rs ?

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Discuss the diagrams on this and the next slide with your teacher, then list examples of the effectors and the response/s which each produces.

Three types of muscles that are effectors.








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3. Receptors and EffectorsActiv ity 3 . 2 - Two typ e s o f g la nds tha t a re e ffe c to rs

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3. Receptors and EffectorsFeedback to Ac tiv ity 3 . 2 - Wha t a re Effe c to rs ?

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The table should include the following information:Effectors are usually a muscle or a gland which produces relevant changes in the body called a response; Muscles cause movement.a.Skeletal: Response = movement of skeletonb.Cardiac: Response = beating/pumping action of the heart, which is really contraction and relaxation of the cardiac muscle.c.Smooth: response = cause churning movements of the stomachGlands will produce and secrete chemical substancesa. Endocrine glands: Response = hormonesb. Exocrine glands: Response = e.g. sweat

Ac tiv ity 3 . 2

Ac tiv ity 3 . 2








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Career Focus - Neurologist19

Do on-line internet or book research to find out how she has used her knowledge and training to assist people suffering with neurological problems.

Research Topic – Who is Jamaican Dr. Michele Lee?

Visit the link for information about this “certified neurologist and pain/headache specialist, the only female of her kind in Jamaica”. http://jamaica-gleaner.com/gleaner/20070812/out/out1.html

http://jamaica-gleaner.com/gleaner/20070812/out/out1.html










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Career Focus

“An anesthesiologist is a medical doctor (M.D.) who is trained in administering anesthesia, which works on the nervous system to prevent the sensation of pain.

A neurologist is a medical doctor (M.D.) who has completed specialized training in internal medicine and neurology.

A neurosurgeon is a medical doctor (M.D.) who has completed specialized training in surgery of the nervous system.

A neuropathologist is a medical doctor (M.D.) with subspecialty training in the microscopic examination of nervous system and muscle tissue.

A chiropractor is a health care professional trained to provide medical care for disorders of the musculoskeletal system and the nervous system.”

Source >> http://wiki.medpedia.com/Nervous_system

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http://wiki.medpedia.com/Anesthesiologist

http://wiki.medpedia.com/Neurologist

http://wiki.medpedia.com/Neurosurgeon

http://wiki.medpedia.com/Neuropathologist

http://wiki.medpedia.com/Chiropractice?action=edit&redlink=1

http://wiki.medpedia.com/Nervous_system








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SUMMARY

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Click and watch the tutorial at:http://www.youtube.com/watch?v=65fNIUL4tdE&feature=related








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CREDITS

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Slide 1 - http://encyclopedia.lubopitko-bg.com/Nervous_System.html

Slide 6: http://www.emc.maricopa.edu/faculty/farabee/biobk/nervendo.gif

Slide 8 - Photo taken from PowerPoint presentation titled “Nervous Tissue” - Slide 2: at http://scidiv.bellevuecollege.edu/nj/Bio241Lectures.htm

Slide 14 - http://what-buddha-said.net/drops/II/Hands_and_Feet.htm

Slide 17 - http://jamaica-gleaner.com/gleaner/20070812/out/out1.html








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End of Presentation

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Date post:	20-Jul-2015
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Integrated Science M2 The Nervous System

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