X

Download Neurons PowerPoint Presentation

SlidesFinder-Advertising-Design.jpg

Login   OR  Register
X


Iframe embed code :



Presentation url :

Home / Health & Wellness / Health & Wellness Presentations / Neurons PowerPoint Presentation

Neurons PowerPoint Presentation

Ppt Presentation Embed Code   Zoom Ppt Presentation

PowerPoint is the world's most popular presentation software which can let you create professional Neurons powerpoint presentation easily and in no time. This helps you give your presentation on Neurons in a conference, a school lecture, a business proposal, in a webinar and business and professional representations.

The uploader spent his/her valuable time to create this Neurons powerpoint presentation slides, to share his/her useful content with the world. This ppt presentation uploaded by fakkulal in Health & Wellness ppt presentation category is available for free download,and can be used according to your industries like finance, marketing, education, health and many more.

About This Presentation

Neurons Presentation Transcript

Slide 1 - Biology 3201 Unit 1 – Maintaining Dynamic Equilibrium II Section 1 – Nervous System “The Neuron”
Slide 2 - The Neuron The basic functional unit of the nervous system. Function: Send impulses to and from the CNS and PNS and the effectors (muscles/glands)
Slide 3 - Neuron Structure
Slide 4 - Dendrite  Fine hair-like extensions on the end of a neuron. Function: receive incoming stimuli. Cell Body or Soma  The control center of the neuron. Function: Directs impulses from the dendrites to the axon. Nucleus  Control center of the Soma. Function: Tells the soma what to do. Axon Pathway for the nerve impulse (electrical message) from the soma to the opposite end of the neuron. Myelin Sheath  An insulating layer around an axon. Made up of Schwann cells. Nodes of Ranvier  Gaps between schwann cells. Function: Saltatory Conduction (Situation where speed of an impulse is greatly increased by the message ‘jumping’ the gaps in an axon).
Slide 5 - ppt slide no 5 content not found
Slide 6 - Types of Neurons There are 3 types of neurons. Sensory Neurons  Neurons located near receptor organs (skin, eyes, ears). Function: receive incoming stimuli from the environment. Motor Neurons  Neurons located near effectors (muscles and glands) Function: Carry impules to effectors to initiate a response. Interneurons  Neurons that relay messages between other neurons such as sensory and motor neurons. (found most often in Brain and Spinal chord).
Slide 7 - Types of Neurons
Slide 8 - Nerves Nerves  Collections of neurons that are joined together by connective tissue. Responsible for transferring impulses from receptors to CNS and back to effectors.
Slide 9 - How Do Neurons Operate? Neuron at Rest  Resting Potential Occurs when the neuron is at rest. A condition where the outside of the membrane is positively(+) charged compared to the inside which is negatively(-) charged. Neuron is said to be polarized. Neuron has a voltage difference of -70 mV
Slide 10 - How is resting potential maintained? Ion Distribution
Slide 11 - How is resting potential maintained? At rest, the sodium gates are closed. Membrane is 50 times more permeable to K+ ions causing them to “leak” out. This causes outside of membrane to have an abundance of + charges compared to inside. The inside of the membrane is negative compared to the outside. This is helped by the (-) proteins etc. The “sodium-potassium” pump pulls 2 K+ ions in for 3 Na+ ions sent out. This further creates a charge difference!!
Slide 12 - Action Potential The mechanism by which neurons send impulses. They are comprised of electrical signals generated at the soma and moving along the axon toward the end opposite the soma (motor neurons) Action potentials occur in two stages: Depolarization Repolarization
Slide 13 - Depolarization in an action potential When the neuron is excited past its “Threshold” the following events occur: Sodium ions (Na+) rush into the axon. This neutralizes the negative ions inside. The inside of the axon becomes temporarily (+) while the outside becomes temporarily (-). The reversal of charge is known as “depolarization” Nearby Sodium (Na+) channels open to continue the depolarization.
Slide 14 - ppt slide no 14 content not found
Slide 15 - Let’s Have a look. http://www.mcgrawhill.ca/school/booksites/biology/student+resources/toc/unit+4+homeostasis+maintaining+dynamic+equilibrium/chapter+12+the+nervous+system/cool+stuff+to+see+and+do/movie+channel+behaviour.php
Slide 16 - Repolarization This is the restoring of the (+) charge on the outside of the axon and (-) on the inside. Potassium gates open and potassium floods out. This generates positive charge on the outside of membrane. Sodium Channels Close (no + charges can get inside) The Sodium/Potassium pump rapidly moves Sodium out of the cell. Further creates the (+) charge outside with a (-) charge inside.
Slide 17 - ppt slide no 17 content not found
Slide 18 - Refractory Period Brief period of time between the triggering of an impulse and when it is available for another. NO NEW action potentials can be created during this time.
Slide 19 - Saltatory Conduction The “jumping” of an impulse between the “Nodes of Ranvier” thus dramatically increasing it’s speed. Only occurs in axons having Myelin. 2m/s  120 m/s
Slide 20 - All or None Response If an axon is stimulated above its threshold it will trigger an impulse down its length. The strength of the response is not dependent upon the stimulus. An axon cannot send a mild or strong response. It either responds or does not!!!
Slide 21 - Homework View ILO 06 – Structure of a Neuron Complete Activity 1 and 2 (Go to Work) View ILO 07 – Nerve Tansmission Answer Q. 2, 4, 5, 7 Explain the critical role Myelin plays to an axon. Include at least two roles it plays.
Slide 22 - This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.
 

Frequently Asked Questions

> About SlidesFinder?

Slidesfinder is a website that allows users to upload and share their PowerPoint presentations online. It provides a platform for individuals and businesses to share their ideas and knowledge through presentations, and for others to view and download these presentations for educational or professional purposes.
Slidesfinder offers a wide range of presentation topics and categories, including business, education, science, technology, health, and more. Users can also search for presentations using keywords, tags, or by category. The website provides tools to create professional presentations with rich media, animations, and graphics.



One of the key features of Slidesfinder is its user-friendly interface, which allows users to easily upload, view, and share presentations. Users can also embed their presentations in their websites or blogs using the website's embed code feature.
Slidesfinder also offers premium services, such as the ability to create private presentations and to download presentations in high-quality formats. However, the basic features of Slidesfinder are free to use, making it accessible to anyone who wants to share their ideas and knowledge through presentations.

> How do I register with SlidesFinder?

Go to registration page (you can see signup link on top of website page) https://www.slidesfinder.com/signup . If you have facebook/gmail account them just click on SIGN IN WITH FACEBOOK OR SIGN IN WITH GOOGLE button, by this you will be a registered member of slidesfinder without filling any form, required detail automatically will be fatch from your account. If you do not a Facebook account, then click on "Signup". Fill all required fields and you will be a registered member of slidesfinder.

> Is slidesfinder account confirmation is mandatory?

Yes it is mandetory to active your account to login.

> Do I need to signup/login on SlidesFinder before uploading a PowerPoint presentation?

Yes, you need to login with your account before uploading presentation. Your username will be displayed on your uploaded presentation. Your registered email id is needed for sending your stats of uploaded presentation.

Slidesfinder is a sharing website for PowerPoint presentations search and share. Find your interest in the form of powerpoint presentations on slidesfinder and save your valuable time . On Slidesfinder you get presentations from our huge library of professional ppt presentations. We believe in making your search INFORMATIVE and FUN. Find your best ppt presentation from a pool of PowerPoint presentations stacked under important industry categories like business & management, heath & Wellness,eduction & training etc. We provide unique informative PowerPoint presentation for marketers, presenters and educationists. These professional PowerPoint presentations are uploaded by professionals from across numerous industry segments.These ppt presentations are available for FREE download.

Not just finding your interest, but facilitate you broadcast your interest. We have created this platform for easy sharing of PowerPoint presentations, ensuring that these presentations get maximum exposure. Create your slidesfinder account and upload PowerPoint presentations for free, share on social media platforms and BUILD YOUR CROWD WITH PRESENTATION !!

The Great Buddha says, "Share your knowledge.It’s a way to achieve immortality"! So, start sharing knowledge and we are here to make that immortal !!

© 2013-2022 SlidesFinder. All rights reserved.

Re-productivity of content are not allowed. Without prior written permission from author, commercial use of any content is illegal.