Summary
Summary SLK120 Chapter 3 Notes
- Course
- SLK120 (SLK120)
- Institution
- University Of Pretoria (UP)
SLK120 Chapter 3 Notes
[Show more]
Content preview
SLK120 CHAPTER 3NOTES
Taneil Thompson
UNIVERSITY OF PRETORIA, 2020
, DISCLAIMER:
PLEASE NOT THAT THIS INFORMATION IS NOT MY OWN. IT HAS
BEEN SOURCED FROM THE TEXTBOOK TITLED ‘PSYCHOLOGY
THEMES AND VARIATIONS’. THIS DOCUMENT SHOULD BE USED
IN ADDITION TO THE TEXTBOOK, LECTURES, LECTURE NOTES
AND TUTORIAL WORKSHEETS.
, SLK120 Notes
Chapter 3- Biology of Behaviour
(For Semester Test 1)
1. Identify the various parts of the neuron and the main functions
of glial cells. (102-104)
Neurons:
- Individual cells in nervous system (living tissue composed of cells
(neurons and glia)/ complex communication network in which signals are
constantly being transmitted, received and integrated) that receive,
integrate and transmit information.
- Interneurons (communicate with other neurons) are most common in the
human body
- Sensory neurons: receive signals from outside nervous system
- Motor neurons: carry messages from nervous system to muscles that
move the body
- Basic chains of communication within nervous system.
- Communicate with each other, sensory organs and muscles in the body.
- Parts of a neuron (please refer to diagram below as well)
1.) Dendritic trees that are made up of dendrites which are specialised
to receive information.
2.) This information is then carried to the soma (cell body) which
houses the nucleus and other structures common to cells.
3.) From here the information travels away from the soma, down the
axon which is a long, thin fibre that transmits signals towards other
neurons/muscles/glands.
4.) In order for the axon to conduct signals effectively, it has a myelin
sheath (cells with a high concentration of a white fatty substance
called myelin)(derived from special types of glial cells) which acts
as an insulating material and aid in accelerating the transmission of
signals.
5.) At the end of an axon, there are terminal buttons which are small
knobs that secrete chemicals known as neurotransmitters (serve as
messengers that activate nearby neurons).
6.) The point at which a terminal button and a soma meet is called a
synapse which is a junction where information is transmitted from
one neuron to another.
Glial cells (number 7 on the diagram):
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TaneilThompson. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R50,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
51036 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 15 years now