Lecture notes
Bio psych year 1 lecture 3
- Module
- Biological Psychology
- Institution
- University Of Westminster (UOW)
This document contains all relevant slide information and diagrams from lecture 3 of the module bio psych
[Show more]
Seller
Follow
Content preview
Function of a Nervous systemPrimary function of the nervous system
- To speed, intergrate & co-ordinate physiological and behavioural responses to changes in
the internal and external environments.
Internal changes
- Homeostasis
External changes
- Sensory processing
- Motor co-ordination
Reflexes, cognition, memory, learning
Terms
Afferent (sensory): Conveys information from periphery to CNS
Efferent (motor): Conveys information from CNS to periphery
- Mnemonic: Afferent Arrives- Efferent Exits
Receptor or sensory neuron:
- Specialised cell sensitive to stimuli: Four main types:
, Photoreceptors: found in retina and respond to light
Mechanoreceptros: found in skin, deep tissue, organs and joints and respond to mechanical
force
Thermoreceptors: found in surface tissues; skin, buccal membrane
Chemoreceptors: found in arteries, the olfactory, skin system and tongue
Motor neuron
- Receives information from other neurons and conducts impulses to mulsce or gland cells
Interneuron
- Conveys information between two other neurons
Central nervous system- peripheral nervous system
- Central (CNS) = Brain & Spinal cord (everything encased in bone)
- Peripheral (PNS = Everything outside of CNS: Two divisions- somatic & automatic
Somatic Nervous System- Automatic nervous system
- Somatic Nervous System (SNS) = Afferent & Efferent
Afferent: Sends information from detectors and relays it to the CNS
Efferent: Sends voluntary motor signals from CNS to effectors
- Automatic nervous system (ANS): Two divisions- Sympathetic & Parasympathetic
Sympathetic: Involantary response
Parasympathetic: Involuntary response
Neuron- Nerve fibre- nerve
- Neruonal axon covered by endoneurium = nerve fibre
- Collection of nerve fibres wrapped in perinnium = fascicle
- Collection of fascicli covered in empeurium = nerve
Grey and White matter
- Grey matter = mainly neurons: High concentration of neuronal cell bodies seen in cortex and
nuclei
- White matter = High concentration of myelin indicates ‘tracts’ (Pathways)
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 credit card 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 these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller benjaminmosquera02. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67232 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now