Summary
Summary Basic Reflexes and the Maintenance of Posture
- Module
- Medicine (MED2022)
- Institution
- Queens University Belfast (QUB)
Basic Reflexes and the Maintenance of Posture Revision Notes
[Show more]
Seller
Follow
Content preview
Basic Reflexes and the Maintenance of PostureLevels of Integration
Spinal cord level
o Homeostasis, reflex actions
o Simplest level of neural activity
o Stereotyped behaviour
Subcortical Levels
o Primitive actions
o Securing food and water
o Reproduction
Cortical Level
o Highest level of neural activity
o Science, philosophy and art
The Reflex Arc
Sense organ- afferent neuron (in via dorsal root)- control centre- efferent neuron (out via
ventral root)
Often a controlled variable
Sensed by intramuscular receptors
o Length- spindle
o Force Golgi tendon organ
Monosynaptic or much more complicated, crossed extensor, locomotory, righting, standing
Spinal Control
Muscle Spindle
Length transducer- spindle, in parallel with muscle
Intrafusal fibres (V extrafusal fibres for developing force)
Afferent fibres from spindle, type Ia
o Large myelinated, fast conducting
o Type II, Myelinated, but slower conducting
Efferent too (gamma efferent)
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 archietyrrell. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
74918 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now