Summary
Summary Receptors.
Revision notes on receptors. A level biology OCR A revision notes. Notes on module 5: Communication, homeostasis and energy. Summary/ information you need to memorize for a level biology OCR A exams.
[Show more]
Seller
Follow
Content preview
Receptors: Sensory receptors:
o Specialised cells that can detect changes in our
surroundings.
o They are specific to a single type of stimulus.
o They are energy transducers – they convert one form of
energy to electrical energy.
Receptor Location Sense Energy Form “Transduced”
to Electrical
Rods/Cones Retina Sight Light
Taste Buds Tongue Taste Chemical Potential
Olfactory Cells Nose Smell Chemical Potential
Pacinian Corpuscles Skin Touch Movement & Pressure
Meissner’s Corpuscles Skin Touch Movement & Pressure
Ruffini’s Endings Skin Temperature Heat
Proprioceptors Muscles Placement of Limbs Mechanical Displacement
(Body Awareness) (Stretching).
Hair Cells in Semi- Ear Balance Movement
circular Canals
Hair Cells in Cochlea Ear Hearing Sound
The Pacinian Corpuscle:
o Mechanoreceptor found in the skin.
o Detects mechanical stimuli (pressure).
o The end of the sensory neurone is found in the centre of
the corpuscle.
o It is surrounded by layers of connective tissue called
lamellae.
o Each layer is separated by a layer of gel.
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 flcarr23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 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