BRAINCAKEPacinian Corpuscles
Pacinian corpuscles are located deep within the skin and detect mechanical pressure. Most are found in the fingers, soles of the feet and external genitalia but some are also found within the joints, ligaments and tendons so the organism can detect which joints are changing direction.
The tip of a sensory neurone is in the middle of the Pacinian corpuscle which is made of layers of connective tissue separated by a viscous gel.
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Key terms in this lesson
- generator potential
- A change in potential produced in a sensory receptor cell in response to a stimulus, which if it reaches the threshold triggers an action potential.
More in Neuronal Communication
- Sensory Neurones
- Motor Neurones
- Myelinated Neurones
- Sensory Receptors
- Generator Potential
- Resting Potential
- Depolarisation
- Repolarisation
All 38 lessons in Neuronal Communication · All AQA A-level Biology topics