Neurones and Sensory Receptors (OCR A-Level Biology A): Flashcards
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Practise the cards
10 cards from this deck
Cell signalling
Cell signalling
Process of communication between cells
Sensory neurone impulse direction
Sensory neurone impulse direction
Towards CNS from sensory receptors
Motor neurone impulse direction
Motor neurone impulse direction
Away from CNS to effectors
Myelin sheath composition
Myelin sheath composition
Lipid and protein
Schwann cells function
Schwann cells function
Wrap around axon to form myelin sheath
Nodes of Ranvier
Nodes of Ranvier
Gaps in myelin sheath along axon
Sensory receptors act as
Sensory receptors act as
Transducers (convert energy forms to electrical impulses)
Two types of effectors
Two types of effectors
Muscles (contract) and glands (secrete)
Mechanoreceptors detect
Mechanoreceptors detect
Mechanical strain or stretching
Pacinian corpuscles receptor type
Pacinian corpuscles receptor type
Mechanoreceptors (detect pressure)