Neurones and Sensory Receptors (OCR A-Level Biology A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which direction do sensory neurones carry impulses?
Which direction do sensory neurones carry impulses?
Towards the CNS from sensory receptors
What is the myelin sheath composed of?
What is the myelin sheath composed of?
Lipid and protein
What is the function of a transducer in sensory receptors?
What is the function of a transducer in sensory receptors?
Convert one form of energy into another
Where is the cell body positioned in a motor neurone?
Where is the cell body positioned in a motor neurone?
At one end of the cell
What are the two types of effector in mammals?
What are the two types of effector in mammals?
Muscles and glands
What do Schwann cells do?
What do Schwann cells do?
Wrap around the axon to form myelin sheath
Where are photoreceptors found?
Where are photoreceptors found?
In the retina of the eye
How do Pacinian corpuscles initiate a nerve impulse?
How do Pacinian corpuscles initiate a nerve impulse?
Pressure opens ion channels in axon ending
Which type of neurone has dendrites on its cell body?
Which type of neurone has dendrites on its cell body?
Motor neurone
What is the function of nodes of Ranvier?
What is the function of nodes of Ranvier?
Speed up impulse transmission