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At what speed are nerve impulses conducted in myelinated and unmyelinated neurons?
In thick well insulated (myelinated) neurones the impulse can travel in excess of 100m/s. In unmyelinated neurones the impulse can be conducted at less than 1m/s
What are bundles of neurones?
A nerve is a bundle of neurones
What type of neuron's involved in a knee jerk?
sensory neurones motor neurones
Why does the body have both sensory and motor neurones?
the body has both sensory and motor neurones because the sensory neurones sense what is happening and sends the message along and like a motor the motor neurones pass on the message constantly round and round until it reaches its destination
What is a bundle of neurones?
Synapse
Similarities of motor and sensory neurons?
Sensory neurones carry impulses to the CNS, motor neurones carry impulses to muscles.
How may you Explain the role of sensory and motor neurones in a reflex arc.?
what is the role of sensory and motor neurones in a reflex arc
What is the basic unit of structure and functon of the nervous system?
The nervous system is used to trasmit information around the body. It is made of two systems: the central nervous system (which consists of the spine and brain) and the peripheral nervous system (which consists of neurones and receptors). There are three types of neurones: sensory neurones, relay neurons, and motor neurones.
What stores and secretes of neurotransmitter?
The axons of the neurones.
What is a synapese?
a gap between neurones crossed by a chemical
The cell which unerlies the entire nervous system?
They are neurones.
What is the name given to the gaps that connect neurones?
The synapse.
