Nerves Flashcards
What does the sensory nerve do?
CARRIES ELECTRICAL IMPULSES FROM THE SENSORY ORGAN TO THE CNS
What carries electrical impulses from the sensory organ to the CNS?
The sensory nerve
What does the relay neuron do?
Connects the sensory and motor neurone
What connects the sensory and motor neurons?
The RELAY neuron
What does the motor neuron do?
Travels from the CNS to a muscle of gland
What travels from the CNS to a muscle or gland?
Motor neuron
What are nerve impulses?
Electrical signals which are passed from neuron to neuron
What is the stimulus?
The information that triggers a nerve impulse
What is the response?
When the muscles contract
What are synapse?
Tiny gaps between neurons
What do the synapse do?
Chemicals are released to trigger an impulse in the next neuron
What is homeostasis?
Maintenance of a constant environment in our bodies for
Water
Temperature
Sugar levels
What are the three types of nerves?
Sensory, relay, motor
