Receptors & Neurones

Question 1

How does a receptor detect a stimulus and cause an effect?

Answer 1

stimulus connects to receptor which connects to sensory
neuron which connects to relay neuron to motor neuron then effecor
which then brings a response

Question 2

What is the order of receptor detecting stimulus?

Answer 2

stimulus - receptor - sensory neuron - relay neuron - motor neuron - effector

Question 3

What is a receptor?

Answer 3

• is specific - will only detect one type of stimulus
• is a cell or protein
• transform stimulus into an electrical nerve impulse

Question 4

What is the sensory neuron?

Answer 4

• single long dendron

- has a single short axon

Question 5

What is a relay neuron?

Answer 5

• within CNS
• many short dendrons
• many short axons - which are connectors

Question 6

What is a motor neurons?

Answer 6

• many short dendrites
• single long axon
• ends with neuromascular junction

Question 7

What is a effector?

Answer 7

• muscle

- gland