The Reflex Arc

Question 1

Types of neurons

Answer 1

1. Sensory
2. Relay
3. Motor

Question 2

Structures involved in the reflex arc

Answer 2

1. Receptor
2. Sensory neuron
3. Spinal cord
4. Grey matter
5. Relay/Inter neuron
6. Motor neuron
7. Effector
8. Dorsal root ganglion
9. White matter
10. Ventral root

Question 3

First stage in the reflex arc

Answer 3

Stimuli stretches muscle, activating the sensory receptor

Question 4

Second stage in the reflex arc

Answer 4

Sensory neuron transmits signal to the spinal cord

Question 5

Third stage in the reflex arc

Answer 5

Grey matter in the spinal cord receives the signal through the relay. inter neuron and relays it to the motor neuron

Question 6

Fourth stage in the reflex arc

Answer 6

Motor neuron transmits the signal from the spinal cord to the effector

Question 7

Fifth stage in the reflex arc

Answer 7

The effector receives the signal, causing the muscle to contract