When a finger is pricked by a thorn,what is the order in which information is communicated,from the time of the prick through to withdrawal of the hand and realization of pain?
A)sensory neuron,brain,interneuron,motor neuron
B)sensory neuron,interneuron,motor neuron,brain
C)motor neuron,interneuron,brain,sensory neuron
D)brain,interneuron,sensory neuron,motor neuron

Question

Quizplus · Accepted Answer

When a finger is pricked by a thorn, the sensory neuron first sends the information to the interneuron, which then sends it to the motor neuron, causing the hand to withdraw. Finally, the brain receives the information and realizes the sensation of pain. Therefore, the correct order is sensory neuron, interneuron, motor neuron, brain. Option B represents this order, hence it is the correct choice.

When a Finger Is Pricked by a Thorn,what Is the Order