Question

When we touch a pointed object, we spontaneously withdraw our hand. With reference to this example answer the following:
What is the stimulus in this case?
What is the receptor?
What is the effector?
What is the response?

Answer 1

Answer:

1) a thing or event that evokes a specific functunal reaction in an organ or tissue.

2) an organ or cell able to respond light heat or other external stimulus and transmit a signalto a sensory nerve

3)an organ or cell that acts in response to a stimulus