Is this a multiple choice question?
Your neurons are separated into three groups, Motor, interneurons, and sensory neurons. The motor neurons are responsible for movement, interneurons are in the spinal cord which change sensory neurons into motor neurons which make you move
Answer to your question is true.
The pinna is part of the external ear.
Answer:
A chemical called endorphins are released in your brain, this causes a stress relief sensation and mood boost
Explanation: