The model shows how pimples are formed in the skin. Why do you think this process can occasionally lead to pain? A. The swollen pimple completely stops blood flow to the area, starving the nerves. B. The bacteria replication leads to swelling, which irritates nerves in the dermis.
C. The nerves around the pore cannot transmit an action potential, so they can’t send signals.
D. The pimple presses on the epidermis, which is where all the sensory receptors in the skin are located.