Internal organs like the heart, kidneys, and blood vessels:

A) do not have pain receptors.
B) have pain receptors that connect via a direct pathway to the brain.
C) have pain receptors without their own pathways to the brain.
D) have pain receptors that are disconnected from the spinal cord.

Internal Organs

The critical structures within the body that perform its vital functions, including the heart, lungs, liver, and kidneys.

Pain Receptors

Pain receptors, or nociceptors, are sensory neurons that respond to damaging or potentially damaging stimuli by sending signals to the brain, which interprets them as pain.

Spinal Cord

The long, thin, tubular structure made up of nervous tissue, which extends from the brainstem down the back, and is responsible for transmitting neural signals between the brain and the rest of the body.