Comparison of the Nervous and Endocrine Systems in human body communication and integration.
Diagram comparing the Nervous System and Endocrine System, showing components like the brain, spinal cord, nerves, pineal gland, hypothalamus, pituitary gland, thyroid gland, thymus gland, adrenal gland, pancreas, and ovaries/testes, with text describing their roles in communication and integration using electrical signals and chemical messengers (hormones).