Which nerves pick up messages from outside the body and bring them to the brain?

Which nerves pick up messages from outside the body and bring them to the brain?

• A. Nervous System
• B. Sensory Nerves
• C. Adrenal Gland
• D. Ovaries

Answer: (C)

Sensory nerves carry information from the outside world into the brain. They connect sensory receptors in the skin, eyes, ears, nose, and other senses to the central nervous system, sending signals as electrical impulses so the brain can interpret what we’re experiencing—touch, heat, pain, light, sound, and smell. The broader nervous system includes these pathways but isn’t itself the specific route for sensing external stimuli. Glands like the adrenal gland and organs such as the ovaries don’t function as the pathways for sensing the environment; they produce hormones and perform other roles, not primary sensory transmission. So the nerves that pick up messages from outside the body and bring them to the brain are the sensory (afferent) nerves.

Sensory nerves carry information from the outside world into the brain. They connect sensory receptors in the skin, eyes, ears, nose, and other senses to the central nervous system, sending signals as electrical impulses so the brain can interpret what we’re experiencing—touch, heat, pain, light, sound, and smell. The broader nervous system includes these pathways but isn’t itself the specific route for sensing external stimuli. Glands like the adrenal gland and organs such as the ovaries don’t function as the pathways for sensing the environment; they produce hormones and perform other roles, not primary sensory transmission. So the nerves that pick up messages from outside the body and bring them to the brain are the sensory (afferent) nerves.