Answer:
False. Nerve impulses do not go directly from sensory organs to muscles and glands that respond. Instead, they travel through a complex network of nerves called the nervous system. The nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS).
When a sensory organ, such as the eyes or ears, detects a stimulus, it sends electrical signals in the form of nerve impulses to the CNS. The CNS consists of the brain and spinal cord. It processes and interprets these signals, allowing us to perceive and understand the sensory information.
Once the CNS has processed the signals, it sends motor impulses back to the muscles and glands that will respond. These motor impulses travel through the PNS, which includes the nerves that extend from the CNS to the rest of the body.
For example, let's say you touch a hot stove with your hand. The sensory receptors in your skin detect the heat and send nerve impulses to your brain through the PNS. The brain then quickly processes this information and sends motor impulses back to the muscles in your hand, causing them to contract and pull your hand away from the stove.
In summary, nerve impulses do not go directly from sensory organs to muscles and glands. Instead, they travel through the nervous system, specifically the CNS and PNS, to allow for proper processing and response to stimuli.