What role do sensory neurons play in the nervous system?

Sensory neurons are crucial components of the nervous system as they are responsible for conducting impulses from sensory receptors towards the brain or spinal cord. This process allows the body to receive and interpret environmental stimuli, such as sound, light, touch, and temperature. By transmitting information about external and internal conditions, sensory neurons play a vital role in reflex actions and responding to various stimuli which is essential for survival and interaction with the environment.

In contrast, the other options presented relate to different functions within the nervous or endocrine systems. Transmitting impulses from muscles to the brain refers to the function of motor neurons, which carry signals away from the central nervous system to initiate movement. Connecting different neurons within the brain describes the role of interneurons, which facilitate communication between sensory and motor neurons. Lastly, the regulation of hormonal responses pertains to the endocrine system rather than the direct function of sensory neurons, emphasizing the distinct roles that different neurosystems play in overall body function.