What is the dorsal nerve responsible for?

The dorsal nerve, particularly in the context of the anatomy of the lower limb, is primarily responsible for supplying sensory impulses to the toes and the foot. This function is crucial as it allows the brain to receive information about touch, pressure, temperature, and pain in those areas, facilitating a person’s ability to navigate their environment and respond to stimuli.

The other choices do not accurately represent the responsibilities of the dorsal nerve. For example, supplying the wrist and controlling hand movements pertain more to nerves that innervate the upper extremities, such as the radial and ulnar nerves. Similarly, extending the fingers is specifically associated with the action of tendons and muscles related to the hand rather than the dorsal nerve's function. Therefore, option C stands out as the most accurate in describing the role of the dorsal nerve.