Which of the following is true regarding the pulp?

The pulp is indeed responsible for tooth sensitivity, making this statement accurate. The dental pulp contains nerves and blood vessels, which contribute to the tooth's ability to sense temperature changes, pressure, and other stimuli. This sensory function is crucial for the overall health of the tooth, allowing it to respond to external factors that may indicate issues such as decay or injury.

The pulp is vital tissue, which means it plays a critical role in the health and function of the tooth. Its presence is essential not only for sensitivity but also provides nourishment and support to the surrounding tooth structure. Understanding this function of the pulp can aid in diagnosing dental issues as changes in sensitivity can signal problems requiring intervention.

In contrast, the other statements do not accurately represent the characteristics of dental pulp. The pulp is present in both primary (baby) teeth and permanent teeth, and while it is true that pulp may have limitations in self-repair, it does have some capacity for regeneration under certain conditions. This knowledge is vital for understanding dental health and treatment options available to maintain tooth vitality.