What provides access through bulkheads on a ship?

The term that refers to the access points through bulkheads on a ship is "hatches." Hatches are specifically designed openings that allow for the passage of people and materials between different compartments and levels of a ship, facilitating movement throughout the vessel. They play a crucial role in maintaining the ship's operational efficiency and safety.

While doors might seem like an appropriate term to describe an access point, they are typically used in residential or commercial structures rather than in nautical terminology. Docks refer to areas where ships are moored for loading and unloading and do not serve as access points through bulkheads. Ladders are used for vertical movement between levels but do not provide direct access through bulkheads in the same manner as hatches. Understanding the specific terminology related to ships and their structures is crucial for effective communication and safety in naval operations.