artery
[C] Countable
pl: arteries
The word evokes a sense of vital flow and critical infrastructure. In biological terms, it represents the primary delivery system of life-sustaining oxygen, implying a high-pressure, one-way movement. Damage to an artery is viewed as catastrophic because it cuts off the essential supply to an entire organ or limb. When applied to urban planning or geography, the term shifts the focus to connectivity and volume. It describes roads that act as the skeletal framework of a city, where any blockage creates a systemic failure similar to a medical clot, paralyzing the movement of people and goods across the network.
Countable when referring to a specific blood vessel in the body or a specific highway in a city map.