Which arteries supply the largest amount of blood to the head and neck?

• A. External Carotid Arteries
• B. Internal Carotid Arteries
• C. Vertebral Arteries
• D. Common Carotid Arteries

Answer: (D)

The main idea is that blood to the head and neck comes primarily through the common carotid arteries. Each side of the neck has a common carotid artery that travels upward and splits into two major branches: the internal carotid arteries, which deliver blood to the brain, and the external carotid arteries, which supply the face, scalp, and other neck structures. Because the common carotids are the main supply trunks that feed these two major arterial systems, they provide the largest overall amount of blood to the head and neck. The other arteries are important branches, but they are either mainly to specific regions (internal carotids to the brain, external carotids to facial/scalp structures) or arise from these trunks rather than serving as the primary entry point themselves.