Examkin

Question

Difficulty: EasyHuman Anatomy and Body Systems

Blood pumped out of the heart travels under high pressure through thick, elastic, and muscular vessels to supply tissues throughout the body. What are these vessels called?

  1. A
    Veins
  2. ArteriesAnswer
  3. C
    Venules
  4. D
    Lymphatic vessels

Answer

Arteries
Arteries are thick, elastic blood vessels structured with heavy muscular walls to accommodate and sustain high pressure as blood is ejected away from the heart to the systemic circulation.

Step-by-Step Solution

1
Identify the direction of blood flow and pressure conditions described in the stem
The vessels must carry blood away from the heart under high pumping pressure
Contraction of the heart's ventricles generates substantial pressure that must be managed by the immediate downstream vessels
2
Relate these physiological requirements to vessel anatomy and function
Arteries possess thick tunica media layers containing smooth muscle and elastic fibers that handle high pressure away from the heart
Veins and venules transport blood toward the heart under low pressure, making arteries the correct classification

Key Concept

Arteries are thick-walled, muscular blood vessels that carry blood away from the heart under high pressure.
Estimated Time:45s
Rate this question

Topics

Human Anatomy and Body Systems

More questions from this topic