What is the name of the disease process described as a localized weakness in the wall of an artery that results in a bulging sac when the heart beats?

• A. Aneurysm
• B. Varicose
• C. Hemorrhage
• D. Embolism

Answer: (A)

An aneurysm describes a localized weakness in the wall of an artery that allows a bulging sac to form as arterial pressure pushes outward with each heartbeat. The wall becomes thinner or weaker in a specific spot, so the vessel dilates rather than staying a regular tube. This dilation can occur in large arteries like the aorta or in brain vessels and is often associated with underlying problems such as long-standing high blood pressure, atherosclerosis, connective tissue disorders, infection, or prior injury. If the aneurysm enlarges or ruptures, it can cause life-threatening internal bleeding, making it a critical condition to recognize and treat. Varicose refers to enlarged veins, not arteries, and describes a venous issue. Hemorrhage means bleeding itself, which can result from a rupture but isn’t the process of forming a bulging arterial sac. Embolism is a blockage caused by a traveling clot or material. The described process matches an aneurysm.