Drawing Conclusions Through Deductive Reasoning

A cerebral hemorrhage occurs when a defective brain artery bursts; therefore, a cerebral hemorrhage often can lead to a stroke.

An embolism is the sudden blockage of a blood vessel by a mass or an air bubble in the blood; therefore, an embolism in the brain can lead to a stroke.

A tumor is a mass of tissue that does not swell and that rises from tissue that already exist; therefore, brain tumors generally lead to a stroke.

An aneurysm is a permanent, abnoraml, blood-filled swelling of a vessel; therefore, the rupture of an aneurysm can cause a stroke.

Phlebitis is the inflammation of a vein; varicose veins are abnormally swollen or dialated veins; therefore, phlebitis and varicose veins can lead to a stroke.