Chief Complaint: 62-year-old man with oesophageal bleeding
History: Vincent Miller, a 62-year-old accountant, has had a "drinking problem" throughout most of his adult life. He drinks about a half-case of beer each day. He has lost several jobs over the years for drinking at the workplace or showing up for work drunk. He lost his driver's license for drunk-driving, and his drinking has placed a considerable strain on his marriage. He has tried several self-help programs as well as Alcoholics Anonymous, all with little success. He has been hospitalized on several occasions over the years. Vincent has a severe tremor in his hands (probably a result of excessive alcohol intake), which makes it very difficult for him to use a spoon, fork, and knife to eat. It's your first day on the job as an occupational therapist, and you are consulted by his physician to see if there is any way to help Vincent use eating utensils. Not knowing anything about him, you open up his past medical records, which, incidentally, are quite thick.
First Hospitalization:
You note that Vincent was hospitalized at age 32 with a complaint of vomiting up blood after a drinking binge that lasted seven days and was marked by excessive and repeated vomiting episodes. The vomitus was bright red.

The hospital chart lists a diagnosis of "Upper GI bleed" due to a Mallory-Weiss tear. You look up "Mallory-Weiss tear" in an internal medicine textbook and see that it is defined as "a longitudinal tear in the mucosa at the gastroesophageal junction -- i.e. in the area of the lower oesophageal sphincter -- caused by repeated vomiting."

 Questions:
1. Why was the blood bright red, rather than the color of "coffee grounds"?

2. Based upon your knowledge of the vomiting reflex, why might severe vomiting tear the mucosa?