A patient was brought to the Emergency Department by ambulance with two arrow wo
ID: 3518540 • Letter: A
Question
A patient was brought to the Emergency Department by ambulance with two arrow wounds. One arrow is still in the patient on the left side; entering anteriorly between the 7th and 8th ribs in a 15 degree angle, the arrow head protruding posteriorly. The second wound is located in the posterior cervical triangle.
? What serosal cavities have been penetrated by the first arrow?
? Explain the location, the microscopic cellular components of the serous membrane, and the purpose of
the serous membrane.
Explanation / Answer
1. The thoracic cavity and the chest cavity have been penetrated by 1st arrow.
2. Serous membrane is a thin membrane which lines internal body cavities and organs such as lungs, heart and abdominal cavity. It allows frictionless movements in many organs.