Lacerations Tears

Tears of the skin from blunt trauma are called lacerations. Many tears are associated with both contusions and abrasions. For example, a blow to the head with a hammer may cause tearing of the scalp with adjacent abrasions. If blood escapes into the surrounding tissues, the skin can also be bruised.

A laceration must be distinguished from a cutting injury. A laceration usually has bridges of tissue con -necting one side of the wound to the other. Cutting and incised wounds have no tissue bridges because a sharp object cuts the wound cleanly from the top to the bottom of the wound.

Deaths due to blunt trauma may have some or none of the above external signs of trauma. This is particularly true of fatal blows to the abdomen.

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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