Flashcards in Blunt Force Trauma Deck (20)
What is the medical definition of wound?
Disruption to the continuit of the tissues produced by external mechanical force
What is the legal definition of wound?
Breach of full thickness of skin or lining of lip - excludes bruising, abrasion)
What mechanical force is a graze on the knee>
What are the three tissue properties?
What are blood vessels vulnerable to?
What is semi-fluid brain vulnerable to?
What is bone vulnerable to?
What are hollow organs vulnerable to?
What re the two mechanisms of abrasion?
1. Crushing by vertical force
2. Scraping by tangiential force- graze or scrape
Do abrasions leave a scar?
What are the most useful injuries forensically?
Abrasions- indicate site of impact, direction, nature of object and potential for trace evidence transfer
Can bruising occur post mortem?
No- always vital phenomenon
What produces the colour change in bruises?
Chemical degradation of haemoglobin:
haemosiderin, biliverdin, bilirubin
What makes a bruise dark red?
What makes a bruise purple/black?
What makes a bruise green after 4-5 days
When does a bruise become yelloq?
What mimics bruising in asian populations?
Mongolion blue spot
What BFT injurt causes full thickness breach of skin?