Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Muscles of Chest Cavity - Lecture Notes | BIOS 482, Study notes of Biology

Material Type: Notes; Professor: Naples; Class: Biology of Forensic Analysis; Subject: BIOLOGICAL SCIENCES; University: Northern Illinois University; Term: Unknown 1989;

Typology: Study notes

Pre 2010

Uploaded on 08/18/2009

koofers-user-t39
koofers-user-t39 🇺🇸

10 documents

1 / 7

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
1
•Interior of chest wall,
showing ribs, muscles and
blood vessels.
•White areas of calcification
are similar to “bumps”
reported on ribs of historic
populations reported to
have a variety of diseases
•Note that the calcifications
occur between the ribs, not
on their inner surfaces
•Could indicate periosteal
reaction and overgrowth of
ribs????
Large “plaques” on inner surface of
ribs and adjacent tissues
These features are
consistent with a
diagnosis of
tuberculosis
in the living
patient
But, do these features affect the bones?
“Plaques” are calcified, but are able to be
removed from the inner surface of the ribs
and did not affect the surface of the bone! Therefore, many of the
“features” identified as disease signs on bone are probably
artifacts from preparation
pf3
pf4
pf5

Partial preview of the text

Download Muscles of Chest Cavity - Lecture Notes | BIOS 482 and more Study notes Biology in PDF only on Docsity!

•Interior of chest wall, showing ribs, muscles and blood vessels. •White areas of calcification are similar to “bumps” reported on ribs of historic populations reported to have a variety of diseases •Note that the calcifications occur between the ribs, not on their inner surfaces •Could indicate periosteal reaction and overgrowth of ribs????

Large “plaques” on inner surface of ribs and adjacent tissues These features are consistent with a diagnosis of tuberculosis in the living patient

But, do these features affect the bones?

“Plaques” are calcified, but are able to be removed from the inner surface of the ribs and did not affect the surface of the bone! Therefore, many of the “features” identified as disease signs on bone are probably artifacts from preparation

  • “Plaques” are probably related to tissue adhesions resulting from infections of the pleural surfaces from tuberculosis or pneumonia

Conclusion

Oddities of ribs, such as color changes, bumps, roughness and other surface irregularities more likely are the result of postmortem factors, especially the methods used to process skeletal elements for inclusion in museum collections!

The postmortem processing of bones has nothing to do with the previous lives of the

Trauma

In forensic cases injury can not only cause death, but analysis of the patterns can permit the investigator to determine what occurred, how, when, and by what means. Trauma analysis can allow determination of cause and manner of death. All body organs and systems are subject to trauma, and each responds characteristically to injuries

Intravenous drug usage

  • Not only does the user face the problems caused by the effects of the drugs, but potentially those caused by the carrier in which it is suspended
  • In some cases drugs are mixed with poisons
  • Often “cut” by dealers to reduce the amount of drug in each volume purchased by the user
  • All foreign materials introduced into the body can cause problems

Why do intravenous drug users have many physical problems and symptoms of this activity? Drugs are often “cut” with talc that accumulates within the skin to leave characteristic irritations.

Scarring can also occur from constant subdermal irritation, such as hemorrhaging, as shown here, i. e. “tracks”

Talc also accumulates in internal organs, such as the liver, where it can block vessels and damage tissues

Liver tissue with talc infiltrations under polarizing light

Gunshot wounds

  • The effects vary greatly depending on many factors
  • Body region shot
  • Type of bullet
  • Distance from victim
  • Angle at which bullet penetrates tissues

•New forensic methods will be needed and developed in the future

•Many new career paths will be available for those who have an interest in adapting the areas of science and medicine they study to solving crimes and preventing violence

Craniofacial reconstruction

techniques

Contemporary studies can so the same using computer imaging

Traditionally done on skulls, using tissue depth markers

Wild gorilla with osseous growth on face.

Diagnosis?