1.2.2 Time of Death and 1.2.3 Forensic Toxicology

Forensic Chemistry

________: The testing of non- biological substances such as powders or pills to identify or measure them.

Paracelsus

________ (1493- 1541): All things are poison; only the dose makes it poison.

Metabolism

________: The chemical reaction processes of breaking down molecules for energy and of using simple building blocks to build up more complex molecules needed for growth and repair.

Forensic Entomologist

________: scientists who study bugs.

Nutrients

________: A substance that the body needs to stay healthy.

Molecules

________: A group of atoms held together by chemical bonds.

Forensic Toxicology

________: Identifies substances that may have played a role in the death.

Digestion

________ takes nutrients and molecules from food and turns the rest into waste.

Toxicology

________: A field of science that studies the effects of chemicals on the human body.

Digestive system

________: An organ system that breaks down food to extract energy and nutrients, then evacuates remaining waste.

Algor mortis

________: the change in body temperature after death.

chemical reactions

The body builds body parts, drives ________, and supplies energy.

Physiological time of death

The time when the decedents vital functions stopped

Estimated time of death

The time the medical examiner estimates that the death occurred

Legal time of death

The time of death recorded on the death certificate; based on when the body was found or physically pronounced dead

algor mortis

the change in body temperature after death

rigor mortis

the stiffening of joints and muscles after death

livor mortis

pooling of blood after death, leading to purplish red skin discoloration

Write the 6 events in the death timeline

Algor mortis, clouding of corneas, rigor mortis, livor mortis, decomposition, insect activity

Forensic Entomologist

scientists who study bugs

Paracelsus (1493-1541)

All things are poison; only the dose makes it poison

Toxicology

A field of science that studies the effects of chemicals on the human body

Toxicant

Manufactured chemicals

Forensic Toxicology

Identifies substances that may have played a role in the death

Digestive system

An organ system that breaks down food to extract energy and nutrients, then evacuates remaining waste

Nutrients

A substance that the body needs to stay healthy

Molecules

A group of atoms held together by chemical bonds

metabolism

The chemical reaction processes of breaking down molecules for energy and of using simple building blocks to build up more complex molecules needed for growth and repair

Forensic Chemistry

The testing of non-biological substances such as powders or pills to identify or measure them