forensics unit 4: death investigation questions answered 100% correct

forensics unit 4: death investigation questions answered 100% correct forensic pathologist investigating personnel who investigate the cause, manner, time of death, can also be a physician autopsy a surgical procedure performed by a pathologist on a dead body to ascertain from fluids, organs, body- cause of death cause of death identifies the injury or disease that led to the chain of events resulting in death blunt-force injury injury caused by a nonsharpened object such as a bat or a pipe sharp-force injury occurs from weapons with sharp edges; knives or blades asphyxia encompasses a variety of conditions that involve interference with the intake of oxygen petechiae pinpoint hemorrhaging often described in the white area of victims eyes; often observed in strangulation manner of death a determination made by forensic pathologists of the cause of death-homicide, suicide, accident, natural, undetermined algor mortis a process that occurs after death in which the body temperature continually cools until it reaches room temperature livor mortis a medical condition that after death and results in the setting of blood in areas of body closest to the ground rigor mortis results in the stiffening of muscle mass rigidity begins within 24 hours of death and disappears within 36 hours forensic anthropology the use of anthropology knowledge of humans and skeletal structure to examine and identify human remains forensic entomology study of insect matter, growth patterns, and succession of arrival at crime to determine time since death postmortem interval (PMI) length of time that has elapsed once a person has died-if not known may be estimated forensic odontologist study of teeth to properly identify and learn about the victim stages of rigor mortis: 2-10 hours, 10-15 hours, 15-36 hours evidence of rigor mortis: begins in the face, peak every muscle rigid, slowly goes away stages of livor mortis: 0-2 hours, 2-10 hours, 8-10 hours evidence of livor mortis blood begins to settle, not permanently settled, rigidity is fixed until decay peak of rigor mortis 13 hours end of rigor mortis 30 hours what does heat do to rigor mortis? speeds it up 12 hours and earlier (temp is greater than 81.8) 98.6- corpse temp / 1.4 = PMI after 12 hours (temp is less than 81.8) 81.8-corpse temp/ 0.7) = PMI death the permanent end of functions which sustain a living organism cause what caused death? manner how is the death classified? mechanism how physiology did they die?