Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Free Tools

Explore our collection of AI-powered tools designed to boost your productivity.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Free Tools Pricing Schools Business

11 Questions

0 Views

Muscle Changes After Death

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the process that occurs in the muscles after death, causing the body to stiffen?

Rigor mortis

What is the initial state of the muscles immediately after death?

General muscle flaccidity

What causes the formation of lactic acid in the muscles after death?

RM (rigor mortis)

What is rigor mortis and how does it develop in the body?

Rigor mortis is the stiffening of muscles after death due to the breakdown of ATP. It develops in the body within 4-12 hours after death, starting with smaller muscle groups and progressing to larger ones. Signup and view all the answers

What factors can influence the period of rigor mortis development?

Environmental temperature is the most important factor. Other factors include the individual's body mass, physical activity before death, and diseases causing elevated body temperature. Signup and view all the answers

What is the criminalistic value of rigor mortis?

Rigor mortis can help estimate the time of death and determine if the body was moved after rigor mortis had developed. Signup and view all the answers

What is the difference between rigor mortis and cadaveric spasm?

Rigor mortis is the stiffening of muscles after death, while cadaveric spasm is a much more intense and rare form of rigidity/stiffness in the body. Signup and view all the answers

What is cadaveric spasm and how is it identified?

Cadaveric spasm is a phenomenon where the muscles in the body remain in a tense state immediately after death and persist into the period of rigor mortis. It is identified when an object is clenched tightly in the hand and cannot be released through muscle manipulation. Signup and view all the answers

What are some circumstances in which cadaveric spasm has been documented?

Cadaveric spasm has been documented in cases of suicide where the weapon is tightly grasped in the hand, homicides where objects like buttons or hair are found clenched in the hand, drowning and mountain accidents where stones or branches are held tightly, and car, airplane, and train accidents where victims are found gripping objects like steering wheels or cell phones. Signup and view all the answers

How does cadaveric spasm relate to the circumstances of a person's death?

When cadaveric spasm is identified in a body, it provides important information about the circumstances under which a person died. For example, if a victim is thought to have committed suicide and the weapon is tightly held in their hand, it can be taken as sufficient proof of suicide. Signup and view all the answers

When does cadaveric spasm disappear and why?

Cadaveric spasm disappears when the full effect of decomposition sets in, which usually occurs after approximately 48 hours. This is because rigor mortis, including cadaveric spasm, is a temporary state that occurs before decomposition progresses. Signup and view all the answers