Question: What is rigor mortis primarily caused by?
Options:
Depletion of ATP
Bacterial activity
Dehydration of tissues
Increased body temperature
Correct Answer: Depletion of ATP
Solution:
Rigor mortis occurs due to the depletion of ATP, which is necessary for muscle relaxation.
What is rigor mortis primarily caused by?
Practice Questions
Q1
What is rigor mortis primarily caused by?
Depletion of ATP
Bacterial activity
Dehydration of tissues
Increased body temperature
Questions & Step-by-Step Solutions
What is rigor mortis primarily caused by?
Step 1: Understand that rigor mortis is a condition that happens after death.
Step 2: Know that muscles need a substance called ATP (adenosine triphosphate) to relax.
Step 3: After death, the body stops producing ATP.
Step 4: Without ATP, muscles cannot relax and they stay stiff.
Step 5: This stiffness in the muscles is what we call rigor mortis.
Rigor Mortis – Rigor mortis is the postmortem stiffening of muscles due to biochemical changes in muscle tissue.
ATP Depletion – ATP (adenosine triphosphate) is essential for muscle contraction and relaxation; its depletion leads to sustained muscle contraction.
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