Related Experiment Video
Updated: Jun 16, 2026

Non-invasive Skeletal Muscle Quantification in Small Animals Using Micro-computed Tomography
Published on: November 8, 2024
Study of the normal internal organ weights in Tehran's population
Ardeshir Sheikhazadi1, Seyed Shahabeddin Sadr, Mohammad Hasan Ghadyani
1Department of Forensic Medicine, School of Medicine, Tehran University of Medical Sciences, Iran. ardeshirsheikhazadi@yahoo.com
Objective:
Examine the normal adult internal organ weight and its relationship with body height, body weight, body mass index and age.
Materials And Methods:
Prospective analysis of data from 1222 autopsies in Legal Medicine Organization of Iran from 1st January, 2007 to 1st September, 2008. All the subjects were adult residents of Tehran died from external causes and showed no pathological changes.
Results:
The weight of the brain, heart, lungs, liver, spleen, pancreas, kidneys, thyroid gland, the pituitary gland, the suprarenal glands, testes, prostate, ovaries and the uterus were collected from 914 males and 308 females between 15 and 88 years. The weight of all the organs was correlated statistically with at least one external parameter with the exception of the pancreas in men, the uterus, the spleen and the thyroid in women. Organ weights decreased with age except for the heart and the prostate, and increased in relation to body height and/or BMI. Except for the brain, the organ weight showed a better statistical correlation with the BMI than the body height.
Conclusion:
These results can be used as standard organ weights to determine abnormal evidences in Forensic and Pathologic corpses. However such results have to be regularly updated by pathologists in order to keep organ weight as a good criterion used in postmortem diagnosis.
Related Concept Videos
Mass and Weight
Mass and Weight
Central Limit Theorem
The sample size, n, that...
Regression Toward the Mean
Gross Anatomy of the Liver
Located under the diaphragm, the liver is almost entirely ensconced within the rib cage, providing it with substantial protection. Except for the superior most bare area, the liver's surface is covered...
Internal Forces and Center of Gravity
Internal forces are generated within a body due to the interaction between its particles. These forces can be categorized into tension, compression, and...
