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Rigor mortis

is a recognizable sign of human death that is caused by a chemical change in the muscles, causing the limbs of the corpse to become stiff ("rigor") and impossible to move or manipulate. Typically rigor sets in several hours after clinical death and subsides spontaneously in about two days, though the time of its onset and duration depends on ambient temperature.
The biochemical cause of rigor mortis is hydrolysis of ATP in the muscle tissue, the chemical energy source required for movement. Myosin molecules devoid of ATP become permanently adherent to actin filaments and muscles become rigid.

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  1. The Emilio Aguinaldo College School of Medicine was founded and established by Dr. Paulo C. Campos, a National Scientist in Nuclear Medicine. It was formally opened on July 23, 2001 with 24 enrollees. Dr. Salvador R. Salceda, an ophthalmologist, became the first Dean (2001-2003), followed by a gastroenterologist, Dr. Esteban P. Pineda (2003-2010), and a surgical oncologist, Dr. Conrado C. Cajucom (2010-2013). The fourth and present Dean is Dr. Asuncion L. Abaya-Morido, a general surgeon and the former Hospital Director of Medical Center Manila, now known as the Manila Med.

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  2. The Davao Medical School Foundation Inc. (DMSFI) was established in July 1976 in response to the recognition of the lack of doctors serving rural communities and lack of specialist in urban centres of Mindanao. Its College of Medicine was thus the first such college to be set up in Mindanao and is dedicated to providing medical education and training of the highest order, leading to the provision of effective medical care in both rural and urban communities.

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