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Osteopetrosis, literally ' stone bone ', also known as marble bone disease or Albers-Schönberg disease, is an extremely rare inherited disorder whereby the bones harden, becoming denser, in contrast to more prevalent conditions like osteoporosis, in which the bones become less dense and more brittle, or osteomalacia, in which the bones soften ...
The human body is composed of approximately: 64% water, 20% protein, 10% fat, 1% carbohydrate, 5% minerals. [1] The decomposition of soft tissue is characterized by the breakdown of these macromolecules , and thus a large proportion of the decomposition products should reflect the amount of protein and fat content initially present in the body ...
A fresh pig carcass. At this stage the remains are usually intact and free of insects. The corpse progresses through algor mortis (a reduction in body temperature until ambient temperature is reached), rigor mortis (the temporary stiffening of the limbs due to chemical changes in the muscles), and livor mortis (pooling of the blood on the side of the body that is closest to the ground).
The placenta that is found in humans and other live-birth mammals came about from a distant common ancestor being infected with a virus some 150-200 million years ago, and evolution doing its thing.
The human skeleton of an adult usually consists of around 206 bones, depending on the counting of sternum (which may alternatively be included as the manubrium, body of sternum, and the xiphoid process). [1] It is composed of 270 bones at the time of birth, [2] but later decreases to 206: 80 bones in the axial skeleton and 126 bones in the ...
Examples of common causes in humans are traffic collisions and diving into shallow water. Abnormal movement of neck bones or pieces of bone can cause a spinal cord injury, resulting in loss of sensation, paralysis, or usually death soon thereafter (~1 min.), primarily via compromising neurological supply to the respiratory muscles and ...
Jabs and blows from a mantis shrimp can shatter clam shells and “slice human fingers to the bone.” ... that they use to break or crack open shells of other crustaceans to retrieve food and ...
The breakdown of the proteins of a decomposing body is a spontaneous process. Protein hydrolysis is accelerated as the anaerobic bacteria of the digestive tract consume, digest, and excrete the cellular proteins of the body. Putrefaction in human hands after several days of one of the Oba Chandler victims underwater in Florida, United States