This is considered a heart attack. The blood flood that brings oxygen to the heart is cut off.
It is located in the skin blinds the outer layers of the skin to the muscles beneath
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils. Hope this helps.
The subject matter of prehistoric art concentrates in sources of food and procreation.
