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Self-harm is intentional conduct that is considered harmful to oneself. This is most commonly regarded as direct injury of one's own skin tissues, usually without suicidal intention. [1][2][3] Other terms such as cutting, self-injury, and self-mutilation have been used for any self-harming behavior regardless of suicidal intent. [2][4] Common ...
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
Snakebite. A snakebite is an injury caused by the bite of a snake, especially a venomous snake. [9] A common sign of a bite from a venomous snake is the presence of two puncture wounds from the animal's fangs. [1] Sometimes venom injection from the bite may occur. [3] This may result in redness, swelling, and severe pain at the area, which may ...
Malaria is a mosquito-borne infectious disease that affects vertebrates. [ 6 ][ 7 ][ 3 ] Human malaria causes symptoms that typically include fever, fatigue, vomiting, and headaches. [ 1 ][ 8 ] In severe cases, it can cause jaundice, seizures, coma, or death. [ 1 ][ 9 ] Symptoms usually begin 10 to 15 days after being bitten by an infected Anopheles mosquito. [ 10 ][ 4 ] If not properly ...
Hippopotamus. The hippopotamus (Hippopotamus amphibius) (/ ˌhɪpəˈpɒtəməs /; pl.: hippopotamuses; , also shortened to hippo (pl.: hippos), further qualified as the common hippopotamus, Nile hippopotamus, or river hippopotamus, is a large semiaquatic mammal native to sub-Saharan Africa. It is one of only two extant species in the family ...
The most common method of tattooing in modern times is the electric tattoo machine, which inserts ink into the skin via a single needle or a group of needles that are soldered onto a bar, which is attached to an oscillating unit. The unit rapidly and repeatedly drives the needles in and out of the skin, usually 80 to 150 times a second.
Rodent groups differ in the arrangement of the jaw muscles and associated skull structures, both from other mammals and amongst themselves. The Sciuromorpha, such as the eastern grey squirrel, have a large deep masseter, making them efficient at biting with the incisors.
The Nightmare Before Christmas (also known as Tim Burton's The Nightmare Before Christmas) is a 1993 American stop-motion animated musical fantasy film directed by Henry Selick in his feature directorial debut and produced and conceived by Tim Burton. It tells the story of Jack Skellington, the King of " Halloween Town," who stumbles upon " Christmas Town" and schemes to take over the holiday ...