What causes nose bleed?


Some causes of nosebleeds are certain medicines such as blood thinners, trauma, nose picking, living in dry cold or dry hot environments.

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Nose-picking is the act of extracting nasal mucus with one's finger (rhinotillexis) and the succeeding action of ingesting the mucus from the nose-picking (mucophagy). Some scientists argue that mucophagy provides benefits for the human body. Friedrich Bischinger, an Austrian doctor specializing in lungs advocates using fingers to pick and ingesting nasal mucus, states people who do so get "a natural boost to their immune system." The mucus contains a "cocktail of antiseptic enzymes that kill or weaken many of the bacteria that become entangled in it," so reintroducing the 'crippled' microorganisms "may afford the immune system an opportunity to produce antibodies in relative safety." However, this action is condemned in most cultures and societies which try to prevent development of the habit and attempt to break it if already established. Mucophagy is a source of mockery and entertainment in the media thus confirming the social scorn previously mentioned.

Nose-picking is an extremely widespread habit: some surveys indicate that it is almost universal, with people picking their nose on average about four times a day. A 1995 study into nose-picking, requesting information from 1,000 randomly selected adults, gathered 254 responses. It defined nose-picking as "the insertion of a finger (or other object) into the nose with the intention of removing dried nasal secretions". Of those who responded, 91% said they were current nose-pickers (but only 75% of these believed everyone did it) and two people claimed to spend between 15 and 30 minutes and between one and two hours a day picking their noses.

Anatomy Medicine Biology

Human anatomy (gr. ἀνατομία, "dissection", from ἀνά, "up", and τέμνειν, "cut") is primarily the scientific study of the morphology of the human body. Anatomy is subdivided into gross anatomy and microscopic anatomy. Gross anatomy (also called topographical anatomy, regional anatomy, or anthropotomy) is the study of anatomical structures that can be seen by the naked eye. Microscopic anatomy is the study of minute anatomical structures assisted with microscopes, which includes histology (the study of the organization of tissues), and cytology (the study of cells). Anatomy, human physiology (the study of function), and biochemistry (the study of the chemistry of living structures) are complementary basic medical sciences that are generally together (or in tandem) to students studying medical sciences.

In some of its facets human anatomy is closely related to embryology, comparative anatomy and comparative embryology, through common roots in evolution; for example, much of the human body maintains the ancient segmental pattern that is present in all vertebrates with basic units being repeated, which is particularly obvious in the vertebral column and in the ribcage, and can be traced from very early embryos.

The visible part of the human nose is the protruding part of the face that bears the nostrils. The shape of the nose is determined by the ethmoid bone and the nasal septum, which consists mostly of cartilage and which separates the nostrils. On average the nose of a male is larger than that of a female.

The nose has an area of specialised cells which are responsible for smelling (part of the olfactory system). Another function of the nose is the conditioning of inhaled air, warming it and making it more humid. Hairs inside the nose prevent large particles from entering the lungs. Sneezing is usually caused by foreign particles irritating the nasal mucosa, but can more rarely be caused by sudden exposure to bright light (called the photic sneeze reflex) or touching the external auditory canal. Sneezing is a means of transmitting infections because it creates aerosols in which the droplets can harbour microbes.

Nose Epistaxis

A medical emergency is an injury or illness that is acute and poses an immediate risk to a person's life or long term health. These emergencies may require assistance from another person, who should ideally be suitably qualified to do so, although some of these emergencies can be dealt with by the victim themselves.]citation needed[ Dependent on the severity of the emergency, and the quality of any treatment given, it may require the involvement of multiple levels of care, from first aiders to Emergency Medical Technicians and emergency physicians.

Any response to an emergency medical situation will depend strongly on the situation, the patient involved and availability of resources to help them. It will also vary depending on whether the emergency occurs whilst in hospital under medical care, or outside of medical care (for instance, in the street or alone at home).

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