Category: N
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Negative pressure ventilation
Mechanical support of respiration using chambers that encase the body to create intermittent subatmospheric pressure to extend the chest outward and fill the lungs.
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Necropsy
Examination of a body to determine the cause of death; autopsy. An infrequently employed medical expression referring to a postmortem examination of a body, commonly known as an autopsy.
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Nasal ala
Flared cartilage on each side of the nostril.
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Melenic
Having the characteristic of dark, tarry stools.
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Nuchal cord
Condition in which the umbilical cord is wrapped around the neck of the baby as it is being born. It most cases it can be slipped over the child’s head or cut without harm to the child. The condition in which the umbilical cord is found wrapped around the neck of the fetus during delivery.…
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Nucha
Nape, or back of the neck.
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Notomelus
Congenital abnormality in which one or more accessory limbs are attached to the back. A deformed fetus with one or more accessory limbs attached to the back.
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Nose
Structure on the face that serves as a passageway for air into and out of the lungs and as an organ of smell. The facial structure that is the main organ of smell and the primary opening into the respiratory system. The supporting bones of the nose, the nasal bones, protrude from the skull. The…
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Norgestrel
Progestin used in oral contraceptives.
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Norethindrone
Progestin compound used in oral contraceptives and in the treatment of endometriosis and abnormal uterine bleeding. Adverse effects include gastrointestinal upsets, breast changes, and irregular uterine bleeding.