Category: C

The chronic ingestion or inhalation of lead, damaging the central and peripheral nervous systems, kidneys, the blood-forming organs, and the gastrointestinal tract. Early symptoms include loss of appetite, weight loss, anemia, vomiting, fatigue, weakness, headache, lead line on gums, apathy or irritability, and a metallic taste in the mouth. Later, symptoms of paralysis, sensory loss,…

Toxicity caused by excess chromium (e.g., in mining, welding, or pigment manufacturing). It may cause contact dermatitis, skin burns, or lung, liver, or kidney damage. Treatment after ingestion consists of gastrointestinal irrigation followed by forced diuresis and alkalinization of urine.  

Toxic effects due to prolonged inhalation of carbon tetrachloride. Consequences include irritation of the eyes, nose, and throat, headache, confusion, central nervous system depression, visual disturbances, nausea, anorexia, hepatitis, nephropathy, and cardiac arrhythmias.  

Toxicity from carbon dioxide inhalation. In small quantities (up to about 5%) in inspired air, C02 stimulates respiration in humans; in greater quantities it produces an uncomfortable degree of mental activity with confusion. Although not toxic in low concentrations, C02 can cause death by suffocation. Poisoning is rarely fatal unless exposure occurs in a closed…

The temperature above which no pressure may retain a substance in a liquid form.  

The temperature at or above which a gas is no longer liquefied by pressure.  

One of the fixed points of the skull used in craniometry.  

The point in the retina of each eye that, when stimulated simultaneously, results in a single visual sensation.  

The point to which rays of light converge.  

The point on a tooth that touches an opposed tooth.