List Diseases – M
Learning disability is a synonym for the term "mental retardation" in the definitions of ICD-10 and DSM-IV. This classification is based on the coefficient of intellectual development (IQ), when the norm is taken as 100.
Menisci are fibro-cartilaginous formations of a semilunar form. On a cut have the form of a triangle. The thick edge of the meniscus is turned on the outside and fused with the capsule of the joint, and thinned - inside the joint. The upper surface of the meniscus is concave, and the lower surface is almost flat.
Meningitis is an inflammation of the membranes of the brain or spinal cord. Often the disease is infectious in nature and is one of the most common infectious diseases of the central nervous system.
In rare cases, meningitis develops without fever, which greatly complicates the diagnosis and may indicate disorders of the immune system.
The term "meningism" is a syndrome that occurs in some common infectious pathologies under the influence of irritation of the meninges. Meningism is characterized by such signs as headache, stiffness of the cervical muscles, an increase in intracranial pressure against the background of an unchanged composition of cerebrospinal fluid.