Category: A

A virus transmitted by blood-sucking insects. Large group of viruses that grow in both mammals and in insects such as mosquitos and ticks. Cause viral encephalitis and yellow fever. One of a group of RNA-containing viruses that are transmitted from animals to man by insects (i.e. arthropods; hence arthropod- borne viruses) and cause diseases resulting…

The structure of the cerebellum or of the uterus which looks like a tree. A treelike structural outline seen in the cerebellum which is visible on computerized tomography scans and other imaging studies.  

The branching ends of some nerve fibres, of a motor nerve in muscle fibre or of venules, capillaries and arterioles. Ramification; branching, especially terminal branching of nerve fibers and capillaries.  

Plural noun villi in the arachnoid which absorb cerebrospinal fluid.  

An inflammation of the arachnoid membrane that covers the brain and spinal cord (usually involving the lumbar spine). Arachnoiditis may be caused by infection (such as bacterial infections, syphilis, or tubular meningitis) or trauma (such as from surgery, a lumbar puncture, spinal anesthesia, or myelography). This debilitating condition is characterized by intractable pain and neurological…

A congenital condition in which the fingers and toes are long and thin. Congenital condition in which the fingers and/or toes are long, thin, and spiderlike. Abnormally long and slender fingers and toes: usually associated with excessive height and congenital defects of the heart and eyes in Marfan ‘s syndrome. Arachnodactyly, or marfan’s syndrome, is…

Poisoning by the bite of a spider. Toxins from the less venomous species of spider cause only local pain, redness, and swelling. Toxins from more venomous species, such as the black widow (Lactrodectus mactans), cause muscular pains, convulsions, nausea, and paralysis. Systemic poisoning from a spider bite.  

No longer having any fever.  

The absence of fever.