However, the two parts of a binomial name can each be derived from a number of sources, of which Latin is only one. These include: 1  Latin, either classical or medieval. 2  Thus both parts of the binomial name Homo sapiens are Latin words, meaning wise (sapiens) human/man (Homo).
Juvenile rheumatoid arthritis (JRA), often referred to by doctors today as juvenile idiopathic arthritis (JIA), is a type of arthritis that causes joint inflammation and stiffness for more than six weeks in a child aged 16 or younger.It affects approximately 50,000 children in the United States.uvenile rheumatoid arthritis (JRA), often referred to by doctors today as juvenile idiopathic arthritis (JIA), is a type of arthritis that causes joint inflammation and stiffness for more than six weeks in a child aged 16 or younger. It affects approximately 50,000 children in the United States.
Symptoms. The most common signs and symptoms of juvenile rheumatoid arthritis are: 1  Pain. 2  While your child might not complain of joint pain, you may notice that he or she limps â especially first thing in the morning or after a nap.3  Swelling. 4  Joint swelling is common but is often first noticed in larger joints like the knee.ymptoms. The most common signs and symptoms of juvenile rheumatoid arthritis are: 1  Pain. 2  While your child might not complain of joint pain, you may notice that he or she limps â especially first thing in the morning or after a nap.