Causes of Ankle Pain. 1  Ankylosing Spondylitis Ankylosing spondylitis is a type of arthritis that causes chronic inflammation of the spine. 2  Arthritis Arthritis is inflammation of one or more joints. 3  Broken Bone (Types of Bone Fractures) A broken bone is a fracture.
Down syndrome is a chromosomal condition that is associated with intellectual disability, a characteristic facial appearance, and weak muscle tone (hypotonia) in infancy. All affected individuals experience cognitive delays, but the intellectual disability is usually mild to moderate.
Down syndrome is a condition in which a person has an extra chromosome. Chromosomes are small âpackagesâ of genes in the body. They determine how a babyâs body forms during pregnancy and how the babyâs body functions as it grows in the womb and after birth. Typically, a baby is born with 46 chromosomes.Babies with Down syndrome have an extra copy of one of these chromosomes, chromosome 21. A medical term for having an extra copy of a chromosome is âtrisomy.â Down syndrome is also referred to as Trisomy 21.ypically, a baby is born with 46 chromosomes. Babies with Down syndrome have an extra copy of one of these chromosomes, chromosome 21. A medical term for having an extra copy of a chromosome is âtrisomy.â Down syndrome is also referred to as Trisomy 21.