Noun. 1. chordate-any animal of the phylum Chordata having a notochord or spinal column. animal, animate being, beast, creature, fauna, brute-a living organism characterized by voluntary movement. Chordata, phylum Chordata-comprises true vertebrates and animals having a notochord.cephalochordate-fish-like animals having a notochord rather than a true spinal column. tunicate, urochord, urochordate-primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva.hordata, phylum Chordata-comprises true vertebrates and animals having a notochord. cephalochordate-fish-like animals having a notochord rather than a true spinal column. tunicate, urochord, urochordate-primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva.
In more than half of all cases, rheumatic fever may affect the heart valves (rheumatic carditis) and interfere with normal blood flow through the heart. Even without treatment, though, only about three people out of every 10 who have a strep throat infection develop rheumatic fever.
It can affect any joint from the jaw, neck, shoulders, elbows, wrists, hands, fingers, lower back (ankylosing spondylitis), hips, groin, knees, ankles, feet and toes. In sever â¦ e cases it can also cause inflammation throughout the body such as inflammation of the body surrounding the heart and lungs.A is a systemic disease, that can also effect other tissues throughout the body including the skin, blood vessels, heart, lungs, and muscles. About 60% of RA patients are unable to work 10 years after the onset of their disease.