Explanation of terms in definition of Cerebral Palsy (CP)

CerebralReferring to the cerebrum, the front and upper part of the brain, one of the major areas responsible for the control of movement.
PalsyPalsy means paralysis, though paralysis by pure definition is not a feature of CP.
GroupCP is not a single condition, unlike conditions such as type 1 diabetes. Rather, CP is a group of conditions. The location, timing, and type of brain injury vary, and the resulting effects of the brain injury are also varied. A simple blood test for glucose confirms a diagnosis of type 1 diabetes. A genetic test confirms Down syndrome. Unfortunately, there is no equivalent single test for CP.
PermanentRefers to the fact that the brain injury remains for life: CP is a lifelong condition.
DisordersA disorder is a disruption in the usual orderly process. To meet the definition of CP, the disorder must cause activity limitation.
PostureThe way a person holds their body when standing or sitting.
Activity limitationActivity is the execution of a task or action by an individual. Activity limitations are difficulties an individual may have in executing activities. Walking with difficulty is an example of an activity limitation.
Non-progressiveThe brain injury does not worsen, but its effects can develop/evolve over time.
Developing fetal or infant brainThe brain injury occurs in an immature, rather than a mature, brain. An injury to the fetal or infant brain happens before the brain is finished developing all of its neural connections.
Motor disordersMotor disorders are conditions affecting the development of movement and posture. The term motor impairment can also be used.
Are often accompanied byThe motor problem is often associated with other problems.
Sensation, perception, cognition, communication, and behaviorSensation: Refers to the senses, i.e., vision, hearing, and others.   Perception: The ability to incorporate and interpret sensory and/or cognitive information.   Cognition: The mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.   Communication: The imparting or exchanging of information.   Behavior: The way one acts or conducts oneself.
EpilepsyEpilepsy is a seizure disorder. A seizure is an abnormal electrical discharge in brain cells that disrupts normal activity, behavior, or movement. Seizures can vary in length and severity.
Secondary musculoskeletal problemsMusculoskeletal refers to both the muscles and the skeleton, i.e., the muscles, bones, and joints. Musculoskeletal problems appear with time and growth, hence they are termed secondary problems or abnormalities. They develop as a consequence of the brain injury. People with CP may develop a variety of musculoskeletal problems, such as muscle/tendon contracture or bone torsion (twist).