Physical Development

Physical development:

 The growth and development of the body’s muscles, bones, energy systems, and the nervous system

Cognitive development: An individual’s ability to interpret and process information; emotional development, or the development of person’s self-concept or awareness of one’s self.
Motor or skills development: a combination of cognitive and physical development, whereby humans develop the ability to perform a wide range of tasks
Social development: the development of relationships with peers, friends, relatives, adults, and others in the outside world
Chronological age: age measured in years, months and days; that is, the standard use of the term.
Skeletal age: age as indicated by the physical maturity of the skeleton; that is the degree of ossification of bones, usually measured by an x-ray of the hand and wrist. Standard skeletal ages can be predicted and charted according to chronological age, but a number of factors – including nutrition and diet, disease and major bone injuries – can cause a person’s skeletal age to lag behind their chronological age.
Developmental age: Age as expressed in one’s ability to perform certain tasks; that is when someone says something like, he’s a seven year old kid with the tennis serve of a teenager, they are making a rough distinction between a youngster’s chronological and developmental ages.
Morphology: a term that helps classifies both people’s appearance and physical structure.
  * Endomorphic type: more fatty tissue and thicker body parts.
  * Mesomorphic type: stocky, heavily muscled, and broader bodies.
  * Ectomorphic type: thinner body, characterized by narrow hips and longer legs and arms.