Chapter 7: Physical Developments of Infants

Skeletal System

The body system that includes that bones and teeth

Failure to Thrive

A condition in which an infant does not gain weight or grow as expected, potentially leading to serious health issues (should be gradual and continuous)

Body Proportions

The relative size of a baby’s body parts

Ossification

The process of bone hardening caused by depositing calcium and phosphorus

Deciduous Teeth

The first set of teeth that develop in infants which eventually fall out to make way for permanent teeth (baby teeth)

Motor Development

Use and control of muscles that direct body movements

Gross- Motor Skills

Ability to use large muscles to roll over, crawl, sit, stand and walk

Fine - Motor Skills

Ability to use smaller muscles for grasping, manipulating objects, and writing

Age Norm

Age range when children are commonly able to do certain tasks

Crawling

Moving by pulling with arms, however the abdomen is still on the floor

Creeping

Moving by arms and legs/knees, however abdomen is off the floor

Cruising

Moving while holding onto furniture for support

Voluntary Grasping

The intentional grasping of objects