BSIP, KRASSOVSKY / SCIENCE PHOTO LIBRARY BSIP, KRASSOVSKY / SCIENCE PHOTO LIBRARY
Paediatric examination. Doctor examines the spine and muscle strength of a baby lying on its stomach in crawling posture. By 6 months, a baby can lift its head and chest, bearing this weight on its arms. A paediatrician may examine muscle tone and movement to check these are normal, and the spine for spinal bifida or other abnormality.
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