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PRENATAL DEVELOPMENT

PRENATAL DEVELOPMENT. PRENATAL DEVELOPMENT. STAGES 0-2 WEEKS GERMINAL PERIOD 2-3 WEEKS EMBRYO 4-5 WEEK IMPLANTATION 6-7 WEEKS PARTS VISIBLE 8-9 WEEKS FETUS 14 WEEKS LIMBS, NAILS 3”, 1 OZ. PRENATAL DEVELOPMENT. 18 WEEKS “ QUICKENING” 27 WEEKS EYES OPEN 32 WEEKS 16” LONG 3 LB. +

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PRENATAL DEVELOPMENT

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  1. PRENATAL DEVELOPMENT

  2. PRENATAL DEVELOPMENT • STAGES • 0-2 WEEKS GERMINAL PERIOD • 2-3 WEEKS EMBRYO • 4-5 WEEK IMPLANTATION • 6-7 WEEKS PARTS VISIBLE • 8-9 WEEKS FETUS • 14 WEEKS LIMBS, NAILS 3”, 1 OZ.

  3. PRENATAL DEVELOPMENT • 18 WEEKS “ QUICKENING” • 27 WEEKS EYES OPEN • 32 WEEKS 16” LONG 3 LB. + • 36 WEEKS 18”, 5 LB, 4OZ • 39 WEEKS FULL TERM • NEWBORN • 7 POUNDS 20” LONG

  4. NEW BORN THE NEONATE

  5. THE NEONATE • GENERAL INFORMATION • PHYSICAL • 20”, 7 POUNDS AT BIRTH • BOY’S 4% HEAVIER, 2% TALLER • PREMATURE IF LESS THAN 5.5 LBS. • EARLY GROWTH • HEAD 25% OF BODY LENGTH AT BIRTH • 1ST 6 MONTHS FILLING OUT • ONLY SLIGHT CHANGES IN PROPORTION

  6. NEONATE • 6 MONTHS ON • SLOW HEAD GROWTH • RAPID LIMB GROWTH • INTERMEDIATE TRUNK GROWTH • EFFECT ON MOTOR DEVELOPMENT • AGE 2 • LOWER LIMB=TRUNK LENGTH • HEAD 18% OF BODY

  7. REFLEXES • MORO REFLEX “STARTLE” • GENERAL RESPONSE TO STIMULI • LOUD NOISE • LIGHT • GRASP • PREHENSILE TO 3.5 MONTHS • STRONG, REFLEXIVE • PREHENSIVE AFTER 3.5 MONTHS • VOLUNTARY GRASP

  8. REFLEXES • BABINSKI SIGN • CHECK FOR NEUROLOGICAL • STROKE SOLE OF FOOT • RESPONSE

  9. OTHER CONCEPTS • CRITICAL PERIODS • SENSITIVE TIMES • IF EXPOSED TO BEHAVIOR AT THIS TIME PROBABLY WILL LEARN • SMILE 5-14 WEEKS • READINESS • IN CONJUNCTION WITH CRITICAL PERIOD. “ PREREQUISITE “ SKILL

  10. PRENATAL DEVELOPMENT • 18 WEEKS QUICKENING

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