Prenatal Development Growing fetus Reflexes Senses By Drina Madden www.ndcbrain.com 1
Prenatal Development The beginning of life www.ndcbrain.com 2
Prenatal Development The period of the embryo 28 days 36 days www.ndcbrain.com 3
Prenatal Development The period of the embryo 48 days 54 days www.ndcbrain.com 4
Prenatal Development The period of the fetus Eleventh Week www.ndcbrain.com 5
Prenatal Development Fetus - 24 weeks www.ndcbrain.com 6
Fetus 8 months www.ndcbrain.com 7
Prenatal Development www.ndcbrain.com 8
Reflexes First responses 5 weeks after conception Upper lip touch = withdrawal response Few days later Sensitivity has spread to palms and soles of feet Before 9 weeks Sensitivity has spread to whole body www.ndcbrain.com 9
Reflexes 9 weeks in utero Withdrawal reactions lessen Primitive reflexes appear Neural development determines timing Appearance Inhibition www.ndcbrain.com 10
Reflexes Primitive Reflexes Insure protection outside the womb Automatic, stereotyped movements directed from the brain stem No cortex involvement www.ndcbrain.com 11
Reflexes Primitive Reflexes Essential for survival in first 2 weeks of life Lay foundation for all later functioning If remain after 6 12 months = brain development weaknesses or immaturity www.ndcbrain.com 12
Reflexes Primitive Reflexes brain stem dominated Rooting Reflex searching sucking and swallowing Moro or Startle Reflex response to outside stimuli www.ndcbrain.com 13
Reflexes Primitive Reflexes Asymmetrical Tonic muscle tone, vestibular awareness Palmar grasp reflex www.ndcbrain.com 14
Reflexes Postural Reflexes Form the framework for effective operation of other systems Posture Movement Stability www.ndcbrain.com 15
Reflexes Postural Reflexes - rolling Neck Righting Reaction Labyrinth Righting Reaction www.ndcbrain.com 16
Brain Development Connections grow through nature and nurture www.ndcbrain.com 17
Brain Development Heredity and experiences increase connections www.ndcbrain.com 18
Brain Development Electrical activity increases with brain growth gained through experience www.ndcbrain.com 19
Brain Development As the body grows the brain grows www.ndcbrain.com 20
Brain Development The lower brain attention and mood www.ndcbrain.com 21
The Senses Touch begins in utero www.ndcbrain.com 22
The Senses Vestibular balance and awareness in space www.ndcbrain.com 23
The Senses Hearing begins in utero and strongly connects to neonatal life www.ndcbrain.com 24
The Senses Taste begins to connect at birth www.ndcbrain.com 25
The Senses Vision is the last sense to complete its journey In time, sharing occurs www.ndcbrain.com 26
The Senses Vision connects with language and perception www.ndcbrain.com 27
The Senses Language needs receiving and sending www.ndcbrain.com 28
After Birth Attention and mood govern development Each of the brain lobes grows separately. Connections begin to reach to other lobes The child s brain grows in awareness and flexibility www.ndcbrain.com 29