Human Development (ch 5)- peds Flashcards
What is normal gestational period?
38-42 weeks
Conceptual age =
age of a fetus or newborn in weeks since conception
Sensorimotor Development in each trimester:
Muscle spindle
1st- muscle starts to differentiate; tissue becomes specialized-
2nd- motor end plate forms; clonus response to stretch
3rd- some muscles are mature and functional, others still maturing
Sensorimotor Development in each trimester:
Touch and tactile system
1st- *first sensory system to develop! Response to tactile stimulus
2nd- receptors differentiate
3rd- touch functional; actual temp discrimination at the end of 3rd trimester; most mature sensory system at birth
Sensorimotor Development in each trimester:
Vestibular system
1st- functioning at the end of first trimester (not completely developed).
(no more!)
Sensorimotor Development in each trimester:
Vision
1st- eyelids fused; optic nerve and cup being formed
2nd- startle to light; visual processing occurs
3rd- fixation occurs; able to focus (fixed focal length)
Sensorimotor Development in each trimester:
Auditory
2nd- Will turn to auditory sounds
3rd- debris in middle ear, loss of hearing
Sensorimotor Development in each trimester:
Olfactory
3rd- nasal plugs disappear, some olfactory perception
Sensorimotor Development in each trimester:
Taste
1st- taste buds develop
3rd- Can respond to different tastes (sweet, sour, bitter, salt)
Sensorimotor Development in each trimester:
Movement
1st- sucking, hiccuping; fetal breathing; quick generalized limb mvmt; positional changes; 7.5 weeks can bend neck and trunk away from perioral stroke
2nd- quickening; sleep states; grasp reflex; reciprocal and symmetrical limb mvmts
3rd- 28 weeks primitive motor reflexes; rooting, suck, swallow; palmar grasp; plantar grasp; MORO; crossed extension
Development of Sensorimotor Integration:
Prenatal period
- responds first to tactile stimuli
- reflex development
- innate tactile, proprioceptive, and vestibular reactions.
Development of Sensorimotor Integration:
Neonatal period
- tactile, proprioceptive, and vestibular inputs are critical from birth onward for the eventual development of body scheme
- vestibular system, although fully developed at birth, continues to be refined and impacts infant’s arousal level (helps infant to feel more organized/content.)
- visual system develops as infant responds to faces and items of high contrast w/in 10 inches of face.
- auditory system is immature at birth and develops as the infant orients to voices and other sounds.
Development of Sensorimotor Integration:
First 6 months
- vestibular, proprioceptive, and visual systems become more integrated and lay foundation for postural control, facilitating a steady visual field
- tactile and proprioceptive systems continue to be refined, laying foundation for somatosensory skills
- visual and tactile systems become more integrated as child reaches and grasps objects, laying foundation for eye-hand coordination
- infant movement patterns progress from reflexive to voluntary and goal-directed
Development of Sensorimotor Integration:
6-12 months
- vestibular, visual, and somatosensory responses increase in quantity/quality as infant becomes more mobile.
- tactile and proprioceptive perceptions more refined, allowing for dev of fine motor and motor planning, and lead to midline skills and crossing midline.
- auditory, tactile, and proprioceptive perceptions are heightened allowing for dev of sounds for the purpose of communicating.
- tactile, proprioceptive, gustatory, and olfactory perceptions are integrated, allowing for primitive self-feeding.
Development of Sensorimotor Integration:
13-24 months
- tacticle perception becomes more precise allowing for discrimination and localization to further refine fine motor skills
- further integration of all systems promotes complexity of motor planning as the toddler’s repertoire of mvmt patterns expands.
- symbolic gesturing and vocalization promotes ideation, indicating the ability to conceptualize.
- Motor planning abilities contribute to self concept as toddler begins to master environment.
Development of Sensorimotor Integration:
2-3 years
- period of refinement as the vestibular, proprioceptive, and visual systems further develop, leading to improved balance and postural control.
- further dev of tactile discrimination and localization leading to improved fine motor skills
- motor planning and praxis ideation also progress during this period.
Development of Sensorimotor Integration:
3-7 years
- child is driven to challenge sensorimotor competencies through roughhouse play, playground activities, games, sports, music, dance, arts/crafts, househodl chores, and school tasks.
- child also learns social development and self esteem through these activities.
Reflexes (onset age, integration age, stimulus, response, relevance):
Rooting
onset 28 weeks gestation
integration 3 months
stimulus- stroke the corner of the mouth, upper lip, and lower lip
response- mvmt of tongue, mouth, and/or head toward stimulus
relevance- allows searching for and locating feeding source
Reflexes (onset age, integration age, stimulus, response, relevance):
Suck-swallow
onset 28 weeks gestation
integration 2-5 months
stimulus- place you index finger inside infant’s mouth with head in midline
response- strong rhythmical sucking
relevance- allows ingestion of nourishment
Reflexes (onset age, integration age, stimulus, response, relevance):
Traction
onset 28 weeks gestation
integration 2-5 months
stimulus- grasp infant’s forearms and pull-to-sit
response- complete flexion of upper extremities
relevance- enhances momentary reflexive grasp
Reflexes (onset age, integration age, stimulus, response, relevance):
Moro
onset 28 weeks gestation
integration 4-6 months
stimulus- rapidly drop infant’s head backward
response- 1st: arm extension/abduction, hand opening. 2nd: arm flexion and adduction
relevance- facilitates ability to depart from dominant flexor posture: protective response
Reflexes (onset age, integration age, stimulus, response, relevance):
Plantar grasp
onset 28 weeks gestation
integration 9 months
stimulus- apply pressure with thumb on the infant’s ball of the foot
response- toe flexion
relevance- increases tactile input to the sole of foot
Reflexes (onset age, integration age, stimulus, response, relevance):
Galant
onset 32 weeks gestation
integration 2 months
stimulus- hold infant in prone suspension, gently scratch or tap alongside the supine with finger, from shoulders to butt
response- lateral trunk flexion and wrinkling of the skin on the stimulated side
relevance- facilitates lateral trunk mvmts necessary for trunk stabilization
Reflexes (onset age, integration age, stimulus, response, relevance):
Asymmetric tonic neck
onset 37 weeks gestation
integration 4-6 months
stimulus- fully rotate infant’s head and hold for 5 seconds
response- extension of extremities on the face side, flexion of extremities on the skull side
relevance- promotes visual hand regard