Health Sciences 2700A/B Lecture : Lecture 4

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Heredity and hormones: growth hormone (gh, thyroid-stimulating hormone. necessary for brain development and for gh to have full impact on body size. Role of the ecological system in relation. Appetite decreases because growth slows down: vary meal to meal. 98% live in developing countries: 70% are from infectious disease. Diarrhea a danger oral rehydration therapy and zinc can help. In canada, less than 7% do not receive full immunization. Gross motor skills: balance improves, center of gravity shifts downwards, gait smooth and rhythmic by age 2, upper- and lower-body skills combine into more refined actions by age 5. 1: greater speed and endurance, fine motor skills, linked with control of hands and fingers, self-help: dressing, eating, drawing. First representational forms: label already made drawings at around age 3, draw boundaries and people (3-4) More realistic drawings (preschool to school age) Boys excel in most gross motor skills.

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