NUTR 200 Lecture Notes - Lecture 36: Low Birth Weight, Umbilical Cord, Gestational Age
14 Jun 2020
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Vocabulary: placenta: organ for the exchange of nutrients and oxygen between mom and fetus; waste from fetus; connects to uterus, umbilical cord: provides nutrients and oxygen, removes waste. Second trimester: heartbeat detectable, growth from approx. 3 inches to over a foot long: deposition of 2-4 lb. breast tissue and fat tissue in mom for lactation. Iron supplied to fetus preferentially: crucial time for fetal growth, deposition of calcium and iron to the fetus during the last month, lungs mature, extensive brain development, weight increases 3 to 4 times. Birth weight and gestational age: low birth weight, undernourished mother is more likely to give birth to a low-weight baby, weighting less than 5. 5 lbs at birth, usually due to preterm births, small for gestational age. Changes the affect nutritional needs: heart works harder, higher blood volume, slower gi, fetus consumes primarily glucose and mom uses mostly fatty acids.
