Nursing 1180A/B Chapter Notes - Chapter week 2: Epilepsy, Myelin, Glasgow Coma Scale
9 Dec 2016
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Changes in the hypothalamic-pituitary axis lead to elevated levels of estrogen, progesterone, prolactin, and oxytocin. Other changes are pressure on the peripheral nerves from the weight of fetus and postural changes. It is developed enough to maintain life primarily through reflexes. The ans is critical in this stage as it stimulates the first respiration, maintains ph levels, regulates temperature. Myelin sheaths are incomplete at birth; develops head to toes; centrally to peripherally. All cns are myelinated except the optic and olfactory. Myelination of the spinal cord is nearly complete at 2 years. Until age 4, the spinal cord continues to elongate. Brain growth is complete by age 4; various parts develop as children gain intellectual capacity. Head circumference has decreased in relation to height. Skull and brain grow very slowly in this period; most of the growth has been completed. Nourishing support cells for neurons grow in adolescents.
