HLSC 2P09 Lecture 2: lecture 2 HLSC2P09
17 Jan 2017
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Homeostasis ** essay type question: maintenance of static, or constant conditions of the internal environment (meaning. Ecf: is of major importance and all functions of the body are regulated to achieve homeostasis. Feedback control mechanisms: control mechanisms involved in the regulation of body functions to maintain homeostasis, negative feedback control mechanisms: oppose a change by creating a response that is opposite to the initial disturbance ( rst gure) We have mechanisms that help maintain our 37 degree body temp, control blood glucose levels. Ie; know the neg feedback for temperature increase/decrease **know details*: positive feedback control mechanisms: accelerate a change (second gure) Cervical stretch caused by the baby"s head causes the uterus to contract. Contraction of the uterus stretches the cervix still more and the cycle goes on . Cervical stretch caused by the baby"s head causes the release of oxytocin by the pituitary which acts to increase contraction of the uterus and the cycle continues .
