Research and summarise the sympathetic and parasympathetic system

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Presentation transcript:

Research and summarise the sympathetic and parasympathetic system

Too hot or too cold … What responses does the body have to temperature? How does it respond when it is too hot? How does it respond when it is too cold?

How temperature is controlled in the long term… The hormone thyroxine increases the metabolic rate and increases heat production. Thyroxine secreted by the thyroid gland. When the hypothalamus detects a drop in temperature it secretes thyrotrophin releasing hormone (TRH) TRH stimulates the production of thyroid stimulating hormone (TSH) which stimulates the production of thyroxine. Thyroxine results in the production of more mitochondria. This leads to a greater rate of respiration and more heat being released. This method takes a lot of time and tends to take place over a couple of days.

Task How is temperature measured? How is hypothermia detected and treated? What are the symptoms of hyperthermia?

Define the following: Effector Receptor Negative Feedback Autonomic Sympathetic Parasympathetic

Answer Q’s 1-4 on p.239