Use a model to show where 4.5.3.6 HT: Negative Describe where and when 0.5 Identify organs on a model. Torso adrenaline and thyroxine are feedback. adrenaline is released and ABPI – produced, and their target its target organs. Adrenaline is organs. You & Your produced by the Describe the effects of Hormones – Research the effects of the two adrenal glands in adrenaline on the body. times of stress. It hormones on the body and Draw a diagram to explain increases heart present the findings in a suitable how levels of adrenaline are rate so oxygen format. Include diagrams to controlled by a negative and glucose are illustrate negative feedback feedback system. supplied to the mechanisms for each hormone. Describe where thyroxine is brain and muscles Use ABPI site and internet. produced and its effects on faster. Measure heart rate and/ or Investigate the effect of stress, the body. blood pressure as Thyroxine is and removal of stress, on heart indicators of stress. Relate Draw a diagram to explain produced by the rate. the changes to adrenaline how its release is stimulated thyroid gland. It secretion. by thyroid stimulating stimulates BMR hormone and the levels of and plays an these two hormones are important role in controlled by a negative physical and feedback system. mental development. Adrenaline and thyroxine secretions are controlled by negative feedback mechanisms.
4.5.3.6 HT: Negative feedback. Adrenaline is produced by the adrenal glands in times of stress. It increases heart rate so oxygen and glucose are supplied to the brain and muscles faster. Thyroxine is produced by the thyroid gland. It stimulates BMR and plays an important role in physical and mental development. Adrenaline and thyroxine secretions are controlled by negative feedback mechanisms. Describe where and when adrenaline is released and its target organs. Describe the effects of adrenaline on the body. Draw a diagram to explain how levels of adrenaline are controlled by a negative feedback system. Describe where thyroxine is produced and its effects on the body. Draw a diagram to explain how its release is stimulated by thyroid stimulating hormone and the levels of these two hormones are controlled by a negative feedback system. 0.5 Use a model to show where adrenaline and thyroxine are produced, and their target organs. Research the effects of the two hormones on the body and present the findings in a suitable format. Include diagrams to illustrate negative feedback mechanisms for each hormone. Use ABPI site and internet. Investigate the effect of stress, and removal of stress, on heart rate. Identify organs on a model. Measure heart rate and/ or blood pressure as indicators of stress. Relate the changes to adrenaline secretion. Torso ABPI – You & Your Hormones –
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