Homeostasis and Response

1 Homeostasis Define homeostasis and explain how negative feedback maintains a stable internal environment. Spec 4.5.1 2 The Human Nervous System Describe the structure and function of the nervous system, neurones and synapses. Spec 4.5.2 3 Reflex Actions Describe reflex actions, the reflex arc and why reflexes are faster than voluntary responses. Spec 4.5.2 4 The Endocrine System Describe the endocrine system, the main glands and hormones, and compare hormonal with nervous communication. Spec 4.5.3 5 Blood Glucose Control and Diabetes Describe how insulin and glucagon regulate blood glucose, and explain Type 1 and Type 2 diabetes. Spec 4.5.3 6 Human Reproduction and Hormones Describe puberty, the menstrual cycle and the hormones that control human reproduction. Spec 4.5.4 7 Contraception and Fertility Treatment Describe methods of contraception and fertility treatments including IVF. Spec 4.5.4 8 Reaction Time Describe how to measure reaction time and explain what affects it. Spec 4.5.2