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 Thermoregulation Describe how the body maintains a constant core temperature of 37°C. Spec 4.5.1 5 The Endocrine System Describe the endocrine system, the main glands and hormones, and compare hormonal with nervous communication. Spec 4.5.3 6 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 7 Human Reproduction and Hormones Describe puberty, the menstrual cycle and the hormones that control human reproduction. Spec 4.5.4 8 Contraception and Fertility Treatment Describe methods of contraception and fertility treatments including IVF. Spec 4.5.4 9 Reaction Time Describe how to measure reaction time and explain what affects it. Spec 4.5.2 10 The Brain Describe the structure of the brain, the functions of its main regions and how the brain is studied. Spec 4.5.2.4 11 The Eye Describe the structure of the eye and the function of each part. Spec 4.5.2.5 12 Defects of the Eye Describe the causes of long-sight and short-sight and how they are corrected. Spec 4.5.2.6