TSH = Thyroid Stimulating Hormone - Causes production and release of thyroxine from thyroid gland, FSH = Follicle Stimulating Hormone - Stimulates follicle to develop in the ovary, Promotes maturation of sperm in male, LH = Luteinising Hormone - Causes ovulation and development of corpus luteum, ACTH = Adrenocorticotrophic Hormone - Regulates production of glucocorticoids, GH = Growth Hormone - Stimulates cell growth & protein production, Prolactin - Stimulates milk production, ADH = Antidiuretic Hormone - Increases water reabsorption by the kidney, Oxytocin - Causes uterine contraction during parturition, Thyroxine - Regulates speed of body reactions, Calcitonin - Reduces calcium levels in blood by increasing store in bone, Parathyroid Hormone - Increases the level of calcium in blood by: mobilising it from bone, increasing absorption of it from intestines and reducing loss of it in urine, Adrenaline - Prepares the body for action: Increases heart rate & blood pressure. Increases blood glucose. Diverts blood to muscles and lungs. , Glucocorticoids (e.g. Cortisol) - Stress hormones involved in stress responses, Mineralocorticoids - Controls the amount of minerals (e.g. sodium) excreted by the kidneys, Adrenal sex hormones - This is one of the reasons why castrated male dogs still mount, Insulin - Reduces blood sugar level, Glucagon - Raises blood sugar level, Somatostatin - Prevents massive changes in blood sugar level occurring, Oestrogen - Behavioural signs of oestrus, Progesterone - Maintains pregnancy, Relaxin - Relaxes birth canal prior to birth, Testosterone - Needed for sperm production, causes secondary male characteristics, Gastrin - Triggers release of stomach acid in response to food, Secretin - Causes release of digestive enzymes in response to food, Chorionic Gonadotrophin - Helps to maintain the corpus luteum during pregnancy in some species,

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