1. Jesse Crow & Mary Francis Baxter

2.  Uses system of negative/positive feedback  Positive feedback is rare High levels of one hormone = release of another 2 nd hormones usually causes secretion decrease Hypothalamus releases inhibiting or stimulating hormones  Neg.-regulates secretion of hormones Most maintained at certain concentration  One cycle is thyroid Regulates energy consumption Protein production calcium level in blood

3.  Most organisms have an endocrine system if they have circulatory and nervous systems  Before endocrine, hormones were released by nervous system  Cells of nervous system eventually formed glands

5.  Nervous system responds to emotional stress  Hypothalamus-tissue of brain Registers info Sends messages to autonomic nervous system  Occurs in lower vertebrates/invertebrates

7. Hypothalamus Parathyroids Posterior pituitary Thymus Anterior pituitary Pancreas Thyroid Gonads Adrenal gland Pineal gland Hormones of the pancreas

8.  composed of amino acids  can range from 3-4 amino acids to entire polypeptide  example: insulin and ADH  Bind with receptor, work quickly  Change in cell’s enzymes

9.  Ring-shaped  Lipids made from cholesterol  Form in adrenal glands and gonads  Examples: oestrogens and progestins  Bind to nuclear receptors -enter DNA -transcribes target Genes

11. Diabetes Hyperthyroidism Cushings Syndrome

12.  Cause Pancreas doesn’t produce enough insulin Insulin normally carries sugar to blood for energy (metabolism)  Severe results: blindness, heart disease, and kidney failure  Type 1:loss of insulin  Type 2:insulin resistance  Symptoms: -frequent urination -increased thirst -increased hunger  Treatment-insulin injections

13.  Treatment: -Anti-thyroid medications -Radioactive iodine -Surgery to remove the thyroid  Symptoms: -Difficulty concentrating -Frequent bowel movements -fatigue -increased sweating and appetite  Causes Inflammation of thyroid gland Non-cancerous growths on thyroid Tumors on testes/ovaries Too much iodine

14.  ACTH(adrenocorticotrophin hormone)- producing pituitary tumor  causes overproduction of cortisol by the adrenal glands  Symptoms: Weight gain Sleep disturbance depression  Treatment options: removal of tumor

15. http://www.google.com/imgres?q=steroid+hormones&um=1&hl=en&safe=active&sa=N&biw=1280&bih=933&tbm=isch&tbnid=py Kz9KA72NttNM:&imgrefurl=http://163.16.28.248/bio/activelearner/47/ch47c1.html&docid=NBWmk1qyJfzsyM&imgurl=http://1 63.16.28.248/bio/activelearner/47/images/ch47c1.gif&w=432&h=307&ei=cmRwT5ayOozQgAeH_oVs&zoom=1&iact=hc&vpx= 182&vpy=440&dur=376&hovh=189&hovw=266&tx=126&ty=107&sig=104984583406905570724&page=2&tbnh=134&tbnw=189 &start=30&ndsp=36&ved=1t:429,r:0,s:30 http://www.sparknotes.com/testprep/books/sat2/biology/chapter9section1.rhtml http://fog.ccsf.cc.ca.us/~mmalacho/physio/oll/Lesson2/transduct.html http://www.uic.edu/classes/bios/bios100/lectures/nervous.htm http://www.hormone.org/endocrine_system_diseases.cfm http://www.medicalook.com/Diabetes/ http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001396/ http://www.google.com/imgres?q=hypothalamus&um=1&hl=en&safe=active&biw=1280&bih=827&tbm=isch&tbnid=kanVdhI3c4sk YM:&imgrefurl=http://www.vivo.colostate.edu/hbooks/pathphys/endocrine/hypopit/anatomy.html&docid=qDVGyri6UFQHE M&imgurl=http://www.vivo.colostate.edu/hbooks/pathphys/endocrine/hypopit/sagpit.jpg&w=350&h=250&ei=Q1d0T6KsHsio 0AGnpImDAw&zoom=1&iact=rc&dur=78&sig=105769914419866040626&page=1&tbnh=134&tbnw=188&start=0&ndsp=24&ve d=1t:429,r:2,s:0&tx=142&ty=30 http://www.youtube.com/watch?v=qzjjW--I-2Q&safety_mode=true&persist_safety_mode=1&safe=active http://uvahealth.com/services/pituitary-neuroendocrine/conditions-treatments/cushings- disease?gclid=CKGxkf2QjK8CFcYRNAodkiiDJw