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Endocrine System

Endocrine System. 2011 Summary. Body conditions are controlled by which systems?. The nervous system The endocrine system. What are glands?. Glands are structures that secrete substances. Name the 2 types of glands?. Exocrine Endocrine.

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Endocrine System

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  1. Endocrine System 2011 Summary

  2. Body conditions are controlled by which systems? • The nervous system • The endocrine system

  3. What are glands? • Glands are structures that secrete substances

  4. Name the 2 types of glands? • Exocrine • Endocrine

  5. What is the difference between an exocrine and endocrine gland? • Exocrine – release their products into ducts • Endocrine – release their products (hormones) directly into the bloodstream

  6. Which gland is both exocrine and endocrine? • Pancreas

  7. Give 2 examples of exocrine glands? • Salivary glands • Mammary glands • Gastric glands • Sweat glands

  8. What is a hormone? • Chemical messenger • Made of protein or steroid • Produced by endocrine gland • Carried in the bloodstream • To where is has a specific effect

  9. Compare the Nervous system and the Endocrine system?

  10. Can you name the 10 major endocrine glands A B C D E G H I J K

  11. Can you name a hormone secreted from each gland ADH Melatonin FSH, LH, GH Parathormone Thyroxine Thymosin Adrenaline Insulin Oestrogen Testosterone

  12. For a named hormone describe: (i) Deficiency symptoms(ii) Excess symptoms(iii) Corrective measures? • Thyroxine – from thyroid, controls metabolism • Deficiency symptoms – reduced metabolism, lack of energy, weight gain, myxoedemia& goitre • Corrected by – Thyroxine tablets or iodine • Excess symptoms – increased metabolic rate, weight loss, bulging eyes, anxiety, Graves’ disease • Corrected by – surgery removing part of thyriod

  13. How are Thyroxine levels controlled in the body? • Negative feedback • Low Thyroxine levels stimulate the pituitary to release TSH • Thyroid produces Thyroxine • Normal Thyroxine levels inhibit TSH • Thyroid wont produce Thyroxine

  14. What are anabolic steroids?What is the danger with using them? • Drugs that build up muscle • Can lead to liver & adrenal disorders

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