Endocrine System Tristan Simon Jake Amanda

Overview The endocrine system is a radio. It is slower, but it gets out to more people. The chemical messages get to more cells. Endocrine- secretes hormones in to blood stream and extracellular fluid Exocrine-secretes substance directly at the target (Not important yet)

Endocrine Glands Pineal Gland Hypothalamus Pituitary Thyroid/Parathyroid Thymus Adrenal Glands Pancreas Gonads (Ovaries and Testes)

pineal and hypothalamus Pineal- releases melatonin which helps to regulate the biological clock Hypothalamus- regulates pituitary gland. It makes the hormones that are stored in the pituitary gland

pituitary and thyroid/parathyroid Pituitary- Produces hormones that regulate many other endocrine glands. Thyroid/Parathyroid- The thyroid regulates metabolism. The parathyroid regulates the amount of sodium in the blood.

thymus and adrenal Thymus- During childhood, the thymus stimulates T-cell development Adrenal- stimulates the production of epinephrine and norepinephrine to aid the body in fight, flight, or, fright situations.

Pancreas Pancreas- it produces insulin and glucagon.

Gonads (and strife) Ovaries- produce estrogen and progesterone (in females). Responsible for secondary sexual development. Testes- produce testosterone (in males). Responsible for sperm production and secondary sexual development.

How the Hormones Work Most hormones work by binding to receptors on the target cells. Steroid hormones can enter a cell and alter DNA sequences. Non-Steroid hormones CAN’T enter a cell, so they have to bind to receptors and use a secondary messenger. Hormones are secreted into extracellular fluid, or directly into the blood stream.

Questions 1. What are glands? (define exocrine and endocrine) A. Nostrils B. Muscles C. openings that secrete hormones D. Ear Canals 2. What is a Hormone? Give an Example. A. chemical message B. a hotdog C. farts D. Pancreatic juice 3. Where is the Hypothalamus? A. In the abdomen B. in the legs C. in the head D. the nose 4. How are steroid different from non-steroid hormones? A. one is red and the other is blue B. one is round and the other is square C. one is fat and the other is skinny D. one can enter a cell and the other can’t.

More Questions 5. What hormone/gland controls the fight, fright, or flight? A. the adrenal gland/epinephrine B. The pineal gland C. the gonads D. the thyroid glands 6. Insulin is produced where? A. Pancreas B. Hypothalamus C. Kidneys D. Ovaries 7. Where is sperm produced? A. Ovaries B. Gonads C. Testes D. Hypothalamus 8. What is a target cell? A. destination for a hormone B. a cell with a target on its back C. where cells go to shop D. a chief cell

More Questions 9. What does the pancreas produce? A. Bile B. insulin C. adrenaline D. amylase 10. What does the prefix “endo-” mean? A. Outside B. Inside C. With D. Without 11. What does the prefix “exo-” mean? A. Outside B. Inside C. With D. Without 12. What is the endocrine system do? A. controls the release of hormones B. controls breathing C. Regulate other organ systems D. Blarphengarph

More Questions 13. The hypothalamus does what? A. regulates the pituitary B. Blarfengar C. Anne Smith D. Smeagal 14. What does the bonded hormone do to the cell? A. Modifies DNA in the nucleus B. The cytoplasm C. The methane D. Ganglia. 15. Where do steroid hormones connect with their receptors? A. In the nucleus B. In the Pancreas C. In the cytoplasm D. On the membrane 16. The exocrine glands secrete substances to where? The bloodstream B. The urine C. The target zone D. The oil in hair 17. The ovaries produce these two hormones…. Progesterone/Estrogen B. Progesterone/Testosterone C. Estrogen/Testosterone D. ADH/Testosterone

More Questions 18. The thyroid gland produces what? A. Thyroxine B. Canterflumul C. Menengitis D. Methane 19. The pineal gland produces what? Melatonin B. Flagnarg C. La Mov D. Cholera 20. Parathyroid glands produce what? A. Parathyroid hormone B. Canterflumul C. Methane D. La Mov

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