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Homework: Paragraph in NB on respiratory disorder Silent Do Now: (in NB w/ title and date)

Bio 9B: Monday, 12/19/11 Title: Respiratory System. Homework: Paragraph in NB on respiratory disorder Silent Do Now: (in NB w/ title and date) Take out your lab report and put it on your desk. List some of the organs in the respiratory system.

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Homework: Paragraph in NB on respiratory disorder Silent Do Now: (in NB w/ title and date)

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  1. Bio 9B: Monday, 12/19/11 Title: Respiratory System • Homework:Paragraph in NB on respiratory disorder • Silent Do Now: (in NB w/ title and date) • Take out your lab report and put it on your desk. • List some of the organs in the respiratory system. • What is the function of the respiratory system? • Flip back to your notes from 10/14/11 and find the equation for cell respiration. What is the purpose of cell respiration? • How does the respiratory system relate to cell respiration? • Today’s Objectives: • Describe the structures and functions of respiratory system organs, and explain how they relate to each other

  2. Respiratory System 12/19/11

  3. Agenda Respiratory System: Structures and Functions Day 1 (1st Half of Double Block) Complications of the Respiratory System

  4. Cellular Respiration: Summary Equation We inhale this when we breathe in Glucose + O2 CO2 + H2O + ATP energy + heat We exhale this when we breathe out This is the energy that our cells use to do work • Objectives for Class: • Connect cell respiration to systems of the human body • Write the summary equation for cell respiration

  5. Purpose of the Respiratory System • Transport O2 from the air into the bloodstream • Release CO2 from the bloodstream into the air • All because of CELL RESPIRATION: • Cells need O2 for cell respiration to make ATP • Cells release CO2 as a waste product from cell resp. • Objectives for Class: • Describe the difference between structure and function, and explain how an object’s structure relates to its function • Describe the major structures and functions of all organs in the respiratory system

  6. How the Internal Organs Fit Together Image shows major digestive, respiratory, and circulatory system organs Front View Back View Images: http://www.turbosquid.com/FullPreview/Index.cfm/ID/270177

  7. Structures of the Respiratory System • Objectives for Class: • Describe the difference between structure and function, and explain how an object’s structure relates to its function • Describe the major structures and functions of all organs in the respiratory system

  8. Structures of the Respiratory System: • Mouth & Nose: • Take in air • Moisten/filter the air (nose hairs, saliva & mucus) • Trachea (aka windpipe): • The main airway to the lungs. • Made of stiff cartilage • Objectives for Class: • Describe the difference between structure and function, and explain how an object’s structure relates to its function • Describe the major structures and functions of all organs in the respiratory system

  9. Structures of the Respiratory System: • Lungs: • Main organs of the respiratory system where gas exchange happens. • Bronchi: • Tubes that branch off from trachea. • One major bronchus for each lung branches into smaller and smaller “bronchioles” in the lung Major Bronchi Branching Smaller Bronchioles Branching in the lung • Objectives for Class: • Describe the difference between structure and function, and explain how an object’s structure relates to its function • Describe the major structures and functions of all organs in the respiratory system

  10. Structures of the Respiratory System: • Alveoli: • Tiny air sacs at the ends of the bronchioles where gas exchange takes place. Look like GRAPES! • Surrounded by a network of capillaries – tiny blood vessels that trade O2 and CO2 with alveoli

  11. Structures of the Respiratory System: • Objectives for Class: • Describe the difference between structure and function, and explain how an object’s structure relates to its function • Describe the major structures and functions of all organs in the respiratory system

  12. Agenda Respiratory System: Structures and Functions Day 1 (1st Half of Double Block) Complications of the Respiratory System

  13. Complications of the Respiratory System • 6 Groups: • Smoking (use pg. 961-963 in book) • Pneumonia • Cystic Fibrosis • Bronchitis • Asbestos • Asthma

  14. Complications of the Respiratory System • Work quietly and productively with members of your own group. • First, work together to complete the Respiratory System Worksheet • When finished, raise your hands to get your work checked, and to get a Respiratory System Complications packet and instructions • Assign jobs and continue working quietly and productively to complete page 1 of the packet You should not be: wandering or talking with other groups HW: One paragraph on your disorder, in your notebook.

  15. Bio 9B: Tuesday, 12/20/11 Title: Respiratory System Complications • Homework:Study for Thursday’s Quiz by answering questions #1-6 on the back of the study guide • Silent Do Now: (in NB w/ title and date) • What is the structure of the bronchi? See pictures above and below for a reminder (Are bronchi tubes? Sacs? Solid lumps?) • What is the function of the bronchi? (check yesterday’s notes) • What would happen to the function of a bronchus if the diameter got smaller? • Today’s Objective: • Describe the structures and functions of respiratory system organs

  16. Today’s Agenda • Review the Do Now • Finish the Jigsaw Activity – 15 more minutes in groups • Reflection – 15 minutes of silent individual writing Goal for today: You should be able to: • Explain how the structure of each respiratory organ helps with its function • Apply this knowledge to explaining the causes and symptoms of respiratory disorders

  17. Complications of the Respiratory System:Group Jigsaw Sit at your table from your second group from yesterday. Group members report out on their issue (15 more minutes) • 5 minutes per person to share information • Everyone else records information in your packet • If your group finishes early: • 3-person groups – get another info sheet and learn about another complication • 4-person groups – start the Reflection on the back of the packet

  18. Complications of the Respiratory System:Individual Reflection Return to your regular seat Take the next 15 minutes to silently complete the Reflection on the back of the packet. I will be handing back some work and checking in with individual students. Please work silently so that you do not disrupt this process! If you finish early: • Get an extra credit reading assignment (on kidney table) • Begin reviewing for Thursday’s Quiz – start HW

  19. Plan for Thursday: • Notes on Breathing and Gas Exchange (25 minutes) • Quiz Review (25 minutes) • Quiz (up to 50 minutes) Tonight’s HW: Complete Questions #1-6 on the Study Guide (back of assignment sheet)

  20. Bio 9B: Thursday, 12/22/11 Title: Breathing & Gas Exchange • Homework: • Have a great vacation & a happy new year! • Silent Do Now: (in NB w/ title & date) • Write today’s title & date in your notebook • Breathe in a deep breathe. Then breathe out. Do this several times while paying attention to what is happening to your body. • Write down at least 3 observations in your notebook. • Today’s Objectives: • Explain how the diaphragm control the process of breathing. • Explain how diffusion and concentrations create gas exchange in the lungs. • Demonstrate knowledge on the quiz!

  21. Today’s Agenda & Announcements • Period 3: • Do Now • Notes: Breathing • Breath-Holding Exercise & Debrief • Notes: Gas Exchange • Quiz Review • Period 4: • Quiz on Membranes & Respiratory System • Today’s Objectives: • Explain how the diaphragm control the process of breathing. • Explain how diffusion and concentrations create gas exchange in the lungs.

  22. Two Important Processes in the Respiratory System: (Don’t need to write this down – just a preview) • Breathing – controlled by the diaphragm • Gas exchange – happens in the alveoli • Today’s Objectives: • Explain how the diaphragm control the process of breathing. • Explain how diffusion and concentrations create gas exchange in the lungs.

  23. BREATHING: • Diaphragm: • A large flat muscle that controls breathing • Located at the bottom of the chest cavity • Today’s Objectives: • Explain how the diaphragm control the process of breathing.

  24. The Process of Breathing Inhaling: • Diaphragm contracts & lowers • Volume of lungs increases (partial vacuum) • Air rushes in (through mouth/nose, trachea, bronchi, to alveoli) to fill the space Exhaling: • Diaphragm relaxes & bends upward • Volume of lungs decreases • Air is forced out (from alveoli through bronchi, trachea, mouth/nose) • Today’s Objectives: • Explain how the diaphragm control the process of breathing.

  25. Quick Activity – Holding Your Breath • Hold your breath for as long as you can (on my start) • While you are holding your breathe, observe what happens to your body the longer you try not to breathe. • Record these observations in your notebook. • Debrief:Talk to your partner for 1 minute about how you did and how it felt: • What did you observe about your body as you tried to hold your breath? • Objectives for Class: • Describe the difference between structure and function, and explain how an object’s structure relates to its function • Describe the major structures and functions of all organs in the respiratory system

  26. The Process of Gas Exchange Blood w/ little O2 and lots of CO2 Alveoli (air sacs at ends of branches in lungs) Capillary (tiny blood vessel) O2 O2diffuses into blood in capillary CO2diffuses into alveoli CO2 Blood w/ lots of O2 and little CO2

  27. The Process of Gas Exchange Gas exchange – the diffusion of oxygen and carbon dioxide across cell membranes • Happens in the alveoli of the lungs • Oxygen diffuses from alveoli into capillaries (tiny blood vessels) and binds to red blood cells • Carbon dioxide diffuses from capillaries into alveoli • Objectives for Class: • Describe the difference between structure and function, and explain how an object’s structure relates to its function • Describe the major structures and functions of all organs in the respiratory system

  28. The Process of Gas Exchange • Gas exchange in the lungs needs MAD surface area for enough O2 and CO2 to diffuse! • Lungs contain 1.3 million alveoli!! • The total surface of all the alveoli would cover half a tennis court!!

  29. Quiz Review • You have 10 minutes to… • Take out the assignment sheet • Answer questions #7-8 on the back of the assignment sheet • Review questions #1-6 – quiz yourself!

  30. Quiz! • Start as soon as you get a quiz • Work silently – if you need something, raise your hand • When you finish – start other HW or read a book

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