9.2 Heart

PRE-WORK

OUT-OF-CLASS (Use Study Buddies)

  1. Watch this video to recap 9.1 Transport in Animals and learn about 9.2 Heart.
  2. Create at least three (3) quiz questions to ask your Learning Partner about the Heart.
  3. Keep these safe - as Mrs. V will check these. If you do not have them, you will make a visit to the Oasis to re-watch the video and create these. No exceptions!

WARM-UP

INDEPENDENT Activity - No Talking

  1. Place the lesson Pre-Work on your desk.
  2. Add upcoming Homework to your Agenda:
    • DUE NEXT LESSON: Bring Unit 2 Exams to Class (U3 will be returned Monday - waiting for some makeups)
  3. Title your Cornell Notes with "Unit 4: Lesson 9.2 Heart"
  4. Ask your Learning Partner the questions you created based on the video. Take turns quizzing one another. Write down your favorite Q&A at the top of your Cornell Notes.
  5. Turn in Late assignments to the inbox. Put away PreWork.
  6. When finished, scroll to the bottom of the page to access the NEXT Lesson's Prework to get an early start!

CLASS ANNOUNCEMENTS

  1. Be sure to do your nightly Prework!

#DontGetLeftOut #NoExcuses #SeekOutYourStudyBuddies

9.2 STANDARD & TARGETS

AT THE END OF THIS LESSON, I WILL BE ABLE TO ...

Classroom Learning

  • IDENTIFY the structures of the mammalian heart. (9.2 Video)
  • STATE how blood moves throughout the body. (9.2 Video)
  • EXPLAIN the relative thickness of the heart walls. (9.2 Video)
  • EXPLAIN the importance of the septum. (9.2 Video)
  • DESCRIBE the functioning of the heart. (9.2 Video)
  • STATE how the activity of the heart may be monitored. (9.2 Activity)

Realistic Application

  • INVESTIGATE the effect of physical activity on the pulse rate. (9.2 Activity)
  • DESCRIBE coronary heart disease. (9.2 Activity)
  • DESCRIBE the roles of diet and exercise in the prevention of coronary heart disease. (9.2 Activity)
  • DESCRIBE ways in which coronary heart disease may be treated. (9.2 Activity)

IN THIS LESSON, I WILL DEMONSTRATE MY LEARNING BY ...

  • LEADING a case study for coronary heart disease.

LESSON NOTES

Question of the Day ...

Why is it so important to keep my heart healthy - both when young and old?

Review the Prework

Heart Structure

  • REVIEW the structure of the heart. **Glue this into your notes.**
  • Let's watch this video that explains how to easily memorize the structure of the heart.

Heart Facts

  • BLOOD is pumped AWAY from the heart into arteries and returns to the heart in veins.
      • Blood MOVES by way of muscle contraction of the atria (plural for atrium) and ventricles
      • The VALVES keep the blood from slipping backwards in between beats (Mitral Valve Prolapse)
  • The SEPTUM is important to:
      1. separate oxygenated and deoxygenated blood
      2. keep blood pressure
  • The muscle wall in the LEFT ventricle are thicker than those in the Right Ventricle.
      • LEFT pumps out to the body so it needs power!
      • Right pumps out to the lungs (not as far to go)
  • The ATRIA Walls are THINNER than the Ventricle Walls.

Testing for Heart Disease

Heart Sounds

  • Here is a short video
      • normal 0:00
      • systolic murmurs 1:06, 1:23, 1:45, 2:48
      • aortic regurgitation 3:45

Pulse Test

  • Count number of beats per minute of resting heart rate.
  • A normal resting heart rate for adults ranges from 60 to 100 beats per minute.
  • Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness, but sometimes can signal imbalances.

Testing for Heart Disease

Electrocardiogram (ECG or EKG)

Treatment for Heart Disease

  • Stents - a tubular support placed temporarily inside a blood vessel, canal, or duct to aid healing or relieve an obstruction
  • Angioplasty - surgical repair or unblocking of a blood vessel, especially a coronary artery
  • Bypass - replace damaged arteries that supply blood to your heart muscle. A surgeon uses blood vessels taken from another area of your body to repair the damaged arteries

PRACTICE

You will create a "mystery" for you peers to solve. Here is the scenario:

      • You are a MD working in the Emergency Room (ER) today, and have just admitted a patient with Coronary Heart Disease. As a reminder, this is where the coronary (heart) arteries become blocked and blood cannot flow through.
  1. Generate a Name, Gender, and Age for your patient.
  2. As part of your examination, you ask the patient about their Coronary Heart Disease (CHD) risks. Refer to the CAMBio textbook (Section 8.4 - p. 86) for details about this condition and its risks.
      • Diet - specifically about saturated fatty foods
      • Lifestyle habits - exercise, smoking, and stress
      • Genetics - gender, family history
      • Age - middle-aged to elderly increases risk
  3. Once you gather the information, you order tests on your patient to determine heart activity.
      • Electrocardiogram (ECG)
      • Measure Pulse Rate
      • Heart Sounds ("lub dub")
  4. Create "clue cards" for handoff to another group with the information from #1, the risks for each bullet point in #2, and the test results for each bullet point in #3.
  5. Trade "clue cards" with another group.
  6. Now, fully review the "clue cards" and create a Medical Record that summarizes the following:
      • Name
      • Gender
      • Age
      • Explanation of the risks in #2 and what that means for the patient
      • Explanation of #3 which includes answers to the following:
          • Is the pulse (heart) rate normal or abnormal? What does this mean for your diagnosis?
          • What was the result of the ECG? What does this mean for your diagnosis?
          • Were the heart sounds normal to sound like "lub-dub"? What does this mean for your diagnosis?
  7. Add the treatment plan recommendations for the patient.
      • Provide a diet & exercise plan
      • Drug treatment (aspirin) - is it needed? why or why not?
      • Surgery (stents, angioplasty and by-pass) - which, if any, is needed? why or why not?
  8. Be sure to write all group members name on the paper and submit for an Academic Grade - this must show mastery so do a good job!

SCORING GUIDELINES

  • 20% Create Case Study for peers
  • 40% Explanation of Risks
  • 20% Explanation of Tests
  • 20% Treatment Plan

EXIT TICKET

  1. At the bottom of your Cornell Notes ...
  2. List the habits & behaviors that you can perform RIGHT NOW to keep a healthy heart. Show Mrs. V for a special stamp!
  3. 12.3 Checkin Quiz

HOMEWORK

  • DUE NEXT LESSON: Bring Unit 2 & Unit 3 Exams to Class