Heart to heart – lesson escoliosis dorsal derecha – teachengineering

Your grandmother herniated lumbar disc sleeping position, who has been a non-smoker and relatively healthy throughout her life, has recently noticed that she is becoming increasingly short of breath as she does simple things, such as climbing the steps in her house. She has also noticed that her heart rate increases when she does mild exercise, such as walking to the mailbox or going upstairs. What could be causing this? Is it just due to her getting older? Is there reason to be concerned? What can be done to help her?

After presenting the grandmother challenge, hand out the Challenge Question Brainstorm Worksheet and ask students to brainstorm ideas about what could be causing the heart condition ( Legacy Cycle Step 2: Generate Ideas).


Hopefully, the challenge information provided will steer students towards a possible cardiac issue, but be prepared for other ideas (such as respiratory issues, infection, etc.). Record all ideas on the classroom board, and group them into student-generated categories. While dolor de lumbares there is no real lecture to this part of the lesson, it is important to that all students participate in the brainstorming portion of the lesson and record all ideas. In brainstorming, remind students that no ideas are silly, and that all ideas should be heard. Hopefully, students have some early ideas they can share about the heart, but it may be necessary to prompt them if not.

After students have completed brainstorming ideas, read to them (or have them read to themselves) the Cardiac Valve Research: Expert Interview ( Legacy Cycle Step 3: Multiple Perspectives), which introduces ideas about how heart valves might contribute to health problems. This interview steers them more towards a cardiac issue and a solution. After reading the interview, begin a class discussion about heart defects. (Note: You may need to distinguish between congenital defects (present at birth) and those that develop later escoliosis lumbar izquierda in life.)

A congenital heart defect is a condition that approximately 9 of every 1,000 people are born with and affects the structure of the heart and the large blood vessels that directly move operacion de columna lumbar recuperacion blood to and from the heart (aorta, pulmonary arteries, superior and inferior vena cava). These defects can block blood flow or cause blood to flow in irregular patterns through the heart. In some cases, no action needs to be taken, but in other cases, medication or surgery is necessary.

While a congenital heart defect is a condition that some people are born with, many other heart diseases and defects develop through people’s lives. These conditions, referred to as cardiovascular or heart disease, affect the heart’s valves, muscles and blood vessels, including arteries, capillaries and veins. These diseases include coronary heart disease (which affects the coronary artery that supplies blood to the heart muscles, and can lead to heart attack)s, cardiomyophathy (a disease of the muscles in the contractura lumbar ejercicios heart), hypertensive heart disease (includes complications to the heart due to high blood pressure), valvular heart disease (diseases such as inflammation or stiffness to the heart valves that affects the movement of blood through the heart), and many others.

Part I of the lesson ends with students using the Internet to research possible heart problems by ( Legacy Cycle Step 4: Research and Revise). They should research the diseases previously mentioned, as well as other heart diseases. Remind students that the goal is to search for information that might be useful in approaching the challenge question. (Note: If no time remains, assign completion of this research as homework.) Suggested search topics include heart valve disease, heart valve problems, cardiac regurgitation and heart function.

Part II of the lesson (Days 2-4) utilizes Legacy Cycle Step 4: Research and Revise in that students learn about the form and function of the heart, as well as about blood flow through the heart’s chambers. This information is useful in later understanding the concept of blood pressure, as well as the stresses placed on heart valves and the problems caused escoliosis lumbar izquierda tratamiento by such stress. Students also research the anatomy of the heart by dissecting a sheep heart in the associated activity, The Mighty Heart.

On Day 2 of the lesson, provide a class lecture using The Human Heart and Blood Flow Presentation (a PowerPoint file) and the suggested script below, on heart anatomy and blood flow. The purpose of the lecture is to ensure students understand how the heart is structured and how it works; spending a quality amount of time on this background information ensures escoliosis dorsal de convexidad derecha student mastery of heart form and function and lends clarity to the activities.

Slide 2: The human heart is a muscular organ located in the thoracic cavity, nestled between the two lungs and very slightly to the left of center. For adult humans, it is about the size of their clenched fists; for children, it is about the size of their clenched fists, and grows as they grow. The heart weighs approximately ½ pound, but it is normal to vary in size, just as the overall size of people varies.

Slide 4-5: The heart is a pump that is designed to move blood through the human body. It does this by contractions of the myocardium, thus causing the chambers of the heart to compress and push the blood within. Valves serve as one-way doors, separating the chambers of the heart and the vessels that lead out of the heart. These valves escoliosis lumbar sintomas prevent blood from moving in the wrong direction as it moves through and out of the heart. Contractions occur at an average rate of 70 beats per minute (bpm), providing the movement of a continual flow of blood throughout the body dolor lumbar embarazo.

• Left ventricle — this chamber receives blood from the left ventricle, and is responsible for contracting to push blood out through the vessels of the body. Because of this task, the myocardium that makes up the walls of the left ventricle is much thicker. Also, the left and right ventricles are separated by a myocardial wall called the interventricular septum. Blood leaving this chamber moves through the…

Have students continue their research on congenital heart defects and the nature and side effects of valve disease for additional learning opportunities (or assign this work as homework). Many online resources are at students’ disposal. A focused internet search using the keywords previously mentioned yields hundreds of content-rich documents.

• What’s with All the escoliosis sintomas Pressure? – Measuring blood pressure is an excellent way to assess circulatory system and heart health. Students learn and practice measuring blood pressure using blood pressure cuffs and stethoscopes. They learn about blood pressure, how it is measured, and how it is related to the structure of the heart and its functioning.

• What is an example of an engineer whose work might affect our health? (Possible answers: Biomedical engineers work with doctors and surgeons to design medical technologies, tools, equipment and procedures, chemical engineers design medicines, and civil and environmental engineers create infrastructure that provides drinking water treatment, waste water treatment and air quality, which all have a direct influence on public health.)

• What type of engineer might work hand in hand with a doctor to help a patient with heart disease? (Answer: A biomedical engineer designs technologies that doctors can use, such as stents to open arteries clogged by plaque build-up, artificial heart valves escoliosis fotos to replace deteriorated or injured heart valves, and artificial hearts that pump blood through the body during surgeries and even after a person’s biological heart fails.)

Heart Disease and Defects Research: Have students conduct Internet research to learn more about heart diseases as well as various defects. Require students to research at least 10 different types of heart diseases, including at least escoliosis lumbar ejercicios one disease of the heart valves, take notes, and write brief summaries (two paragraphs) about each disease to turn in for grading. Have them incorporate the vocabulary words—such as left and right atria, left and right ventricle, tricuspid valve, mitral valve, interventricular septum, aorta, aortic valve, superior and inferior vena cava, pulmonary arteries and pulmonary veins—in the summaries.