From the moment it begins beating until the moment it stops, the human heart works tirelessly. In an average lifetime, the heart beats more than two and a half billion times, without ever pausing to rest. Like a pumping machine, the heart provides the power needed for life. The students will recognize the importance of taking care of the heart and it's supporting mechanics.The students will recognize the importance of taking care of the heart and its supporting mechanics.
Students will gain working knowledge about the heart, the arteries, blood vessels, and how they all work together to give us life.In a general sense, a vessel is defined as a hollow utensil for carrying something: a cup, a bucket, a tube. Blood vessels, then, are hollow utensils for carrying blood. Located throughout your body, your blood vessels are hollow tubes that circulate your blood.
There are three varieties of blood vessels: arteries, veins, and capillaries. During blood circulation, the arteries carry blood away from the heart. The capillaries connect the arteries to veins. Finally, the veins carry the blood back to the heart.
If you took all of the blood vessels out of an average child, and laid them out in one line, the line would be over 60,000 miles long! An adult's vessels would be closer to 100,000 miles long!
Besides circulating blood, the blood vessels provide two important means of measuring vital health statistics: pulse and blood pressure. We measure heart rate, or pulse, by touching an artery. The rhythmic contraction of the artery keeps pace with the beat of the heart. Since an artery is near the surface of the skin, while the heart is deeply protected, we can easily touch the artery and get an accurate measure of the heart's pulse.
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We are born with either a healthy heart or an unhealthy heart. In any case, once we are able to choose what should be done to ensure that our hearts remain healthy, or, in time, become unhealthy, depends entirely on our lifestyles, eating habits, and practices in the home as well as away from home. Children can be taught the importance of healthy diet and exercise as early as pre-school age. Eating fruits and plenty of vegetables regardless of the snickers and turned-up noses should be mandated for each meal.
Good eating habits actually begin in the womb and will continue until we go to the tomb.
Therefore, today we shall examine some things which can be done daily to keep our hearts healthy.
Place varied food items in and around the class room, pictures of varied forms of exercise and/or recreation and ask the students to select the items which they feel will either benefit and promote healthy lifestyles or cause damage to t he body We will then discuss/describe the heart as well as discuss the role it plays in sustaining our life and how the heart functions.
Using pictures, the students will identify and label the heart as well as the skeleton of the human body. The students will blow up varied sized balloons and measure the length of each balloon and write the measurements on a chart. This will be done twice and the results will be compared, the smaller number will be considered the better of the two. The students will make strawberry kool-aid, which will be poured into very small balloons to simulate the blood flow in the arteries of the heart. If there is an blockage in a specific artery, this will be shown by a small amount of baking soda which will be poured into the balloons prior to the pouring in of the kool-aid. Based on the information given to the students prior to this lab being done, the students will have accumulated enough information to complete hand-outs on the data gathered during the lab. It is my desire that upon completion of this lab that the students will have gained enough information to encourage them to be aware of the outcomes if they continue to mismanage their eating habits as well as not exercising properly. The primary thought for the lesson will be "If you take care of your body, it will take care of you."
Stretching is always a great means to exercise, strengthen specific muscles, and relax.
Assessment will be done in two methods. The students will have to complete a worksheet relative to the subject discussed and the materials presented during the lab as well as complete a 25 question quiz. (To see a sample of the quiz, click here).
© Estellvenia Sanders