How Much Blood Can the Heart Move the Through the Body in an Average Lifetime? Coursehero

Keeps on Pumpin'

Objective

Students will measure and calculate heart rates per minute and for other units of time. They will decide the amount of claret pumped by their heart during various intervals of time.

Cool Weblinks

Key Questions

• How many times volition your heart crush in lxxx years?
• how much blood is pumped with each beat out?

Materials

For every student

• plastic loving cup
• copy of "Keeps on Pumpin" worksheet

For every 2 students

• graduated cylinder
• calculator
• plastic cup filled with water
• measuring record or meter stick

For the class

• clock or scout with a second hand or a digital reading
• water pitchers
• kilogram scale
• nomogram (included in kit)

Procedure

Determine your "at rest" heart rate, then extrapolate to beats per hour and beyond.

How much blood does your heart pump in one infinitesimal? This is chosen cardiac output.

To calculate cardiac output you lot need to know your body surface area in square meters and your cardiac index (how much blood is pumped per minute for every square meter of body surface area).

To find your torso's surface area, beginning use the calibration and measuring tape to decide your weight in kilograms and your height in centimeters.

Weight =____ (kilos) Height = ____(cm)

On a nomogram, find your weight in the right column and your height in the left column. Place a straightedge on the nomogram so the weight and top are connected. The point where the straightedge crosses the center column denotes your body'south surface area in square meters.

How much blood the heart pumps for every square meter of surface surface area (cardiac index) varies with the historic period of the individual. For children ages ten­13, the average cardiac index is 2.75 liters/thou^two/minute at a resting state.

Multiply your body surface area by the cardiac alphabetize (2.75 l/k²/minute) to determine the liters of blood pumped by your heart in one minute (cardiac output).

²/infinitesimal= ____liters per infinitesimal.

How does your volume per minute compare to a 2 liter beverage canteen?

.How much blood is pumped in an hour and in a day?

How much blood does your heart pump in 1 trounce? This book is chosen stroke book.How would you lot summate stroke volume? (Answer: liters pumped per minute divided by beats per minute).

What is your stroke volume?____

Convert the stroke volume to milliliters.

____liters per minute ten 1000 = ____ml per shell

Use a graduated cylinder to carefully measure this amount of h2o. Pour it into a cup. This is the volume of blood pumped by your heart in one beat. Compare this to the volumes of other classmates.

Extensions

A mouse's centre beats virtually 700 times per minute and an elephant'southward about 30. A mouse lives less than three years, an elephant more than 60. What's the connectedness?

Compare the center rates of various animals. Is there a relationship between size of beast and eye rate?

Research the longevity of diverse animals and compare this to their heart rate. Is in that location a relationship between the average lifetime of an animal and its heart charge per unit?

Notes to the instructor:

Over i,500 Gallons of Blood Pumped Daily
The heart is a powerful muscle that beats without stopping throughout a lifetime. It pumps near 55-lxxx ml (1/3 cup) of blood with each shell for adults and effectually 25-85 ml per crush for children. An developed centre pumps near 6,000-7,500 liters (ane,500-2,000 gallons) of blood daily. The average adult body contains about v quarts of claret which continually circulates throughout the body. The shortest trip to the heart muscles takes only a few seconds. The trip to the toes takes over a minute.

WebLinks

How Your Heart Works: Interesting Heart Facts

http://www.howstuffworks.com/heart6.htm Dr. Carl Bianco, Chiliad.D., is at it once more, every bit he informs his fantastic fans about the heart's fabulous, fun facts.

The Implantation of a Heartmate

http://world wide web.smm.org/studio3d/julie/heartmate.htm
A alive video of the implantation of a heartmate!

Center Transplant

http://www.smm.org/studio3d/julie/mov/julie/htransplant.htm
A live video of a middle transplant!

| lesson 1: Pulse of Life| lesson two: Keeps on Pumpin' | lesson three: Nether Pressure | lesson 4: Sounds of the Heart | lesson 4a: Valves and Pumps | lesson five: Lub Dub (valves) | lesson 5a: The Heart as a Pump | lesson 6: Get With the Flow | lesson vii: Lung Model | lesson 8: Ins and Outs of Respiration | lesson 9: Catch Your Breath | lesson 10: O₂ CO₂ Skit | lesson 11: X-Rays |

Habits of the Heart ©2000 Scientific discipline Museum of Minnesota

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Source: https://www.smm.org/heart/lessons/lesson2.htm