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Cardiovascular system

Computer simulation:Exploring Biology: Cardiovascular System

Work in pairs at Macintosh computers

The computer displays a Work Window on the left- set and display variables

Model Window on the right- displays the heart and circulatory system, displays a number

of tools

GO Starts the simulation and re-sets all variables to their original values

STOP Stops the simulation

CONTINUE- Re-starts the simulation, without returning variables to original valuesARROW- To open and close windows, to touch buttons, set activity levels

VESSEL- Used in ex. 6 to view cross-sections of the coronary arteries

Ex 1, Function of the circulatory system-distinguish arteries, veins, and capillaries and

functions of each

Open folder CVS Activities --open file Exploring CVS ---- select doc 2)

CirculationThen click Cycle One.

Ex. 2, Major features of the heart.

Click on the heart buttonEx. 3, Cardiac physiology. To record oxygen and blood pressure data from each of the

chambers of the heart

Select 3) the human pump---Click on O2 and pressure study

Ex. 4, Effects of exercise on heart function. Determine stroke volume and calculate

cardiac outputSelect 4) fitness---click jumping test

Ex. 5, Coronary artery disease and heart attack. Effects of coronary artery disease on heart

function.Select heart Attack under CVS activities---click on Mr. Hartman starts climbing

stairs, follow instructions

Ex. 6, Therapy for coronary artery disease. Describe two therapies to overcome these

effects.

Select Mr. Simmons case and Show coronary data, follow instructions

Assignment: Sample test questions (pages 118, 119, 120)

2, 4, 5, 10, 11

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Worksheet Unit 7

Name:___________________________________________ Section:________________

1. How is the systemic circuit of blood flow different from the pulmonary circuit?

Systemic Circuit Pulmonary Circuit

2. The system of arteries that supply the heart with its own, separate supply of blood iscalled?

3. Which vessel leaves the right ventricle and delivers deoxygenated blood to the lungs?

4. Why is the pressure in one ventricle so much higher than the other?

5. Which chamber receives the deoxygenated blood from the systemic system first?

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5. Right atrium

2. coronary arteries