Post-lecture activity: Heart and Blood Vessels

Opened: Tuesday, 5 November 2024, 12:00 AM
Due: Thursday, 7 November 2024, 11:59 PM

THE CARDIOVASCULAR SYSTEM: Heart and blood vessels

Answer the question below: 

  • Adequate cardiac output is necessary in order to supply oxygen and other nutrients to all body tissues. Cardiac output is influenced by stroke volume and heart rate. Factors affecting the stroke volume include PRELOAD, CONTRACTILITY and AFTERLOAD.
  • In the following conditions, indicate what factor/s influence the cardiac output: PRELOAD, CONTRACTILITY, AFTERLOAD, HEART RATE. Explain why the factor/s affects cardiac output in 1 to 2 sentences.

a. High blood pressure

b. Massive bleeding

c. the drug dopamine

d. Running a sprint

e. Massive myocardial infarction (cardiac tissue death)

Please submit your answers in a PDF file with file name format: SURNAME_FIRSTNAME _CARDIO.