Questions about
Animal Circulation

What are the differences between open and closed circulatory systems and what are the advantages and disadvantages of each?

Describe blood flow through the mammalian heart.

What are heart rate and stroke volume and how are they affected by exercise?

What are the changes in blood pressure and blood flow that occur during contraction of the mammalian heart?

What changes occur to the mammalian fetus after birth?

What is an electrocardiogram and what are its visible components when one is printed out?

What are the effects of sodium and potassium influx on cardiac action potential and how does cardiac action potential differ from the action potentials of other cells?

Describe the function of pacemaker cells and tell what makes them automatic.

What are the four main functions of arteries?

Explain the importance of blood pressure in the arterial system and how it is regulated.

What are the three types of capillaries?

What adaptations in fish have evolved to better suit air breathing fish and water breathing fish in relation to heart function?

Describe some adaptations of air-breathing diving animals which allow them to stay submerged for long periods of time.

What is the lymphatic system and what are its uses?