A level (3.1.2 Transport in Animals) Biology Fichas sobre The Structure of the Heart and the Cardiac Cycle, creado por Yinka F el 01/02/2018.
|
|
Creado por Yinka F
hace más de 6 años
|
|
Cerrar
|
|
Creado por Yinka F
hace más de 6 años
|
|
Describe the structure of the heart
What are the valves held in place by?
What is the role of valves?
Complete the sentences:
If there is a __________ pressure behind a valve, it is forced open. If there is a higher pressure in front of the valve, it is forced _________. This means that the flow of blood is _____________ - it only flows in ______ ____________
What is the role of the cardiac cycle?
Within the human heartbeat, you can hear a 'lub-dub' sound. What is the 'lub' and the 'dub' sound caused by?
What are the 3 stages of the cardiac cycle?
What happens during atrial systole?
What happens during ventricular systole?
What happens during diastole?
