Zusammenfassung der Ressource
The Heart And Blood Vessels
- Open/closed circulatory system
- Blood Vessels
- Arteries
- Arterioles
- Veins
- Venules
- Capillaries
- LORD
- Blood pressure
- Double circulation
- Pacemaker
Anmerkungen:
- SA / sino-atrial node
electrical impulses
pulse (pressure wave)
AV node
ECG (electrocardiogram)
- Stages
- Systole - contraction
Anmerkungen:
- approx 0.4 seconds
Atrial systole
Ventricular systole
- Diastole - relaxation
Anmerkungen:
- Smoking, exercise, diet