Cardiovascular system

KEY TERMS
1. CARDIAC OUTPUT = the amount of blood pumped out of the heart per minute
2. HEART RATE = the number of times the heart beats per minute
3. STROKE VOLUME = the amount of blood pumped out of the heart per beat
4. CARDIAC OUTPUT = STROKE VOLUME X HEART RATE
SHORT TERM EFFECTS OF EXERCISE
1. Heart beats stronger and faster
  1. because the working muscles immediately need more oxygen/blood to give them energy
2. Blood pressure increases
LONG TERM EFFECTS OF EXERCISE
1. Stroke volume increases
2. cardiac output increases
3. Resting heart rate decreases
4. Heart size increases
5. Recovery rate is quicker
6. Lowers normal resting blood pressure
7. Reduced risk of coronary heart disease as veins, arteries and blood vessels are healthier
EFFECTS OF REST
1. Allows the heart to increase in size and the number of capilleries
EFFECTS OF DIET
1. A healthy diet can reduce bad cholesterol (LDL) level therefore reducing normal blood pressure
EFFECTS OF DRUGS
1. Smoking increase heart rate and blood pressure
  1. Alcohol also increases blood pressure

Resource summary

	Created by sophie.trigg almost 11 years ago