Cardiovascular System Flashcards
Heart rate
The number of times your heart beats per minute
Stroke volume
The amount of blood leaving the heart in each beat
Systolic blood pressure
The pressure when blood is being pumped out of the heart
What is the cv system made up of
The heart
Blood vessels
The blood
What are the immediate effects of exercise on the cv system
Increased HR
Increased stroke volume
Increased systolic blood pressure
Increased oxygen delivery and increased removal of carbon dioxide
Increased rate of blood flow
What is the role of the cv system in exercise
Transport oxygen in the blood to working muscles
Remove waste products
Return oxygen to the lungs for oxygenation
What are the long term effects of exercise on the cv system
Cardiac hypertrophy
Increased stroke volume
Lower resting HR
Increased number of capiliaries and red blood cells
Reduced Chance of coronary heart disease
The heart can contracts more forcefully so lowered resting HR
More blood leaves the heart in each beat so more oxygen is delivered
The heart has to beat less times to have the same effect
Recovery rate is increased
Cardiac output=
Heart rate X stroke volume
What is blood pressure
The force of blood pushing against the blood vessel walls as it travels around the body
Systolic is when the heart contracts
Diastolic is then the heart is relaxing
Systolic is higher than diastolic
What is cholesterol
Low density lipoprotein is bad cholesterol that causes deposits to build up in the arteries which makes it harder for blood to circulate and can lead to heart disease as well as increased blood pressure
High density lipoprotein is good cholesterol that takes away cholesterol to be broken down
It is caused by too much saturated fat in the body
How does an unhealthy diet effect blood pressure
Fats can build up in the blood vessels causing high blood pressure and cholesterol
What are the long term benefits of regular exercise on blood pressure
Lowers resting blood pressure
Lowers cholesterol levels
Reduces chance of stroke of coronary heart disease
