Anatomy And Physiology Flashcards
Define heart rate
Number of beats per minute
What is the male and females resting heart rate
Males are 70bpm
Females are 72bpm
What is bradycardia
When the resting heart rate is below 60bpm
Define stroke volume
The volume of blood pumped out of the heart per beat
What is the sv trained and untrained
Trained- 110 ml
Untrained- 70ml
Define cardiac output
The volume of blood pumped out of the heart per minute
What is the equation for cardiac output
Cardiac output= stroke volume x heart rate
Define health
A state of complete mental, physical and social wellbeing, free from any physical and mental diseases
Define fitness
The ability to cope with the demand of everyday tasks
Name 3 poor heart conditions and what they are
Angina- lack of blood flow to the heart which causes chest pain
Stroke- fatal blood flow the the brain
Restricted- Ischema
Bleeding- haemorage
Atherosclerosis- Walls of the heart of blocked due to high cholesterol
High blood pressure- force per unit area exerted by the blood on the inside wall of the blood vessel
What is the pathway of blood
- Superior vena cava, interior vena cava
- right atrium
- tricuspid valve
- right ventricle
- pulmonary semilunar valve
- pulmonary artery
- lungs
- pulmonary vein
- left atrium
- bicuspid valve
- left ventricle
- aortic semilunar valve
- aorta
- arteries
- capillaries
- veins
Steps of the heart conduction system
- SA node
- AV node
- Bundle of His
- purkunje fibres (the two ventricles contracts)
- blood pumps out of the aorta
Which nervous system increases the heart rate
Sympathetic nervous system
Which nervous system decreases the heart rate
Parasympathetic nervous system
What do the chemoreceptors, proprioceptor and baroreceptors detect
Co2 levels
Muscle movement
Blood levels
