Cardio Flashcards
These bring oxygenated blood towards the heart, the ONLY veins that carry oxygenated blood
Pulmonary veins
These are large bloods vessels that travel towards the heart
Veins
Blood is taken away from the heart to cells through these, more muscular/thick than veins
Arteries
Blood flows through these and is returned to the heart, flow against gravity
Veins
This node creates electrical impulse that spreads through the heart, stimulates left and right atria to contract
Sinoatrial (SA) node
This node receives the signal and passes it through ventricles
Atrioventricular (AV) node
These muscles squeeze veins to help blood move upwards
Skeletal muscle
This measures electrical impulses coming from the heart, creating a graph
Electrocardiogram (EKG’s)
P wave
Atria contracts
QRS
Ventricles contract
T wave
Ventricles relax and reset
Any irregular heartbeat pattern that does not follow the normal P - QRS -T pattern
Arrhythmia
Rapid or irregular heartbeat, more common
Atrial fibrillation
Hearts beats too slow, 60 beats or lower per min
Bradycardia
Heart beats too fast, 100 beats or higher per min
Tachycardia
The force that blood exerts on the blood vessels
Blood pressure
Measured when the ventricles contract and push blood through arteries, top number
Systolic pressure
Functions of cardio system
- Includes heart and blood vessels
- Delivers oxygen and nutrients to cells
- Removes CO2/waste
Ventricles relax and begin refilling, bottom number
Diastolic pressure
Normal blood pressure range
120-140 over 80-90
Involves transplanting a vein from another part of the body onto the heart
Bypass
This surgery involves a narrow balloon being inserted into a blocked vessel, inflated and expanding the vessel
Angioplasty
