3.1 Heart Stuff Flashcards
Artery characteristics
-thick walls
-pump blood directly out of heart
-no valves
-has outer elastin
Vein characteristics
-only has inner elastin
-weaker walls
-pumps deoxygenated blood into heart
-has valves
Coronary arteries
The arteries that supply oxygenated blood to the heart
Types of coronary arteries
-left coronary artery (supplies to left side)
-left interior descending artery (supplies to front and left side)
-circumflex artery (supplies outer side and back)
-right coronary artery (supplies to nodes, and right chambers
Capillary function
The blood vessels that connect your arteries and veins, where oxygen is exchanged for oxygen
Coratid artery vs jugular vein
Carotid supplies blood to the head
Veins takes deoxygenated blood back to heart
Areas where you have/major arteries (upper body)
-subclavian (collar bone)
-axillary (shoulder)
-brachial (upper arm)
-radial (lower arm, thumb side)
-ulnar (lower arm, pinky side)
Areas where you have/major lower body arteries
-descending aorta (back)
-iliac artery (pelvis)
-femoral artery (femoral)
-popliteal artery (knee)
-dorsal pedis (foot)
Areas where you have/major upper body veins
-superior vena cava (coming out the heart)
-jugular vein (neck)
-subclavian vein (collar bone)
-axillary vein (upper arm-ish)
-cephalic vein (radial/thumb side)
-basilic vein (ulnar/pinky side)
Areas where you have/major lower body veins
-inferior vena cava (coming out the heart)
-iliac vein(hip)
-femoral vein
-popliteal vein (knee)
-dorsal pedis (foot)
What is varicose vein?
The enlarging/bulging of a vein. Can be caused by increased blood pressure or damage to blood vessels/valves (causing build up) arteries can’t get varicose because they don’t have valves
Systolic vs diastolic
S/D
Systole, heart contracts
Diastole, hearts at rest
What’s a normal blood pressure
120/80 (something close to that range)
Stroke volume
The amount of blood being pumped through your heart
Cardiac output
A measure of how much blood is being pumped by both ventricles in one minute
Cardiac output formula
Cardiac output (mL/min) = heart rate (b/min) x stroke volume (mL/b)
Hypo vs hyper
Hypo = under
Hyper = high/over
Abi (ankle-brachial index)
Found by taking systolic of brachial vein divided (/) by the systolic of an ankle or pedis vein
Normal ABI
Between 0.9 to 1.5
what is PAD?
Loss of blood/blood flow in extremities (legs/arm) caused by a plaque build up, can lead to clotting
What is bradycardia ?
A slow heart rate caused by possible underlying conditions, causes less oxygen to get to organs,can lead to serious issues.
Arrhythmia
A problem with heart rate or heart rhythm
Pulmonary loop
Right side of the heart picks up deoxygenated blood and takes it to the lungs
Systemic loop
Left side of heart moves the blood to throughout the body
Pulmonary circulation
The system of transportation that moves the de oxygenated blood from heart to lung
Systemic circulation
moves blood between heart to rest of body
