Section 1
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What does the tricuspid valve do? What is it anchored by
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Last updated
6 years ago
Date created
Mar 1, 2020
Cards (79)
Section 1
(50 cards)
What does the tricuspid valve do? What is it anchored by
allows blood to go from right atrium to right ventricle; 3 muscles
What are the 6 types of arrhythmias
Tachycardia, Bradycardia, Flutter, Premature beat, Ectopic Pacemaker, Artificial Pacemaker
Arrhythmia
altered heart rhythm
What is the Cardiac cycle
contraction and relaxation
What are the 2 main circuitsof the heart? and where do they take blood from and to?
pulmonary (heart to lungs) systemic (heart to body cells or organs)
What are the heart partitions/ dividers
inter ventricular septum, inter arterial septum, atrial ventricular septum
Where is your heart
in the mediastinum of thorax (between lungs & above diaphragm)
a bulge in the wall of an artery, formed when blood pressure dilates a weakened area of the vessel: can burst wall of artery
Aneurysm
what is the cardiac conduction pathway
sinoatrial node> atrioventricular node> atrioventricular bundle> bundle branches> purkinje fibers
What is the heart skeleton made of?and what does it do?
rings of connective tissue , provide support
What are the 3 pericardium heart coverings
fibrous, parietal, visceral
What are nervous impulses that regulate heart rate
impulses controlled by your brain
myocardial infarction?
when their is blockage of the coronary artery; causes tissue death
what's an average BP?
120/80
Capillaries size & diameter
smallest blood vessels; smaller diameter
Force of blood against blood vessels
blood pressure?
What the difference between Tachycardia and Bradycardia
Tachycardia-beats abnormally fast Bradycardia- beats abnormally slow
Ateries' structure/ 3layers
Tunica intema(intimate), Tunica media, Tunica extreme(adventitia)
Arterioles' structure
thinner wall than arteries;smaller size in diameter
What 4 veins enter the left atrium
4 pulmonary veins
What circuit is on the left side? What type of blood does it carry?
Systemic circuit, oxygen rich blood
What are the heart chambers
left and right atrium and left and right ventricles
5 types of blood vessels
arteries,arterioles,capillaries,venuels,veins
thinner walls than arteries; carry blood under relatively low pressure; function as blood resivoirs; many have flap like valves
Veins
What shape is the heart?
cone shaped, hollow
What measures arterial blood pressure
Sphygmomanometer
What type of circuits do Blood vessels form?
closed circuit
microscopic vessels that transport blood from the capillaries to veins; thinner walls and less smooth muscle than arterioles
Venules
carry blood away from the heart
arteries
What is a murmur
when your valves are not sealing properly; leakage in your heart causing an extra heart sound
What does the bicuspid valve do? What is it anchored by
allows blood to go from left atrium to left ventricle; 2 muscles
What is the pathway of blood through the heart
right atrium> right ventricle> > pulmonary arteries> pulmonary veins> left atrium> left ventricle> aorta> inferior superior vena cava
How does the heart muscle itself get blood?
aorta divides into right (bring O2 to heart) left coronary artery (takes away carbon dioxide)
When blood travels away from your heart it uses ____________, when it travels to the heart it uses ________
arteries, veins
Whats the difference between atria and ventricles
atria- thin walled, ventricle- thick walls; lower level
What do the lubb and dubb heart sounds mean
lubb: closing of the atria ventricular valves (so ventricles can inject blood) dubb: closing of pulmonary and aortic valves
What circuit is on the right side? What type of blood does it carry?
Pulmonary circuit, oxygen poor blood
Arterioles' function
vasoconstriction and dilation
carries blood to the heart
veins
plack forming on the walls of your arteries
atherosclerosis
What are the 3 layers of the heart
Epicardium, Myocardium, Endocardium
What 3 veins enter the right atrium
superior vena cava, inferior vena cava, coronary sinus
What the size of the heart
size of your fist
Function of heart valves
prevent back flow of blood
Whats the difference between systole and diastole
systole: contraction; (atrial) diastole: relaxation (ventricular)
What is the pulmonary valve
a valve in the pulmonary artery
What is the aortic valve
a valve in the aorta
abnormal and irregular dilations in superficial veins
Varicose veins
What is an EKG and what are the 3 important waves
allows you to measure electrical impulses in your heart : P wave, QRS complex, T wave
Cappillaries' function
deliver oxygen pick up waste; gas exchange
Section 2
(29 cards)