bloodflow, heart
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Name the chambers of the heart | show 🗑
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| which chamber has very thin myocardium? | show 🗑
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| what divides the atria? | show 🗑
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| Where is fossa ovalis found? | show 🗑
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| show | auricles
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| pumps blood to lungs and body | show 🗑
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| blood flow pathway | show 🗑
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| show | generate action potential over & over in rhythmical pattern;
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| The _______ side of your heart moves blood through about ______ miles of blood vessels. | show 🗑
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| The heart beats about ___________ times per day | show 🗑
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| show | small upward deflection in electrocardiogram
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| What is a purkinje fiber? | show 🗑
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| everything associated with one heartbeat is considered | show 🗑
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| when atria are in systole ____________ are _______________. | show 🗑
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| show | systole
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| What is diastole? | show 🗑
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| show | arrhythmia
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| show | atrial flutter, atrial fibrilation, ventricular fibrilation
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| which type of arrythmia is dangerous? why? | show 🗑
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| what are the phases of the cardiac cycle | show 🗑
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| What is cardiac output? | show 🗑
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| show | stroke volume and heart rate CO= SV x HR
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| when stroke volume increases, cardiac output ________________ | show 🗑
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| show | Frank starling law of the heart; forcefullness of fibers; and pressure
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| The stretching of the heart chamber - the more you stretch the heart, the more forcefully it will contract. rubber band effect. | show 🗑
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| show | Autonomic Nervous System
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| regulation of the heart originates in | show 🗑
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| show | vagus and cardiac accelerator nerves.
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| What does SA node stand for? | show 🗑
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| show | oxygen
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| It is not uncommon for athletes to have this. Why does this happen? | show 🗑
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| show | tongue
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| the left side of your heart is responsible for | show 🗑
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| Right side of heart is for | show 🗑
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| the muscle wall of the heart is called | show 🗑
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| the right ventricle pumps to | show 🗑
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| show | coronary circulation
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| show | the superior vena cava or the inferior vena cava
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| The nervous system of the heart aka | show 🗑
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| show | to generate action potentials; to take action potential & send it (conduct it) out to rest of heart (conduct is out to muscle fibers)
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| first action potential in conduction occurs | show 🗑
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| once first action potential fires in the SA Node | show 🗑
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| action potential will then be handed off from SA Node to the | show 🗑
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| show | the slowing down of the action potential so the atria can finish contraction and empty their blood into the ventricles
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| show | Atrioventricular Bundle or AV Bundle
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| old name for AV bundle | show 🗑
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| The is the site where the action potential is being handed | show 🗑
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| from the AV bundle, | show 🗑
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| Bundle branches descend to | show 🗑
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| show | The bundle branches break into tiny small fibers called purkinje fibers
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| show | from bottom of ventricles and spread it up over the ventricles encasing all of that myocardium.
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| as soon as action potential hits the purkinje fibers | show 🗑
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| The contraction of the ventricles | show 🗑
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| The major events of the conduction system are | show 🗑
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| The contraction of the atria occurs | show 🗑
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| the contraction of the ventricles occur | show 🗑
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| show | Brain is hooked to SA Node to slow down heart when sleeping
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| show | SA Node
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| show | The av node takes over, but is slower
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| show | The av bundle takes over, but too slow and brain damage begins to occur
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| show | p wave, QRS complex, t wave
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| show | p wave
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| as p wave is depolarized, what happens? | show 🗑
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| Why can't we see Atrial repolarization on an EKG? | show 🗑
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| show | nicotine (stim), alcohol (dep), anxiety (triggers sympathetic nervous system and increate HR)
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| Fibra refers to | show 🗑
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| show | fibrillation
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| show | medulla oblongata in mesoncephalon
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| show | cardiac accelerator in sympathetic nervous system-2 motor neuron efferent pathway where postganglionic neuron uses norepinephrine to speed up HR.AND VAGUS nerve, also a 2 motor neuron efferent pathway but post ganglionic neuron uses ach to slow
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| Calcium does what to HR | show 🗑
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| potassium does what to MAP? | show 🗑
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| show | blood reservoirs
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| blood vessels | show 🗑
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| arterioles have three layers | show 🗑
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| hollow space in a blood vessel | show 🗑
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| vasoconstriction does what to blood pressure? | show 🗑
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| show | vasodilation - and it decreases blood pressure
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| what is the site for nutrient and waste exchange? | show 🗑
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| show | capillaries
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| capillaries connect arterioles to | show 🗑
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| show | Tissue
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| The tissue will remove the oxygen and nutrients and will replace it with ___________ and _____________ | show 🗑
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| blue deoxygenated blood will leave the capillary bed and enter into the __________ | show 🗑
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| show | diffusion (high concentration to low concentration) and bulk flow (hi pressure to low pressure)
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| veins and venules have ___________. main difference between vein/veinules and arteries | show 🗑
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| when a vein loses elasticity it creates _____ | show 🗑
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| what is the biggest antagonist of circulatory system below the heart? | show 🗑
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| show | mercury how we measure pressure
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| show | lowest in entire body at 0mmHg
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| show | highest in entire body at 80-100mmHg
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| Blood pressure is measured in ____ of ___ | show 🗑
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| blood pressure is highest in _______ | show 🗑
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| show | mean arterial pressure (specific name for blood pressure)
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| MAP is the outcome of 2 products _____ | show 🗑
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| What is TPR? | show 🗑
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| What can affect TPR? | show 🗑
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| if you change your blood volume, it changes your blood pressure because of | show 🗑
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| An increase in blood volume is going to increase ____________ | show 🗑
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| if cardiac output doubles and total peripheral resistance goes down by 50%, what is the net change in MAP? | show 🗑
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| show | blood flow
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| show | where their partial pressure is high to where their partial pressure is low
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| Air is a mixture of gases, each gas has its own __________ ___________ to add up to the total atmospheric pressure | show 🗑
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| show | hemoglobin
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| show | the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates (
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| show | its partial pressure is low
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| show | the capillaries and tissues
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| External respiration takes place in | show 🗑
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| show | 4
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| What uses ___________ and produces _____________. | show 🗑
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| The concentration of __________ is greater in the mitochondria so it ___________________ | show 🗑
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| What regulates acidity in the body? | show 🗑
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| show | CO2
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| show | In the lungs and blood it is the same,; in the tissues, it is lower.
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| show | norepinephrine.
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| show | atrial naturetic peptide
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| show | renin-angiotensin-aldosterone (pathway), epi & norepi, antidiuretic hormone
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| In the renin-angiotensin-aldosterone pathway, what does the liver secrete? | show 🗑
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| show | atrial fibrillation
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| show | ventricular fibrillation - no O2 is being moved
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| How does sodium affect Mean Arterial Pressure? | show 🗑
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| Angiotensin II does what? | show 🗑
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| Angiotensin I comes from where? | show 🗑
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| the kidneys use ___________ to monitor your blood pressure. Their job is to _____. | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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