Print Exercise 31: Conduction System of the Heart and Electrocardiography flashcards - Easy Notecards

Print Options

← Back to notecard set|Easy Notecards home page

Instructions for Side by Side Printing

Print the notecards
Fold each page in half along the solid vertical line
Cut out the notecards by cutting along each horizontal dotted line
Optional: Glue, tape or staple the ends of each notecard together

To print: Ctrl+PPrint as a list

18 notecards = 5 pages (4 cards per page)

Exercise 31: Conduction System of the Heart and Electrocardiography

front 1 LIST THE ELEMENTS OF THE INTRINSIC CONDUCTION SYSTEM IN ORDER, STARTING FROM THE SA NODE.	back 1 SA NODE -> ATRIOVENTRICULAR (AV) NODE -> ATRIOVENTRICULAR (AV) BUNDLE -> BUNDLE BRANCHES -> PURKINJE FIBERS
front 2 AT WHAT STRUCTURE IN THE TRANSMISSION SEQUENCE IS THE IMPULSE TEMPORARILY DELAYED? WHY?	back 2 ATRIOVENTRICULAR (AV) NODE; THIS DELAY IS IMPORTANT BECAUSE IT ENSURES THAT THE ATRIA HAVE EJECTED THEIR BLOOD INTO THE VENTRICLES FIRST BEFORE THE VENTRICLES CONTRACT.
front 3 EVEN THOUGH CARDIAC MUSCLE HAS AN INHERENT ABILITY TO BEAT, THE NODAL SYSTEM PLAYS A CRITICAL ROLE IN HEART PHYSIOLOGY. WHAT IS THAT ROLE?	back 3 GENERATE ACTION POTENTIALS AT A GREATER FREQUENCY THAN OTHER CARDIAC MUSCLE CELLS, THEY ARE THE PACEMAKER OF THE HEART. THEREFORE, IT SETS THE HEARTRATE UNDER NORMAL CIRCUMSTANCES
front 4 DEFINE ECG	back 4 THE GRAPHIC RECORDING OF THE ELECTRICAL CHANGES (DEPOLARIZATION FOLLOWED BY REPOLARIZATION) OCCURING DURING THE CARDIAC CYCLE.

front 5 DRAW AN ECG WAVE FORM REPRESENTING ONE HEARTBEAT. LABEL THE P, QRS, AND T WAVES; THE P-R INTERVAL; THE S-T SEGMENT, AND THE Q-T INTERVAL.	back 5
front 6 WHY DOES HEART RATE INCREASE DURING RUNNING?	back 6 IN GREATER DEMAND WHEN OUR BODY IS UNDER THAT KIND OF STRAIN. THE HEART MUST BEAT FASTER AND HARDER IN ORDER TO DELIVER THE LARGER AMOUNT OF BLOOD TO MUSCLES BEING USED WHEN RUNNING.
front 7 DESCRIBE WHAT HAPPENS IN THE CARDIAC CYCLE IN THE FOLLOWING SITUATIONS. IMMEDIATELY BEFORE THE P WAVE	back 7 HEART IS IN DIASTOLE
front 8 DESCRIBE WHAT HAPPENS IN THE CARDIAC CYCLE IN THE FOLLOWING SITUATIONS. DURING THE P WAVE	back 8 DEPOLARIZATION OF ATRIA

front 9 Ok, so you’re using my notecards which is great. I am glad I could help you out cause I wish I had someone to help me out when I took this course. I know Anatomy is super hard.	back 9 I only ask that if you find these notecards helpful, you join Easy Notecards and create at least one notecard set to help others out. It can be for any subject or class. Thanks and don’t forget to rate my helpfulness!
front 10 DESCRIBE WHAT HAPPENS IN THE CARDIAC CYCLE IN THE FOLLOWING SITUATIONS. IMMEDIATELY AFTER THE P WAVE (P-R SEGMENT)	back 10 CONTRACTION OF ATRIA
front 11 DESCRIBE WHAT HAPPENS IN THE CARDIAC CYCLE IN THE FOLLOWING SITUATIONS. DURING THE QRS WAVE	back 11 DEPOLARIZATION OF VENTRICLES
front 12 DESCRIBE WHAT HAPPENS IN THE CARDIAC CYCLE IN THE FOLLOWING SITUATIONS. IMMEDIATELY AFTER THE QRS WAVE (S-T INTERVAL)	back 12 CONTRACTION OF VENTRICLES

front 13 DESCRIBE WHAT HAPPENS IN THE CARDIAC CYCLE IN THE FOLLOWING SITUATIONS. DURING THE T WAVE	back 13 REPOLARIZATION OF VENTRICLES
front 14 TACHYCARDIA	back 14 A HEART RATE OVER 100 BEATS/MIN
front 15 BRADYCARDIA	back 15 A HEART RATE BELOW 60 BEATS/MIN
front 16 FIBRILLATION	back 16 RAPID, UNCOORDINATED HEART CONTRACTIONS THAT MAKES HEART USELESS AS A PUMP

front 17 WHICH WOULD BE MORE SERIOUS, ATRIAL OR VENTRICULAR FIBRILLATION? WHY?	back 17 VENTRICULAR FIBRILLATION, BECAUSE WHEN YOUR IN V-FIB YOUR PRETTY MUCH DEAD UNLESS THEY CAN SHOCK YOUR HEART BACK INTO RHYTHM. WITH ATRIAL FIBRILLATION, IT CAN BE TREATED WITH ANTI-RHYTHMIC DRUGS.
front 18 ABNORMALITIES OF HEART VALVES CAN BE DETECTED MORE ACCURATELY BY AUSCULTATION THAN BY ELECTROCARDIOGRAPHY. WHY IS THIS SO?	back 18 ABNORMAL HEART VALVES CAUSE EXTRA HEART SOUNDS (S3 AND S4) THAT CAN BE HEARD WITH A STETHOSCOPE. AN ECG JUST MEASURES ELECTRICAL ACTIVITY IN THE HEART, IT REALLY DOESNT HAVE ANYTHING TO DO WITH HOW THE VALVES WORK.