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Cardiovascular System
chapter 20 Bio 211
38
Anatomy
Undergraduate 1
09/12/2016

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Cards

Term
CARDIAC OUTPUT
Definition

AMT OF BLOOD PUMPED OUT OF VENTRICLES  

PER MINUTE

Term
STROKE VOLUME
Definition
AMOUNT OF BLOOD THAT LEAVES THE HEART DURING ONE BEAT
Term
HEART RATE
Definition

# OF BEATS PER MINUTE 

(BPM)

Term

CARDIAC OUTPUT (CO)

IS DETERMINED

Definition
HRxSV=CO
Term
BRADY CARDIA
Definition
BEATS BELOW 60
Term
TACHY CARDIA
Definition

BEATS OVER 100

FAST HEART BEAT

Term
SYSTOLE
Definition
CONTRACTION OF HEART CHAMBER
Term
DIASTOLE
Definition
RELAXTATION OF HEART CHAMBER
Term
END DIASTOLIC VOLUME
Definition
VOLUME OF BLOOD LEFT IN VENTRICLES AFTER ATRIAL CONTRACTION
Term
END SYSTOLIC VOLUME
Definition
AMT OF BOLLD IN VENTRICLES AFTER VENTRICULAR CONTRACTION
Term
HOW IS ESV CALCULATED
Definition
EDV-SV= ESV
Term
LUBB
Definition
AV VALVES CLOSING
Term
DUBB
Definition
SEMILUNAR VALVES CLOSING
Term
HEART MURMUR
Definition
ABNORMAL HEART SOUNDS RESULTS FROM TURBULENCE OF BLOOD PASSING THRU HEART
Term
CHRONTROPIC AGENTS
Definition
VARIABLES THAT EFFECT HEART RATE
Term
POSITIVE CHRONOTROPIC AGENTS
Definition
INCREASES HEART
Term
NEGATIVE CHRONOTROPIC AGENTS
Definition
DECREASES HEART RATE
Term
POSITIVE CHRONOTROPIC EXAMPLES
Definition

COCAINE, CAFFINE, EXERCISE, NICOTINE, TH

EPI, SYMPATHETIC NERVOUS SYSTEM STROKE VOLUME

Term
EXAMPLES OFNEGATIVE CHRONOTROPIC
Definition

BETA BLOCKERS

 

(BLOCK ACTIVITY OF EPINEPHINE AND NONEPI)

Term
GAP JUNCTION
Definition
PROTEIN CHANNELS THAT ALLOW PASSAGE FOR NUTRIENTS- ALLOW ACTION POTENTIAL TO TAKE PLACE & MOVE DOWN THE SARCOLEMMA
Term

METABOLISM OF CARDIAC MUSCLE

 

Definition

REQUIRES EXTENSIVE BLOOD SUPPLY

MITOCHONDRIA FOR ENERGY

EXTENSIVE MYOGLOBIN

RELY ON AEROBIC CELLUAR RESPIRATION (OXYGEN)

Term
PERFUSION
Definition
DELIVERY OF BLOOD PER TIME PER GRAM OF TISSUR
Term

CARDIAC MUSCLE CONTRACTION

PATTERN

Definition

ATRIAL CONTRACTION- COMPRESSES AND MOVE BLOOD TO VENTRICLES

VENTRICLE CONTRACTION- BEGINS AT APEX AND MOVES UPWARD COMPRESSES SUPERIORLY AND MOVES BLOOD OUT OF THE HEART

Term
HEART CONDUCTION SYSTEM
Definition

SINOATRIAL NODE(SA NODE)- PACEMAKER OF HEART IN POSTERIOR WALL OA ATRIUM

ATIOVENTRICULAR NODE(AV NODE)- ALSO CALLED AV BUNDLE, IN FLOOR OF RT ATRIUM NEXT TO OPENING OF CORONARY SINUS

ATIOVENTRICULAR BUNDLR(BUNDLE OF HIS)- EXTENDS FROM AV NODES THRU AV SEPTUM AND THE SPLITS INTO RT/LF AV BUNDLES

PURKINJE FIBERS-EXTENT FROM THE AV BUNDLES & TRAVEL UP THE HEART WALL

Term

HEART CONDUCTION SYSTEM

( STIMULATION OF THE HEART)

Definition

SA NODES INITIATES CONTRACTION

ACTION POTENTIAL CONDUCTED THRU ATRIA

ACTION POTENTIAL SPREAD DOWN SARCOLEMMA OF CARDIAC MUSCLE FIRST IN ATRIA AND THEN VENTRICLES

THIN & THICK FILAMENTS SHORTEN & MUSCLE CONTRACTS

Term
SYMPATHETIC INNERVATIONS OF THE HEART
Definition

CARDIOACCELERATORY CENTER SENDS SIGNALS TO SYMPATHETIC NERVES TO NCREASE HEART RATE AND FORCE CONTRACTION 

FAST

Term
PARASYMPATHETIC INNERVATION OF THE HEART
Definition
CADRIOINHIBITOTY CENTER SENDS SIGNAL TO VAGUS NERVE TO DECREASE HEART RATE AND FORCE OF CONTRACTION
Term
ATRIAL RELEXES
Definition
PROTECT THE HEART FROM OVERFILLING /STIMULATED BY INCREASE OF VENOUS RETURN
Term
WHAT DOES DECREASED PERFUSION STIMULATED
Definition
SNS TO INCREASE HR/SV/VASODILATION
Term
REFLEX CONTROL
Definition
MORE PERMABLE TO Na=MORE HEARTBEATS
Term
cardiac muscle cell ECG reading
Definition

P WAVE

QRS WAVE

T WAVE

Term
P WAVE
Definition
ATRIAL DEPOLARIZATION
Term
QRS WAVE
Definition

ATRIAL REPOLARIZATION AND VENTRICULAR DEPOLARIZATION{H=THE MORE ELECTRICTY YOU HAVE THE MORE SPIKES U HAVE

 

Term
T WAVE
Definition
VENTRICULAR REPOLARIZATION
Term
PQ WAVE
Definition
ATRIAL PLAUTEAU PHASE
Term
ST WAVE
Definition
VENTRICLE PLATEAU PHASE
Term
AVR
Definition

REVERSE OF THE HEART

EKG LEAD #2

GOES FROM SA NODE TO AV NODE

INVERTED P WAVE IS TO CONFIRM SLOW HEART RATE

AV NODE FIRING INSTEAD OF SV NODE

Term
AVR
Definition

REVERSE OF THE HEART

EKG LEAD #2

GOES FROM SA NODE TO AV NODE

INVERTED P WAVE IS TO CONFIRM SLOW HEART RATE

AV NODE FIRING INSTEAD OF SV NODE

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