Ch 11b: Cardiovascular System: Heart Flashcards

(35 cards)

1
Q

What is the name of the Atrioventricular (AV) valve on the Right side?

A

Tricuspid Valve

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2
Q

What is the name of the AV valve on the Left side?

A

Bicuspid Valve

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3
Q

What are the 2 Atrioventricular Valves?

A

Tricuspid
Bicuspid

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4
Q

What are the 2 Semilunar (SL) valves?

A

Aortic
Pulmonary

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5
Q

What is the name of the Semilunar valve on the Right side?

A

Aortic valve

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6
Q

What is the name of the Semilunar valve on the left side?

A

Pulmonary Valve

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7
Q

What side is the Pulmonary Circuit on?

A

The right heart

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8
Q

What side is the Systemic Circuit on?

A

The left heart

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9
Q

Heart depolarizes and contracts without what?

A

Nervous system stimulation

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10
Q

Rhythm can be altered by what?

A

Autonomic nervous system

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11
Q

Action potential is initiated by what?

A

Pacemaker cells

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12
Q
  1. The __________________ (pacemaker) generates impulse
A

Sinoastrial (AS) node

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13
Q
  1. The impulses (0.1 sec) is at the ________________
A

Atrioventricular (AV) node

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14
Q
  1. The __________ (bundle of HIS) connects the atria to ventricles
A

AV Bundle

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15
Q
  1. The _____________ conduct the impulses through the interventricular septum
A

Bundle Branches

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16
Q
  1. The _____________ depolarizes the contractile cells of both ventricles
A

Purkinje Fibers

17
Q

Which cardiac innervation is this:

  • Increases heart rate
  • SA and AV nodes
  • Myocardium
  • Coronary arteries
18
Q

Which cardiac innervation is this:

  • Decreases heart rate
  • Mostly innervate SA and AV nodes
A

Parasympathetic

19
Q

What does the P wave do?

A

Atrial depolarization

20
Q

What does QRS complex do?

A

Ventricular depolarization

21
Q

What does the T wave do?

A

Ventricular repolarization

22
Q

What does the P-R Interval do?

A

Beginning of atrial excitation to beginning of ventricular excitation

23
Q

What does the S-T segment do?

A

Entire ventricular myocardium is depolarized

24
Q

What does the Q-T interval do?

A

Beginning of ventricular depolarization through repolarization

25
What is the reason that Atrial repolarization isn't able to get picked up on the ECG?
It's hidden behind the QRS complex
26
What is the first sound of the heart? (lub)
Closing of AV valves at beginning of ventricular systole
27
What is the second sound of the heart (dub)
Closing of SL valves at beginning of ventricular diastole
28
What does the pause between lub-dub indicate?
Heart relaxation
29
What does the cardiac cycle refer to?
1 complete heartbeat Both atria and ventricles contract then relax
30
What does systole mean?
Contraction
31
What does diastole mean?
Relaxation
32
What is the Cardiac Output (CO)?
Amount of blood pumped out of ventricle per minute
33
What is the Stroke volume (SV)?
Amount of blood pumped out of ventricle BEAT
34
What is Heart Rate (HR)?
Beats per minute
35
What is the Cardia Output equation?
CO = HR x SV