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BMS 251 Lab > Quiz 2 > Flashcards

Quiz 2 Flashcards

1
Q

Receives blood returning from the heart

A

Atrium

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2
Q

Prevents back flow of blood

A

Valves

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3
Q

Pumps blood throughout the body

A

Ventricles

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4
Q

to prevent inversion or prolapse of valves

A

Papillary muscle

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5
Q

supply blood to the heart muscle

A

Coronary artery

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6
Q

return deoxygenated blood to the right atrium of the heart

A

Coronary vein

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7
Q

transporting de-oxygenated blood from the right ventricle to the lungs

A

Pulmonary artery

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8
Q

carrying oxygenated blood from the lungs back to the left atrium of the heart

A

Pulmonary vein

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9
Q

carries blood away from the left ventricle and circulates it into the systemic circuit

A

Aorta

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10
Q

Brings blood to right atrium

A

Vena Cava

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11
Q

Attached to papillary muscle and atrioventricular valves to prevent back flow of blood

A

Chordae Tendinea

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12
Q

Separates ventricles of heart

A

Posterior interventricular sulcus

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13
Q

Lines the heart to prevent over inflation of the heart

A

Pericardial membrane

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14
Q

Valves attached to major arteries/veins

A

Semilunar valves

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15
Q

Keeps the heart beating

A

Sinoatrial node

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16
Q

Backup pacemaker

A

Atrioventricular node

17
Q

Signals muscle cells to contract

A

Purkinje fibers

18
Q

What is the conduction pathway through the heart?

A

SA node, AV node, AV bundle, Purkinje fibers

19
Q

Composite recording of all action potentials produced by nodal and myocardial cells

A

ECG

20
Q

Atrium contract/polarizes

A

P wave

21
Q

Atria relaxes/repolarizes while ventricles contract/depolarize

A

QRS complex

22
Q

Ventricle repolarizes/relaxes

A

T wave

23
Q

What is the healthy heart rate?

A

60-100 bpm

24
Q

How do you calculate heart rate?

A

number of beats/sec x 60 sec/1 min

25
Q

What is the pathway of blood through the heart?

A

Superior/inferior vena cava, right atrium, tricuspid valve, right ventricle, pulmonary semilunar valves, pulmonary trunk, lungs, pulmonary veins, left atrium, bicuspid valve, left ventricle, aortic semilunar valve, ascending aorta, aortic trunk, descending trunk

26
Q

Some p waves don’t have QRS complexes

A

2nd degree AV block

27
Q

Fast heart beat

A

Tachycardia

28
Q

Chaotic electrical activity

A

Ventricular fibrillation

29
Q

Large gap between P and R wave

A

3rd degree AV block

30
Q

T wave points downward

A

T-wave inversion

31
Q

Disturbances in rhythm

A

Atrial fibrillation

32
Q

What’s the difference between coronary and pulmonary?

A 
Coronary= oxygenated 
Pulmonary= deoxygenated

BMS 251 Lab (11 decks)

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