Chapter 13 - the heart Flashcards

1
Q
  • abnormally rapid heart rate
  • heart rate greater than 100
A

Tachycardia

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2
Q
  • covey heart sounds to the examiner’s ear
  • can detect a murmur
A

function of the stethoscope

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3
Q
  • abnormally slow heart rate
  • less than 60 beats per minute
A

bradychardia

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4
Q
  • a heart sound resulted from ventricular filling
  • considered normal
A

functional murmur

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5
Q

symptoms indicating activation of the Sympathetic division

A
  • increased heart rate
  • dilated pupils
  • sweating
  • increased alertness
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6
Q
  • impulses travelling from SA node to AV node
  • SA node-Bundle of HIS-Purkinje fibers
  • a group of specialized cells that conduct electrical impulses in the heart
  • impulses travel from the sinoatrial node (SA node) to the atrioventricular node (AV node)
A

Internodal pathway

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7
Q

conducting cells to help determine heart rate

A

Sinoatrial (SA) nodes

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8
Q

factors contributing to cardiac output

A

stroke volume x heart rate

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9
Q

heart parts contracting during systole and diastole

A

ventricles contract during systole, and atria contract during diastole

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10
Q

circulation of blood within the blood vessels of the heart muscle

A

Coronary circulation

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11
Q

a vein that collects blood from the heart muscle and drains it into the right atrium

A

coronary sinus

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12
Q

Positioned at the exits of the heart’s ventricles

A

semilunar valves

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13
Q

located in the pulmonary artery

A

pulmonary valve

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14
Q

located in the aorta

A

aortic valve

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15
Q
  • located between the right atrium and right ventricle
  • also known as the right atrioventricular valve
A

tricuspid valve

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16
Q

wall separating the right and left atria

A

interatrial septum

17
Q

chambers of the heart

A
  • right atrium
  • right ventricle
  • left atrium
  • left ventricle
18
Q

right side of heart pumps blood to…

A

lungs (pulmonary circulation)

19
Q

left side pumps blood to…

A

rest of the body (systemic circulation)

20
Q

muscular layers of the heart

A
  • epicardium
  • myocardium
  • endocardium
21
Q

membranes surrounding the heart

A

Pericardium (outer fibrous layer and inner serous layer)

22
Q

specialized cell junctions in cardiac muscle that allow for rapid conduction of electrical impulses

A

intercalated disks

23
Q

test using sound waves to produce images of the heart

A

Echocardiogram

24
Q

test that measures the electrical activity of the heart

A

Electrocardiogram

25
using X-rays to visualize deep structures
Fluoroscopy
26
Imaging test that uses X-rays to view blood vessels
Angiogram
27
Branches from the aorta
coronary arteries
28
pulmonary artery carries...
deoxygenated blood from the heart to the lungs
29
pulmonary vein carries...
oxygenated blood from the lungs to the heart
30
Function of the coronary sinus
collects blood from the myocardium
31
Normal pacemaker of the heart
Sinoatrial (SA) node, located in the right atrium
32
Does activating the parasympathetic nervous system increase or decrease heart rate?
activating the parasympathetic nervous system decreases heart rate
33
Closing of the AV valves
LUBB sound
34
closing of the semilunar valves
DUBB sound
35
atria are the...
blood receiving
36
ventricle are the...
blood pumping
37
right side of heart pumps to...
the lungs
38
left side of heart pumps to...
heavily oxygenated blood to all parts of the body