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Clin Med 2 > Cardio 1 > Flashcards

Cardio 1 Flashcards

1
Q

Where is the heart located (specifically) within the chest cavity?

A

Mediastinum

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2
Q

Mediastinum =

A
  • area above the diaphragm

- between lungs

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3
Q

What are the components of the heart wall?

A
  • pericardium
  • myocardium
  • endocardium
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4
Q

Pericardium

A
  • double-walled sack

- 2 layers

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5
Q

What are the two layers of the pericardium?

A
  • parietal (outer)

- visceral (inner)

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6
Q

What separates the parietal and visceral layers of the pericardium?

A
  • pericardial cavity

- fluid

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7
Q

Myocardium =

A
  • thickest layer of the heart wall

- made of cardiac muscle

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8
Q

Endocardium =

A
  • internal lining of heart

- connective tissue and squamous cells

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9
Q

Pulmonary circulation occurs in the (R/L) heart

A

Right

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10
Q

Systemic circulation occurs in the (R/L) heart

A

Left

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11
Q

Pulmonary circulation pumps blood through

A

Lungs

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12
Q

Systemic circulation pumps blood through

A

Entire body

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13
Q

What are the types of valves in the heart?

A
  • atrioventricular valves

- semilunar valves

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14
Q

What are the atrioventricular valves?

A
  • tricuspid

- mitral

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15
Q

Tricuspid valve

A
  • R AV

- 3 cusps (flaps)

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16
Q

Mitral valve

A
  • L AV

- bicuspid

17
Q

What are the semilunar valves?

A
  • pulmonic

- aortic

18
Q

Pulmonic valve: where does it pump from/to?

A

RV » pulmonary artery (trunk)

19
Q

Aortic valve: where does it pump from/to?

A

LV » aorta

20
Q

What are the great vessels of the heart?

A
  • superior/inferior vena cavae
  • pulmonary artery (trunk)
  • pulmonary veins
  • aorta
21
Q

Superior/inferior vena cavae: function

A

Blood return to the heart

22
Q

Pulmonary artery function

A
  • takes deoxygenated blood from heart to lungs

- right and left pulmonary arteries

23
Q

Pulmonary veins: function

A

Return oxygenated blood to heart

24
Q

Aorta: function

A

Pumps from LV to body

25
Q

What are the coronary vessels?

A
  • Right coronary artery
  • Left coronary artery
  • Collateral arteries
  • Coronary capillaries
  • Coronary veins
  • Coronary lymphatic vessels
26
Q

The right coronary artery splints into the

A
  • conus
  • right marginal branch
  • posterior descending branch
27
Q

The left coronary artery splits into the

A
  • left anterior descending artery

- circumflex artery

28
Q

Which of the coronary vessels is known as the widowmaker?

A

Left anterior descending artery (LAD)

29
Q

What do coronary capillaries do?

A
  • exchange O2 and nutrients

- feeds into veins

30
Q

Coronary veins deal with

A

Circulation within the heart itself, not peripheral circulation

31
Q

What are the coronary veins?

A
  • coronary sinus
  • great cardiac vein
  • posterior vein of the left ventricle
32
Q

Coronary lymphatic vessels: where do they drain?

A

» Mediastinal lymph nodes

»» Superior vena cava

Clin Med 2 (78 decks)

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