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Hepatitis B > Architecture of the CVS > Flashcards

Architecture of the CVS Flashcards

1
Q

Is the CVS a closed or open system

A

Closed

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2
Q

Function of the CVS

A

To delivery oxygen and nutrients and to remove carbon dioxide and waste products

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3
Q

Shape and size of heart

A

Fist sized and pyramidal shaped

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4
Q

Where is the apex of the heart

A

Away from the midline

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5
Q

Where is the base of the heart

A

Towards the midline

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6
Q

What level of thoracic vertebrae is the heart

A

4th and 5th

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7
Q

Function of vena cava

A

Bringing deoxygenated blood to the heart

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8
Q

Function of aorta

A

Taking oxygenated blood away from the heart

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9
Q

Function of pulmonary artery

A

Taking deoxygenated blood away from the heart to the lungs

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10
Q

Function of pulmonary vein

A

Taking oxygenated blood to the heart from the lungs

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11
Q

Alternative name for bicuspid valve

A

Mitral valve

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12
Q

Parts of the aorta

A

Ascending, arch and descending

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13
Q

Differences between arteries and veins

A

Arteries: carry blood away, thick walls, elastic, no valves, high pressure, no valves,
Veins: carry blood in, thin walls, less elastic, valves

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14
Q

Arteries description

A

Small round lumen, thick muscular wall, elastic - thick tunica media

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15
Q

Veins description

A

Large collapsable lumen, thin muscular wall, less elastic - thinner tunica media

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16
Q

Capillary description

A

Very small lumen, wall made of a single layer of cells

17
Q

What is systole

A

Contraction of the heart

18
Q

What is diastole

A

Relaxation of the heart

19
Q

How many times does the cardiac cycle occur per minute

20
Q

Pressure of pulmonary and systemic circulation

A

Pulmonary - low pressure

Systemic - high pressure

21
Q

Adaptations of the aorta

A

Thick muscular wall, elastic

22
Q

What is compliance

A

The ability of a vessel to respond to an increase in pressure by distending or swelling

23
Q

Purpose of valves

A

Prevent back flow of blood

24
Q

What is cardiac output

A

The amount of blood pumped by each side of the heart in one minute

25
Q

What is stroke volume

A

The amount of blood pumped by each ventricle in one contraction

26
Q

Formula for CO

A

CO = HR X SV

27
Q

What is peripheral resistance

A

The resistance to flow in the arterial circulation determined in the main by the arterioles

28
Q

Formula for BP

A

BP = CO X PR

29
Q

Normal blood pressure range

A 
Systolic = 110-140 mm Hg
Diastolic = 75- 80 mm Hg
30
Q

Hypotension blood pressure range

A

Less than 110 mm Hg - low systolic

31
Q

Hypertension blood pressure range

A

Greater than 140 mm Hg - high systolic

32
Q

Formula for mean arterial pressure

A

MAP = SDP - 2(DBP)/3

33
Q

Formula for pulse pressure

A

PP = SBP - DBP

Hepatitis B (39 decks)

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