Arterial Physiology Flashcards

(69 cards)

1
Q

The tendency of a body at rest to stay at rest or a body in motion to stay in motion

A

Inertia

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2
Q

The energy of work or motion

A

Kinetic energy

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3
Q

Flow of a liquid in which it travels smoothly in parallel layers

A

Laminar flow

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4
Q

The law that states that the volume flow of a liquid flowing through a vessel is directly proportional to the pressure of the liquid, and the 4th power of the radius is inversely proportional to the viscosity of the liquid and the length of the vessel

A

Poiseuille’s law

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5
Q

The stored or resting energy

A

Potential energy

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6
Q

The property of a fluid that resists the force tending to cause fluid to flow

A

Viscosity

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7
Q

Axillary gives off ____ branches

A

8

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8
Q

Subclavian terminates at the:

A

Outer/Lateral boarder of 1st rib

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9
Q

Left subclavian originates from?

A

Aortic arch

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10
Q

Right subclavian originates at:

A

Innominate (Brachiocephalic)

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11
Q

Anterior tibial artery courses:

A

Anterolateral

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12
Q

Peroneal courses:

A

Posterolateral

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13
Q

Posterior tibial artery courses:

A

Anteromedial

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14
Q

Tibeoperoneal trunk bifurcates into:

A
  • Posterior tibial
  • peroneal artery
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15
Q

The popliteal bifurcates first into:

A
  • Anterior tibial
  • Tibeoperoneal trunk
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16
Q

Hunter’s canal AKA:

A

Adductor Canal

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17
Q

Superficial femoral artery terminates at the level of:

A

Hunter’s canal

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18
Q

______ tiny vessels that supply blood to vessels walls

A

Vasa Vasorum

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19
Q

Blood flow depends on 2 things:

A
  • Pressure gradient
  • resistance
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20
Q

_______ the driving force behind flow

A

Pressure gradient

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21
Q

________ is the difference between of pressure from high to low

A

Pressure gradient

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22
Q

_______ energy of something already in motion

A

Kinetic energy

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23
Q

________ created by pumping action of the heart

A

Pressure energy (potential)

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24
Q

________ weight of column of blood

A

Hydrostatic energy (gravitational)

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25
Hydrostatic energy in a supine person:
0 mmHg
26
Hydrostatic energy in a standing person:
100 mmHg
27
Increased resistance will decrease ________
Volume flow
28
Resistance is determined by:
- Vessel size, length, & diameter - thickness of blood - elasticity of walls - tortuous vessels
29
Biggest effects to resistance occur when there is a change of vessel _____ or ______
* Diameter * Radius
30
________ relationship of resistance, pressure gradient & flow
Poiseuille's law
31
Increase pressure gradient =
increase volume flow
32
Increase resistance =
decrease volume flow
33
Decreasing diameter would ?
* increase resistance * decrease flow
34
Smaller radius, high resistance, less volume, less diastole =
Vaso-constriction
35
Vaso-constricted vessels are:
* ECA * Fasting SMA * Infrarenal aorta * Peripheral arteries
36
Larger radius, less resistance, more volume, more diastole =
Vaso-dilated
37
Vaso-dilated vessels are:
* ICA * Post-prandial SMA * Suprarenal aorta * Organ arteries
38
Causes of vaso-constriction
* Cold * Stress * Smoking
39
Causes of vaso-dilation
* heat * Exercise * Stenosis/Distal ischemia
40
________ describes the relationship of pressure and velocity when radius changes
Bernoulli effect
41
Pressure and velocity are _______ related
inversely
42
Superficial femoral artery travels ________ to the _________
* Anteromedial * Deep femoral artery
43
Common femoral artery bifurcates into:
Superficial & deep femoral
44
External iliac artery terminates at:
Inguinal ligament
45
Internal iliac artery provides blood to:
* Pelvis * Pelvic muscles * Pelvic organs
46
The ulnar artery terminates at:
Superficial artery
47
Radial artery terminates at :
Deep palmar arch
48
Brachial artery terminates at the bifurcation of:
* Radius * Ulnar
49
The left subclavian originates from?
Aortic arch
50
The right subclavian originates from?
Innominate
51
The 3rd branch of the aortic arch is?
left subclavian artery
52
The 2nd branch of the aortic arch is?
Left CCA
53
the innominate artery bifurcates into:
* Right subclavian * Right CCA
54
The first branch of the aortic arch is?
Innominate
55
_______ means the stenosis has reached at least 50% diameter reduction & has altered flow patterns
Hemodynamically significant
56
Radius & velocity are _______ related
Directly
57
Two main factors of Reynold's number
* Radius * Velocity
58
Critical value of Reynolds number:
> 2000
59
_______ predicts when flow becomes disorganized or turbulent
Reynold's number
60
______ flow occurs when we have a sudden change in resistance & elevated velocities
Turbulent
61
When all layers move at the same velocity its called?
Plug flow
62
_____ flow is found at origin of vessels
Plug
63
Highest velocities found in the center of vessel & lowest next to wall is what type of flow?
Parabolic flow
64
Most common type of flow?
Parabolic
65
______ indicates laminar flow
Spectral window
66
Normal flow that moves in concentric streamline or layers is called?
Laminar
67
According to Poiseuille's law, what will happen to flow if the pressure difference increases?
Flow rate increases
68
What increases to compensate for a reduction in vessel area?
Velocity
69
What cardiac event coincides with normal arterial flow reversal?
Aortic valve closure