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Vasculature > Week 2 - Lesson 1 (Part 1) > Flashcards

Week 2 - Lesson 1 (Part 1) Flashcards

1
Q

What are 4 differences between arteries and veins?

A
  1. Veins are more lateral
  2. Veins have a thinner tunica media
  3. Veins collapse
  4. Veins are larger
    - odd shape
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2
Q

What do arteries branch and become?

A

Arterioles

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3
Q

What do arterioles branch and become?

A

Capillaries

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4
Q

What do capillaries fuse together to become?

A

Venules

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5
Q

What do venules fuse together to become?

A

Veins

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6
Q

When is a blood vessel at the point of an arteriole?

A

When it branches so much it can no longer be seen with the naked eye
- microscopic

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7
Q

What are the microscopic vessels? (3)

A
  1. Arterioles
  2. Capillaries
  3. Venules
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8
Q

What are the 3 layers of the artery/vein walls?

A
  1. Tunica intima
  2. Tunica media
  3. Tunica externa
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9
Q

What is another name for tunica externa?

A

Tunica adventitia

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10
Q

What vessel has a thicker tunica media?

A

Arteries

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11
Q

Why do arteries have a thicker tunica media? (3)

A
  1. Able to push more blood
  2. Great elasticity
  3. Non collapsible
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12
Q

What is the echogenicity of the 3 vessel layers?

A
  1. Intima = hyperechoic
  2. Media = hypoechoic
  3. Adventitia = hyperechoic
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13
Q

What kind of muscle is in arteries?

A

Smooth

- there are increasing amounts in the tunica media

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14
Q

What are 2 characteristics of arteries?

A
  1. Strong

2. Elasticity

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15
Q

What do arteries deal with?

A

Surges of oxygenated blood from the heart

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16
Q

What do arteries not have?

A

Valves

17
Q

What kind of pressure system are the arteries?

A

High pressure system

18
Q

Where does plaque build up in the arteries?

A

In the inner layers

- this is why we measure the inner walls of the hyper echoic lines to the outer of the hypo echoic lines

19
Q

What does the elasticity of arteries allow?

A

Allows the arteries to expand and contract

20
Q

What kind of pressure system are in veins?

A

Low pressure

21
Q

What 3 vessels return deoxygenated blood back to the heart?

A
  1. IVC
    - lower body
  2. SVC
    - upper body
  3. Tributaries
22
Q

What does the venous circulation contain?

A

Valves

23
Q

Where are there more valves?

A

In the venous system that is more distally

24
Q

Which vessels have larger lumens?

A

Veins

25
Q

Which vessel has the largest diameter?

A

Veins

26
Q

Which vessels are easier to stick with a needle and extract blood?

A

Veins

27
Q

What does it mean if you have a thinner vessel?

A

Less innervation

- less painful to stick with a needle

28
Q

What happens with the blood in a vein if you stick a needle with it?

A

Blood will not typically seep out much through your injection site

29
Q

Which vessel stores blood?

A

Veins

- and is readily available

Vasculature (45 decks)

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