Cardio - Circulatory System Anatomy Flashcards

1
Q

What are the major arteries of the body? (from the heart to the foot)

A

Common iliac
External iliac
Femoral
Popliteal
Posterior tibial
Plantar arch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the major veins of the body? (from the heart to the foot)

A

Common iliac
External iliac
Femoral
Great saphenous vein
Popliteal
Posterior tibial
Plantar venous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the largest vein in the body?

A

Great saphenous vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the 2 deep veins in the body? (from the heart to the foot)

A

Posterior tibial vein and popliteal vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the 3 walls of blood vessels?

A

tunica intima, media, and adventitia (externa)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

This is a simple squamous epithelium which lines the lumen of all vessels

A

Endothelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

This is a sparse pad of loose FCT which provides cushioning for the endothelium

A

Sub-endothelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

This is a condensed sheet of elastic tissue. It is well developed in arteries and less developed in veins.

A

Internal elastic lamina (IEL)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

This is the innermost layer of the blood vessel and faces towards the blood.

A

Tunica intima

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the 3 components that make up the tunica intima?

A

Endothelium, sub-endothelium, IEL internal elastic lamina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What muscle type is tunica media made up of?

A

Smooth muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

This is a layer of blood vessel that contains connective tissue fibres, mainly elastin and collagen. The thickness of this layer is directly proportional to vessel diameter and blood pressure.

A

Tunica media

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

This is a layer of blood vessel that is made up of loose FCT with a high content of collagen and variable amount of elastin.

A

Tunica adventitia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Lymphatics and autonomic nerves are found in this blood vessel layer.

A

Tunica adventitia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

In larger vessels, the adventitia may contain these structures which provides an important source of nutrients to arteries and veins.

A

Vasa vasorum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How is the contractile tone of the adventitia altered and controlled?

A

Under autonomic tone by autonomic nerves

17
Q

These are the resistance vessels of the circulation - they determine the blood pressure.

A

Arteriole

18
Q

These are low pressure, large volume transport systems with a unidirectional flow. They may also act as capacitance vessels to accomodate extra blood.

A

Veins

19
Q

This is the site of exchange between blood and tissues.

A

Capillaries

20
Q

These are the smallest veins found in the body. These connect the capillaries with veins.

A

Venules

21
Q

These are responsible for connecting the capillaries with the arteries.

A

Arterioles

22
Q

Why do veins have twice the cross-sectional area compared to arteries?

A

Because veins pump blood under low pressure, and so in order to keep the same volume of blood passing through the arteries and veins - the cross sectional area has to be larger.

23
Q

What is the tunica intima made of?

A

Elastin

24
Q

What is the dominant type of structure found in the tunica media?

A

Smooth muscle

25
Q

What lines the lumen of all vessels in the cardiovascular system?

A

Endothelium

26
Q

What is the thickest layer of a vein?

A

Tunica adventitia