Cardiovascular System Easily Forgotten Information Flashcards Preview

1. 2 Organ System Physiology > Cardiovascular System Easily Forgotten Information > Flashcards

Flashcards in Cardiovascular System Easily Forgotten Information Deck (15)
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1
Q

Three types of blood vessels.

A

Capillaries

Arteries

Veins

2
Q

Three types of capillaires.

A

Continuous
Fenestrated
Sinusoidal

3
Q

Three types of arteries

A

Elastic arteries
Muscular arteries
Arterioles

4
Q

Define the windkessel effect.

A

A rhythmic fluid ejection from the heart is transformed into a fairly uniform flow in the arteries with reduced pressure oscillations (reduced pulse strength)

5
Q

What are the three tunica of all blood vessels walls?

A

Tunica interna

Tunica media

Tunica externa

6
Q

What are the two extra tunica found in arteries?

A

External elastic lamina

Internal elastic lamina

7
Q

What is the tunica interna?

A

Endothelium

8
Q

What is the tunica media?

A

Layers of smooth muscle cells with sheet of elastic connective tissue

9
Q

What is the tunica externa (adventitia)?

A

Layer of connective tissue with many collagen and elastic fibres

10
Q

What is atherosclerosis?

A

Plaques of fat in vessel wall between intima and medial tunica

11
Q

What are the three types of veins?

A

Large veins

Medium-sized veins

Venules

12
Q

What are venules?

2

A

Very small veins

Collect blood from capillaries

13
Q

What are medium-sized veins?

2

A

Thin tunica media and few smooth muscle fibres

Tunica externa with longitudinal bundles of elastic fibres

14
Q

What are large veins?

3

A

Collect blood from capillaries
in tissues and organs

Return blood to heart

Store blood for emergencies

15
Q

What are venous valves?

2

A

Folds of tunica intima

Prevent blood from flowing backward