Circulatory System Flashcards Preview

Histology Finals > Circulatory System > Flashcards

Flashcards in Circulatory System Deck (35):
0

Lines the natural free surfaces of BV and the interior of the heart?

Endothelial

1

What heartwall layer i s mostly closely associated with pericardium?

Epicardium

2

Iies close to the endothelium, contain actin and myosin and has contractile ability?

Pericyte

3

What type of blood vessel has a thin wall compared to its lumen?

Vein

4

What is the membrane closely associated with tunica intima?

External elastic membrane?

5

What do capillaries lack that arteries and veins posses in their walls?

Smooth muscle

6

What structure is located in the right atrium?

SA node

7

What is the inner most layer of the blood vessel?

Tunica intima

8

The release of what substance during clot formation stimulates smooth muscle in arteries and contract?

Thromboxane A2

9

A sinusoid is a type of what structure?

Capillary

10

What is the name for the small blood vessels in the walls of blood vessels?

Vasa vasorum

11

What type of tissue comprises anull fibrost?

Connective tissue

12

What type of blood vessel has a thick wall compared to the lumen?

Artery

13

What membrane is associated with tunica intima?

Internal elastic membrane

14

Sinusoidal capillaries are son in the spleen, liver, in what specific part of what other organ?

Adenohypophysis

15

What layer of the heart contains endothelium?

Endocardium

16

What type of fiber is observed in abundance among the smooth muscle fibers of the tunica media of the aorta?

Elastic fibers

17

What layer of the wall of a large vein is the most prominent?

Tunica adventitia

18

What glycoprotein factor is part of the clotting mechanism?

Von wilberbrand factor

19

What type of blood vessel is found in endocrine glands and tissues where absorption is occuring

Fenestrated capillaries

20

Contains fenestrated capillaries

Glomerulus

21

What BV is heavily invested with elastic fibers?

Aorta

22

What type of capillary is simple an epithelial tube with no basal lamina?

Lymphatic

23

What layer of the heart wall contains the most cardiac muscle

Myocardium

24

What type of cell lines the external surface of the heart?

Mesothelial

25

In general in large vessels where are the vasa vasora located?

Tunica adventitia

26

What layer of the artery wall is thethickest?

Tunica media

27

What chemical is release from nerve fiber that cause arterial constriction?

Norepinephrine

28

What do veins have that arteries dont

Valve

29

What is the DCT that comprises the skeleton of the heart?

Annuli fibrosis

30

Prominent inner and outer elastic membrane are criteria for what type of vessel?

Mascular artery

31

What is the pace maker of the heart?

SA node

32

What BV control blood flow into capillary?

Arteriole

33

What major BV has a poorly developed tunica media and thick tunica adventitia rich in elastic fiber?

Vena cava

34

What type of artery is the aorta?

Elastic artery