Anatomy - Circulatory System Flashcards Preview

Exam 1/2 Anatomy and Physiology > Anatomy - Circulatory System > Flashcards

Flashcards in Anatomy - Circulatory System Deck (65):
1

______ _________ are the only component of plasma that cannot pass through the capillary membrane to reach the cells.

Plasma proteins

2

What are the three formed elements of blood?

Erythrocytes
Leukocytes
Thrombocytes

3

The main component of erythrocytes is _____, which gives blood its color.

Hemoglobin

4

What is the most numerous formed element of blood?

Erythrocytes

5

_____ are clear white blood cells that do not contain hemoglobin.

Leukocytes

6

Which type of lymphocytes respond to the presence of foreign substances that produce antibodies.

B

7

Which type of lymphocytes destroy foreign substances directly?

T

8

Many middle-aged people now regularly take ______ to reduce the risk of coronary clots that lead to myocardial infarction.

Aspirin

9

______ helps maintain the water balance between blood and tissues and regulate blood volume.

Albumin

10

The ______ is the blunt rounded point of the heart.

Apex

11

The _____ is the larger flat portion at the opposite end of the apex of the heart.

Base

12

Diastole is the _____ phase of the heart.

Relaxation

13

Systole is the ____ phase of the heart.

Contraction

14

The ______ carry blood from the body to the right atrium.

Superior and inferior vena cavae

15

The ______ carries blood from the walls of the heart to the right atrium.

Coronary sinus

16

The _____ carries blood from the left ventricle to the body.

Aorta

17

The right and left coronary arteries exit the _____ and supply the heart muscle with oxygen nutrients.

Aorta

18

The _______ valves allow blood to flow from the atria to the ventricles.

Atrioventricular

19

Where is the tricuspid valve located?

Between the right atrium and the right ventricle

20

Where is the bicuspid valve located?

Between left atrium and left ventricle

21

The ____ valves meet in the center of the artery to block blood flow.

Semilunar

22

What are the steps of the pulmonary circuit?

Right atrium, tricuspid valve, right ventricle, pulmonary semilunar valve, pulmonary truck, right and left pulmonary arteries, lung capillaries, pulmonary veins, left atrium

23

The ____ atrium contracts to fill the ventricles.

Left

24

What are the three layers of the blood vessel?

Tunica intima
Tunica media
Tunica adventitia

25

An _____ is a thin, weakened area of the wall of an artery or vein that bulges outward, forming a balloon-like sac.

Aneurysm

26

Conducting arteries are ____ elastic arteries.

Large

27

Distributing arteries are ____ arteries.

Small to medium

28

The ______ _____ circulation detours venous blood from the organs of the gastrointestinal system and spleen through the liver before it returns to the heart.

Hepatic portal

29

Atrial fibrillation decreases blood flow by ___.

20%

30

Left side of the heart pumps to the ___.

Body

31

Right side of the heart pumps to the _____.

Lungs

32

The bicuspid is located on the ___ side of the heart.

Left

33

The tricuspid is located on the ____ side of the heart.

Right

34

____ are vessels that leave the heart.

Arteries

35

____ are vessels that come to the heart.

Veins

36

_____ valves leave the ventricles of the heart.

Semilunar

37

The pulmonic valve is found leaving the ____ ventricle.

Right

38

Systemic loop starts when it leaves the ____ side of the heart

Left

39

What is the outermost layer of the heart?

Epicardium

40

The innermost layer of the heart is the?

Endocardium

41

Left sided heart failure backs up into the _____.

Lungs

42

Right sided heart failure backs up Into the ___.

Body

43

Main sign of left sided heart failure is?

Fluid in lungs

44

_____ is the most common cause of left sided heart failure.

MI

45

____ is the most common cause of right sided heart failure.

Left sided heart failure

46

An _____ occurs at "dead ends" of hands and feet.

AV Shunt

47

_____ are the only vessels that ooze and leak.

Capillaries

48

What is the only vessel that is under neutral pressure?

Capillaries

49

Capillary sphincters open completely with the presence of increased ____.

Co2

50

What are the steps of blood flow from artery to vein?

Artery, arteriolar, capillaries, veinuole, vein

51

____% of blood is plasma.

55

52

_____% of blood is red blood cells.

44

53

____% of blood is white blood cells.

1

54

The _____ artery supplies blood to the posterior portion of the heart.

Circumflex

55

The coronary arteries are fed via the relaxation (diastolic) phase of the?

Left ventricle

56

The heart is located?

Mediastinum

57

____ of the heart lies left of the midline of sternum.

2/3

58

What are the two types of cells in the heart?

Electrical
Mechanical

59

What is the pathway of an electrical current in the nodes of the heart?

SA, AV, Bundle of his, Bundle branches, Purkinje Fibers

60

The ____ is the normal pacemaker of the heart.

SA

61

The _____ node of the heart acts as the "stopsign" for electrical current to allow mechanical cells in Atrium to contract.

AV

62

The intrinsic rate of the SA node of the heart is?

60-100

63

The intrinsic rate of the AV node of the heart is?

40-60

64

The intrinsic rate of the Purkinje fibers of the heart is?

20-40

65

_____ is the amount of force exerted against walls of arteries.

Blood pressure