Chapter 5

Question 1

angi/o

Answer 1

blood or lymph vessel

Question 2

aort/o

Answer 2

aorta

Question 3

arteri/o

Answer 3

artery

Question 4

ather/o

Answer 4

plaque, fatty substance

Question 5

brady-

Answer 5

slow

Question 6

cardi/o

Answer 6

heart

Question 7

-crasia

Answer 7

a mixture or blending

Question 8

-emia

Answer 8

blood, blood condition

Question 9

erythr/o

Answer 9

red

Question 10

hem/o, hemat/o

Answer 10

blood, relating to the blood

Question 11

leuk/o

Answer 11

white

Question 12

phleb/o

Answer 12

vein

Question 13

tachy-

Answer 13

fast, rapid

Question 14

thromb/o

Answer 14

clot

Question 15

ven/o

Answer 15

vein

Question 16

Double-walled membranous sac that encloses the heart

Answer 16

Pericardium (pericardial sac)

Question 17

Fibrous sac that surrounds and protects the heart

Answer 17

Parietal pericardium

Question 18

Acts as a lubricant to prevent friction as the heart beats

Answer 18

Pericardial fluid

Question 19

Inner layer of the pericardium
Forms the outer layer of the heart

Answer 19

Visceral pericardium

Question 20

External layer of the heart
Inner layer of the pericardium

Answer 20

Epicardium

Question 21

Middle and thickest of the heart’s
three layers

Answer 21

Myocardium (myocardial muscle)

Question 21

Consists of epithelial tissue
Inner lining of the heart
Has direct contact with blood
Supplied oxygen-rich blood by the
coronary arteries

Answer 21

Endocardium

Question 22

Two upper chambers of the heart
Divided by the interatrial septum
Receiving chambers; all blood enters the
heart through these chambers

Answer 22

Atria

Question 23

Two lower chambers of the heart
Divided by the interventricular septum
Walls are thicker than those of the atria

Answer 23

Ventricles

Question 24

Controls the opening between the right atrium and the right ventricle

Answer 24

Tricuspid valve

Question 24

Controls the opening between the right atrium and the right ventricle

Answer 24

Tricuspid valve

Question 25

Located between the right ventricle and the pulmonary artery

Answer 25

Pulmonary valve

Question 26

Located between the left atrium and left ventricle

Answer 26

Mitral valve

Question 27

Located between the left ventricle and the aorta

Answer 27

Aortic valve

Question 28

Flow of blood only between the heart and lungs

Answer 28

Pulmonary Circulation

Question 29

Systemic Circulation

Answer 29

Flow of blood to all body parts, except the lungs

Question 30

establishes basic rhythm rate

Answer 30

Sinoatrial (SA) node

Question 31

receives impulses from SA and transmits on to the bundle of His

Answer 31

Atrioventricular (AV) node

Question 32

ensures sequence of heart contractions; impulses travel onward to the right and left ventricles and the Purkinje fibers

Answer 32

Bundle of His (HISS)

Question 33

stimulation (contraction) of the atria

Answer 33

P wave

Question 34

shows the stimulation (contraction) of the ventricles; atria relax as the ventricles contract

Answer 34

QRS complex

Question 35

recovery (relaxation) of the ventricles

Answer 35

T wave

Question 36

Smallest vessels in the body Deliver oxygen and nutrients

Answer 36

Capillaries

Question 37

Return blood into the heart Two largest veins in the body

Answer 37

Venae Cavae

Question 38

Components of Blood

Answer 38

55% liquid plasma 45% formed elements (blood cells and platelets)

Question 39

Contains nutrients, hormones, and waste products 92% water; 8% proteins

Answer 39

Plasma

Question 40

Plasma fluid after the blood cells and clotting proteins have been removed

Answer 40

Serum

Question 41

Clotting proteins found in plasma

Answer 41

Fibrinogen and prothrombin