SIreviewquestions

Question 1

great cardiac vein drains blood from the heart muscle to

Answer 1

right atrium

Question 2

autonomic cneters for cardiac function are located in the …

Answer 2

cardiac centers of the medulla oblongata

Question 3

serous membrane covering the inner surface of the heart is the

Answer 3

endocardium

Question 4

simple squamous epithelium covering the valves of teh heart constitutes the

Answer 4

endocardium

Question 5

during diastole a chamber of the heart will

Answer 5

relax and fill with blood

Question 6

during the cardiac cycle, amount of blood ejected from the left ventricle when the semilunar valve opens is the

Answer 6

stroke volume

Question 7

true or false: the refractory period of a cardiac muscle is longer than skeletal muscle

Answer 7

true

Question 8

cardiac output cannot increase indef bc

Answer 8

the available filling time becomes shorter as the heart rate increases

Question 9

thickest layer of the heart wall is the

Answer 9

myocardium

Question 10

freshly oxygenated blood is first received by

Answer 10

left atrium

Question 11

atrial depoliarization coincides with what wave

Answer 11

P wave

Question 12

what depolarizes next after the AV node>

Answer 12

bundle branches

Question 13

SA node, AV node, AV bundle, R&L bundle branches, purkinje fibers

Answer 13

electrical impulse pathway thru conducting system of heart

Question 14

3 factors regulating stroke volume to ensure that the left and right ventricles pump equal vlumes of blood

Answer 14

1) preload, the stretch on the heart before it contracts
2) contractility, the forcefulness of contraction of individual ventricular muscle fibers
3) afterload, the pressure that must be exceeded before blood can be ejected from the ventricles

Question 15

plasma accounts for 55% of the volume of hole blood and water accounts for __% of plasma volume

Answer 15

92

Question 16

vascular spasm
platelet phase
coagulation
retraction
fibrinolysis

Answer 16

sequence of hemostasis

Question 17

stem cells responsible for lymphopoiesis located in

Answer 17

thymus, spleen, lymph nodes, red bone marrow,

Question 18

calcium and vitamin k affect almost every aspect of the ___ process

Answer 18

clotting

Question 19

waste product bilirubin is formed from __

Answer 19

heme

Question 20

rely on anaerobic respiration, large part of their volume is hemoglobin, and shape increases membrance surface area

Answer 20

erythrocytes

Question 21

serious bacterial infection leads to more of these cells in the blood

Answer 21

neutrophilis

Question 22

reduce blood flow to the kidneys lead to increased__

Answer 22

erythropoiesis

Question 23

blood cells that attack a specific antigen is a

Answer 23

lymphocyte

Question 24

leukocyte that releases histamine and other inflammatory chemicals is the

Answer 24

basophil

Question 25

leukocytes share diapedesis, disease fights, and more active in connective tissues than in blood but not

Answer 25

distorted lobed nuclei

Question 26

difference between thrombus and an embolus

Answer 26

thrombus must travel to become an embolus

Question 27

plasma component that forms fibrous skeleton of a clot consists of

Answer 27

firbinogen

Question 28

blood vessels that play most important role in regulating blood pressure and blood flow to a tissue are the

Answer 28

arterioles

Question 29

baroreceptors that function in the reg of bp are located in the

Answer 29

carotid sinus

Question 30

2 way exchange of substances btwn blood and body cells occurs only thru ___

Answer 30

capillaries

Question 31

large molecules such as peptides and proteins move into and out of the bloodstream by way of __ __

Answer 31

fenestrated capillaries

Question 32

local control of blood flow due to the action of precapillary sphincters is

Answer 32

autoregulation

Question 33

blood is transported thru the venous system by means of …

Answer 33

muscular contractions and the respiratory pump

Question 34

net hydrostatic pressure forces water OUT OF a capillary; net osmotic pressure forces water ___ capillary

Answer 34

into

Question 35

2 arteries formed by the division of the brachiocephalic trunk are

Answer 35

common carotid and subclavian

Question 36

unpaired arteries supplying blood to the visceral organs include

Answer 36

the celiac and superior and inferior mesenteric arteries

Question 37

paired arteries supplying blood to the body walla ndother structures outside the abdominopelvic cavity include the

Answer 37

iliac , femoral, and lumbar arteries

Question 38

the vein that collects most of the venous blood from below the diaphragm is the

Answer 38

inferior vena cava

Question 39

tunica intima includes

Answer 39

simple squamous epithelium, loose connective tissue, smooth muscle

Question 40

inferior vena cava can function as a blood __

Answer 40

reservoir

Question 41

increase in capillary hydrostatic ressure results in incrased ___ from capillaries to the interstitial space

Answer 41

filtration

Question 42

which layer of artery wall thickens most in atherosclerosis

Answer 42

tunica intima

Question 43

which vessels is bilaterally symmetrical of the pair occurs on each side of the body

Answer 43

internal carotid artery

Question 44

drainage of superficial venous blood from the leg we find that blood enters the great saphenous vein, femoral vein, inferior vena cava, and right atrium but whats missing is

Answer 44

external and common iliacs