Deck 7: Circulation: the Heart and Blood Vessels

Question 1

Which vessel carries blood from the small intestines to the liver? ​

A)inferior vena cava
B)superior vena cava
C)iliac vein
D)hepatic vein
E)femoral artery

Answer 1

D

Question 2

In which vessels would blood pressure be measured the highest? ​

A)capillaries
B)arteries
C)veins
D)venules
E)arterioles

Answer 2

B

Question 3

The pulmonary veins ____. ​

A)receive blood from the lungs
B)drain blood from the liver
C)carry blood to tissue
D)carry oxygenated blood
E)are found only on the right side of the body

Answer 3

D

Question 4

The largest vessel in the body is the ____. ​

A)carotid artery
B)superior vena cava
C)femoral artery ​
D)ascending aorta
E)coronary artery

Question 5

The pulmonary valve ____. ​

A)controls blood flow through the pulmonary artery
B)lies between the left ventricle and the lungs
C)is anchored by chordae tendineae
D)closes when the ventricle contracts
E)is also known as the mitral valve

Question 6

The contraction phase of the cardiac cycle is known as ____. ​

A)systole
B)diastole
C)cardiac output
D)mean arterial pressure
E)pulse pressure

Question 7

Which valve closes when the left ventricle contracts? ​

A)mitral
B)right AV
C)tricuspid
D)pulmonary semilunar
E)aortic semilunar

Question 8

Which valve is also known as the mitral valve? ​

A)bicuspid ​
B)tricuspid
C)right AV
D)left AV
E)left semilunar

Question 9

The heart wall muscle layer is known as the ____. ​

A)epicardium
B)pericardium
C)endocardium
D)endothelium
E)myocardium

Question 10

In which vessels does blood flow need to slow down to ensure adequate diffusion of substances from blood to tissue? ​

A)capillaries
B)arteries
C)veins
D)venules
E)arterioles

Question 11

The jugular veins drain blood from the ____. ​

A)heart
B)lungs
C)liver
D)brain
E)arms

Question 12

During ventricular contraction which valve closes to prevent blood reentering the right atrium? ​

A)mitral
B)bicuspid
C)tricuspid
D)pulmonary semilunar
E)aortic semilunar

Question 13

Blood passing out of arterioles next enters the ____. ​

A)capillaries
B)arteries
C)veins
D)venules
E)lymphatic vessels

Question 14

The tough tendon-like structures that anchor the AV valves are the ____. ​

A)endocardium
B)septum ​
C)chordae tendineae
D)semilunar valves
E)Purkinje fibers

Question 15

The renal vein carries ____. ​

A)blood from the lungs
B)blood directly from the aorta ​
C)processed blood from the kidney
D)blood coming from the liver ​
E)blood into the small intestines

Question 16

Which vessels pick up excess extracellular fluid? ​

A)capillaries
B)arteries
C)veins
D)venules
E)lymphatic vessels

Question 17

The pelvic organs receive blood from the ____. ​

A)hepatic veins
B)iliac arteries
C)femoral arteries
D)pulmonary arteries
E)pulmonary veins

Question 18

Blood pressure is normally measured in the ____. ​

A)aorta
B)cartoid artery
C)superior vena cava ​
D)brachial artery
E)cephalic vein

Question 19

Which system uses the blood to eliminate excess body salts, water and wastes? ​

A)digestive
B)respiratory
C)cardiovascular
D)urinary
E)endocrine

Question 20

The mitral valve ____. ​

A)lies between the left and right ventricles
B)is found on the right side of the heart
C)prevents blood from back flowing into the aorta
D)lies between the left atrium and left ventricle
E)closes when the left ventricle relaxes

Question 21

When the left atrium is contracting ____. ​

A)the left ventricle is contracting
B)the right atrium is contracting
C)blood is moving away from the heart
D)blood is leaving the left ventricle
E)the bicuspid valve is closed

Question 22

Most vessels that feed abdominal organs are branches off the ____. ​

A)ascending aorta
B)abdominal aorta
C)thoracic aorta
D)superior vena cava
E)inferior vena cava

Question 23

The neural control centers for the heart ____. ​

A)are primarily stimulatory
B)are found in the spinal cord and brain
C)influence only heart rate
D)stimulate heart rate and decrease contraction strength
E)play a minor role in cardiovascular feedback

Question 24

The systemic circulation of blood flow begins when blood enters the ____. ​

A)right atrium
B)right ventricle
C)left atrium
D)left ventricle
E)lungs

Question 25

Blood leaving the left ventricle must pass by which structure before entering the aorta? ​

A)tricuspid valve
B)bicuspid valve
C)right semilunar valve
D)left semilunar valve
E)left AV valve

Question 26

In a resting person every minute, 20% of the blood enters the ____. ​

A)lungs
B)liver
C)brain
D)kidney
E)skeletal muscle

Question 27

Intrinsic pacemaker cells are located in the ____. ​

A)Purkinje fibers
B)Bundle branches
C)AV node
D)SA node
E)gap junctions

Question 28

Which circulation system carries blood from the small intestines to the liver? ​

A)coronary ​
B)systemic
C)hepatic portal
D)aortic
E)pulmonary ​

Question 29

The pulmonary veins deliver blood to the ____. ​

A)right atrium ​
B)right ventricle
C)left atrium
D)left ventricle
E)lungs

Question 30

The contraction of the right ventricle moves ____. ​

A)blood into the systemic circulation
B)deoxygenated blood into the lungs
C)oxygenated blood into the aorta
D)oxygenated blood into the lungs
E)blood into the left ventricle

Question 31

Blood leaving the legs and pelvis returns to the heart through the ____. ​

A)ascending aorta
B)abdominal aorta
C)coronary artery
D)superior vena cava
E)inferior vena cava ​

Question 32

What percentage of heart cells are part of the cardiac conduction system? ​

A)1 percent ​
B)10 percent
C)20 percent
D)25 percent
E)100 percent ​

Question 33

In which structure would you find oxygenated blood? ​

A)right atrium
B)right ventricle
C)pulmonary veins ​
D)pulmonary arteries
E)superior and inferior vena cava

Question 34

The functional link between cardiac muscle cells are called ____. ​

A)intrinsic pacemakers
B)nodes
C)intercalated discs
D)bundle branches
E)extrinsic pacemakers

Question 35

A physician is listening to a patient's heart and notices an abnormal "dup" sound on the left side. This indicates a potential problem with the ____. ​

A)mitral valve
B)bicuspid valve
C)tricuspid
D)pulmonary semilunar valve
E)aortic semilunar valve

Question 36

In which structure are the major cardiac pacemaker cells located? ​

A)Purkinje fibers
B)Bundle branches
C)AV node
D)SA node
E)gap junctions

Question 37

In a resting person what percentage of blood pumped by the right ventricle enters the lungs? ​

A)0 percent ​
B)10 percent
C)20 percent
D)50 percent
E)100 percent

Question 38

Which part of the cardiac conduction system fires off impulses at the fastest rate? ​

A)Purkinje fibers
B)Bundle branches
C)AV node
D)SA node
E)gap junctions

Question 39

As the electrical impulse moves through the cardiac conduction system it slows down at which structure to allow the atria to finish their contraction? ​

A)Purkinje fibers
B)Bundle branches ​
C)AV node
D)SA node
E)gap junctions

Question 40

The pulmonary circuit of blood flow pumps blood to the ____. ​

A)heart
B)brain
C)liver
D)lungs
E)all body cells ​

Question 41

Blood pressure is ____. ​

A)normal at 140/90 mm Hg
B)greater in the veins than arteries
C)is the fluid pressure exerted on a vessel wall
D)considered hypertensive at 110/70 mm Hg
E)generated by the contraction of the atria

Question 42

The aorta is classified as a(n)____. ​

A)artery
B)arteriole
C)capillary
D)venule
E)vein

Question 43

Movement of skeletal muscles helps propel blood through ____. ​

A)arteries
B)arterioles
C)capillaries
D)venules
E)veins

Question 44

Which of the following is NOT a risk factor for hypertension? ​

A)smoking
B)obesity
C)chronic stress
D)excessive salt intake
E)diet high in sources of potassium and calcium

Question 45

Which pressure is monitored by the baroreceptor reflex? ​

A)systolic
B)diastolic
C)pulse
D)mean arterial
E)cardiac

Question 46

The "pulse" we feel in our wrists and ankles is associated with blood flow through ____. ​

A)arteries
B)arterioles
C)capillaries
D)venules
E)veins

Question 47

In which type of vessel might you find a valve to assist blood flow? ​

A)artery
B)arteriole
C)capillary
D)venule
E)vein

Question 48

Diastolic pressure is a measure of the pressure when ____. ​

A)the left ventricle is relaxing
B)the right ventricle is contracting
C)blood is flowing rapidly through the aorta
D)the SA node is firing
E)there is peak flow through the systemic circulation

Question 49

When blood pressure rises rapidly the body responds by ____. ​

A)increasing heart rate ​
B)increasing muscle contractions around veins
C)decreasing the diameter of arterioles
D)vasodilation of arterioles
E)increasing the movement of fluid into capillaries

Question 50

In which vessel does the elastic recoil help propel blood when the heart is relaxed? ​

A)artery
B)arteriole ​
C)capillary
D)venule
E)vein

Question 51

Blood pressure receptors are located in the ____. ​

A)heart
B)carotid arteries
C)vena cava
D)pulmonary arteries
E)entire systemic system

Question 52

A severe and life-threatening drop in blood pressure is known as ____. ​

A)circulatory shock
B)hypotension
C)orthostatic hypotension
D)primary hypertension
E)secondary hypertension

Question 53

Exchange of materials between blood and tissues depends upon ____. ​

A)elastic recoil of capillary walls
B)capillary vasoconstriction
C)small number of active beds
D)thin capillary walls
E)fast capillary blood flow

Question 54

In which type of vessel can blood flow be regulated by the nervous system? ​

A)artery
B)arteriole
C)capillary
D)venule
E)vein

Question 55

Which type of vessel is one cell layer in thickness? ​

A)artery
B)arteriole ​
C)capillary
D)venule
E)vein

Question 56

Which type of vessel offers the most resistance to blood flow? ​

A)artery
B)arteriole
C)capillary
D)venule
E)vein

Question 57

In which type of vessel do the walls contain a high proportion of smooth muscle? ​

A)arteries
B)arterioles
C)capillaries
D)venules
E)veins

Question 58

At rest, the majority of blood is found in which type of vessel? ​

A)arteries
B)arterioles
C)capillaries
D)venules
E)veins

Question 59

Exchange of materials between blood and tissues depends upon ____. ​

A)high capillary blood pressure
B)high capillary resistance
C)lack of capillary pores
D)slow capillary blood flow
E)active transport processes

Question 60

Which type of vessel is found in "bed" interlaced within tissues? ​

A)artery ​
B)arteriole
C)capillary
D)venule
E)vein

Question 61

The heart condition caused by Lyme disease infection is ____. ​

A)endocarditis
B)tachycardia
C)myocarditis
D)"blue babies"
E)rheumatic fever

Question 62

A heart attack is also known as ____. ​

A)arteriosclerosis
B)atheroscelrosis
C)hypertension
D)a myocardial infarction
E)angioplasty

Question 63

A heart attack occurs when cardiac cells receive an inadequate supply of ____. ​

A)glucose
B)calcium
C)sodium
D)oxygen
E)potassium

Question 64

The return of water to the blood within a capillary bed is dependent upon ____. ​

A)vasodilation
B)cardiac output
C)elastic recoil
D)blood osmotic pressure
E)active transport

Question 65

The heart condition caused by a Streptococcus infection is ____. ​

A)endocarditis
B)tachycardia ​
C)myocarditis
D)"blue babies"
E)rheumatic fever

Question 66

What is the major determinant of blood flowing through a capillary bed? ​

A)arteriole flow
B)venule flow
C)heart rate
D)precapillary sphincter status
E)amount of salt in the blood

Question 67

Which of the following uses only chest compressions to aid victims of sudden cardiac arrest? ​

A)CPR
B)CCR ​
C)defibrillation
D)AED
E)CED

Question 68

LDLs should make up about what percentage of total blood lipids? ​

A)10 percent
B)20 percent
C)30 percent ​
D)40 percent
E)50 percent

Question 69

The most dangerous arrhythmia is ____. ​

A)bradycardia
B)heart failure
C)tachycardia
D)AFib
E)VFib

Question 70

Which of the following ECG tracings represents electricity flowing over the ventricles? ​

A)P wave
B)QRS wave
C)T wave
D)P-Q interval
E)S-T interval

Question 71

Which risk factor for cardiovascular disease cannot be controlled? ​

A)diet
B)life-style choice
C)genetic history
D)dietary choice
E)levels of blood lipids

Question 72

The process by which water can be added to or removed from the plasma is ____. ​

A)vasodilation
B)cardiac output
C)elastic recoil
D)bulk flow
E)active transport

Question 73

Molecules like salts and water move into tissue through ____. ​

A)capillary pores
B)protein pumps
C)protein channels
D)lymphatic vessels
E)venules ​

Question 74

Which type of molecule is considered "good cholesterol"? ​

A)HDLs ​
B)LDLs
C)Trans fatty acids
D)plaque
E)embolism

Question 75

Which of the following is NOT a treatment for a blocked coronary artery? ​

A)coronary bypass
B)laser angioplasty
C)balloon angioplasty
D)molecular angioplasty
E)stent

Question 76

A heart rate above 110 beats per minute is known as ____. ​

A)bradycardia
B)arrhythmia
C)tachycardia
D)AFib
E)VFib

Question 77

Which condition is a major concern for IV drug users? ​

A)endocarditis
B)tachycardia
C)myocarditis
D)"blue babies"
E)rheumatic fever

Question 78

When LDLs infiltrate a vessel wall which cells make the situation worse by activating the inflammatory response? ​

A)macrophages
B)myocytes
C)lymphocytes
D)red blood cells
E)basophils

Question 79

The hardening of the arteries is known as ____. ​

A)arteriosclerosis
B)atheroscelrosis
C)high cholesterol
D)a heart attack
E)angioplasty

Question 80

Excessive amounts of blood lipids is known as ____. ​

A)arteriosclerosis
B)atheroscelrosis
C)hypertension
D)a heart attack
E)angioplasty