anatomy ch 11

T wave, P wave, QRS wave: 1. Wave seen on an electrocardiogram (ECG) representing ventricular depolarization. 2. Wave visible on the electrocardiogram (ECG) representing ventricular repolarization. 3. Wave on the electrocardiogram (ECG) that follows the firing of the sinoatrial (SA) node. 4. Wave visible on the electrocardiogram (ECG) representing atrial depolarization.

1. QRS wave. 2. T wave. 3. P wave. 4. P wave.

Which of the following occurs when the pressure in the ventricles rises higher than the pressure in the atria? a. Atrioventricular valves close. b. Semilunar valves open. c. Semilunar valves close. d. Atrioventricular (AV) valves open.

a. Atrioventricular valves close.

Which valve is closed during heart relaxation to prevent blood from backflowing from the aorta into the heart? a. aortic semilunar valve. b. bicuspid (mitral) valve. c. pulmonary semilunar valve. d. tricuspid valve.

a. aortic semilunar valve

The path of blood flow within the systemic vascular system is ________. a. arteries, arterioles, capillary beds, venules, veins. b. arterioles, arteries, capillary beds, veins, venules. c. arteries, arterioles, capillary beds, veins, venules. d. arterioles, arteries, venules, veins, capillary beds. e. arterioles, arteries, capillary beds, venules, veins.

a. arteries, arterioles, capillary beds, venules, veins

The atrioventricular valves are closed when ________. a. atrial pressure is less than ventricular pressure. b. atrial pressure is greater than ventricular pressure. c. atrial systole occurs. d. the ventricles fill with blood. e. the atria contract.

a. atrial pressure is less than ventricular pressure

Part complete What structure divides the left ventricle from the right ventricle? a. interventricular septum. b. tricuspid valve. c. chordae tendineae. d. interatrial septum. e. bicuspid valve.

a. interventricular septum

What chamber of the heart will blood enter after passing through the bicuspid valve? a. left ventricle. b. right atrium. c. left atrium. d. right ventricle

a. left ventricle

Which chamber pumps oxygenated blood out the aorta to the systemic circuit? a. left ventricle. b. right ventricle. c. left atrium. d. right atrium.

a. left ventricle

The tricuspid valve is located between the ________. a. right atrium and right ventricle. b. left ventricle and pulmonary artery. c. left ventricle and aorta. d. right ventricle and the pulmonary trunk. e. right atrium and left atrium.

a. right atrium and right ventricle

P & T wav and QRS complex: 1. The first wave on an ECG that follows the firing of the SA node. This wave is small and signals the depolarization of the atria immediately before they contract. 2. The large wave that results from the depolarization of the ventricles and precedes the contraction of the ventricles. 3. The third wave that results from currents flowing during the repolarization of the ventricles.

1. P wave. 2. QRS complex. 3. T wave.

An incompetent aortic semilunar valve would allow blood to backflow from the ________. a. aorta to the left atrium. b. aorta to the left ventricle. c. right ventricle to the right atrium. d. left ventricle to the left atrium. e. pulmonary trunk to the left ventricle.

b. aorta to the left ventricle

The pointed, inferior portion of the heart, known as the ________, rests on the diaphragm and is oriented toward the left hip. a. pericardium. b. apex. c. base. d. mediastinum

b. apex

What large blood vessels carry blood away from the heart? a. veins. b. arteries. c. venae cavae. d. capillaries.

b. arteries

Where does the sinoatrial node send an impulse after it initiates the electrical signal? a. Purkinje fibers. b. atrioventricular (AV) node. c. bundle branches. d. atrioventricular (AV) bundle.

b. atrioventricular (AV) node

Pulmonary arteries transport ________. a. blood rich in carbon dioxide to the right atrium of the heart. b. blood rich in carbon dioxide to the lungs. c. oxygenated blood directly to the aorta. d. oxygenated blood to the lungs. e. oxygenated blood to the heart.

b. blood rich in carbon dioxide to the lungs

Oxygented blood nourishing the myocardium comes from vessels that branch off the aorta called ________. a. venae cavae. b. coronary arteries. c. pulmonary veins. d. pulmonary arteries.

b. coronary arteriesc

The partition where the bundle branches are located is called the ________. a. left atrioventricular groove. b. interventricular septum. c. interatrial septum. d. right atrioventricular groove

b. interventricular septum

The walls of the ________ are substantially thicker because that chamber acts as the more powerful systemic pump of the heart. a. left atrium. b. left ventricle. c. right ventricle. d. right atrium.

b. left ventricle

The transportation of blood from the right side of the heart to the lungs and back to the left side of the heart is known as ________ circulation. a. coronary. b. pulmonary. c. cardiac. d. systemic.

b. pulmonary

The sinoatrial node is located in the ________. a. right ventricle. b. right atrium. c. interventricular septum. d. left atrium. e. aorta.

b. right atrium

The heart is actually (one, two, or three) pumps? a. one pump. b. two pumps. c. three pumps.

b. two pumps

What information can a clinician obtain from an electrocardiogram (ECG)? a. blood pressure (BP). b. presence of a heart murmur. c. cardiac output (CO). d. abnormality in electrical activity of heart.

d. abnormality in electrical activity of heart

The two superior receiving chambers of the heart are known as the ________, while the two inferior discharging chambers of the heart are known as the ________. a. veins; arteries. b. ventricles; atria. c. arteries; veins. d. atria; ventricles.

d. atria; ventricles

What part of the heart's intrinsic conduction system carries impulses into the interventricular septum? a. bundle branches b. atrioventricular (AV) node c. Purkinje fibers d. atrioventricular (AV) bundle

d. atrioventricular (AV) bundle

Which of the following supply the myocardium with oxygen-rich blood? a. blood within heart chambers b. superior vena cava (SVC) c. pulmonary vein d. coronary arteries

d. coronary arteries

Part complete Pulmonary circulation involves blood flow to and from the heart and the ________. a. digestive organs. b. brain body. c. skin. d. lungs.

d. lungs

Arteries are normally depicted as red while veins are colored blue due to the oxygenation of the blood being transported by each type of vessel. The exceptions to this rule are the ________ arteries and veins. a. systemic. b. coronary. c. hepatic. d. pulmonary.

d. pulmonary

Which vessels return oxygenated blood to the left atrium of the heart? a. superior vena cava. b. pulmonary arteries. c. aorta. d. pulmonary veins. e. inferior vena cava.

d. pulmonary veins

be able to label heart

use diagram/wkst to help

Which of the following is often called the pacemaker of the heart? a. atrioventricular (AV) node. b. atrioventricular (AV) bundle (bundle of His). c. Purkinje fibers. d. sinoatrial (SA) node.

d. sinoatrial (SA) node

Veins draining the head and arms empty into the ________, which carries blood to the right atrium of the heart. a. great saphenous vein. b. inferior vena cava. c. common iliac vein. d. superior vena cava.

d. superior vena cava

What term refers to the contraction of the heart? a. diastole. b. stroke volume (SV). c. cardiac cycle. d. systole

d. systole

Which term means heart contraction? a. diastole. b. tachycardia. c. fibrillation. d. systole.

d. systole

Which valve is located between the right atrium and right ventricle? a. aortic semilunar valve. b. pulmonary semilunar valve. c. bicuspid (mitral) valve. d. tricuspid valve.

d. tricuspid valve

Large veins have ________ to prevent the backflow of blood. a. valves. b. sphincters. c. tunics. d. shunts.

a. valves

veins, arteries, capillaries: 1. These vessels carry blood away from the heart. 2. These vessels return blood to the heart. 3. Superior and inferior vena cava are classified as these types of vessels. 4. The aorta is classified as one of these vessels. 5. These vessels have thicker walls and a heavier tunica media. 6. Microcirculation occurs in these vessels. 7. Due to low pressure in these vessels, skeletal muscle activity aids the return of blood by milking it along in these vessels toward the heart. 8. These vessels have thinner walls and transport oxygen-poor blood. 9. Some of these larger vessels have valves to prevent backflow. 10. Venules drain these tiny beds of vessels.

1. arteries 2. veins 3. veins 4. arteries 5. arteries 6. capillaries 7. veins 8. veins 9. veins 10. capillaries

left or right ventricle: 1. Heart chamber with the thickest wall. 2. Inferior discharging chamber on the left side of the heart. 3. Heart chamber that pumps blood to the pulmonary trunk. 5. The bicuspid (mitral) valve is situated between the left atrium and this chamber.

1. left ventricle. 2. left ventricle. 3. right ventricle. 5. left ventricle.

left or right atrium: 4. Heart chamber that contains the sinoatrial node. 6. The coronary sinus empties blood from cardiac circulation into this chamber. 7. The four pulmonary veins return oxygenated blood to this chamber. 8. The interatrial septum separates the right atrium from this chamber.

4. right atrium. 6. right atrium. 7. left atrium. 8. left atrium.

The normal resting heart rate is about ________ times per minute. a. 50 b. 35 c. 75 d. 105

c. 75

Which wave on the electrocardiogram (ECG) results from the firing of the sinoatrial (SA) node? a. QRS b. T c. P d. S-T

c. P

Blood leaves the left ventricle through an artery known as the ________. a. coronary sinus. b. pulmonary trunk. c. aorta. d. superior vena cava.

c. aorta

What is largest artery in the body? a. pulmonary trunk. b. brachiocephalic artery. c. aorta. d. common carotid artery.

c. aorta

Which valve guards the base of the aorta and opens when the ventricles are contracting? a. bicuspid valve. b. pulmonary semilunar valve. c. aortic semilunar valve. d. mitral valve. e. tricuspid valve.

c. aortic semilunar valve

The first heart sound, "lub," is caused by the closure of the ________ valves. a. aortic. b. pulmonary. c. atrioventricular (AV). d. semilunar

c. atrioventricular (AV)

What are the tiny white cords that anchor the cusps or flaps of endocardium to the walls of the ventricles? a. myocardium. b. ductus venosus. c. chordae tendineae. d. ligamentum arteriosum.

c. chordae tendineae

Which heart chamber receives blood from the pulmonary veins? a. right atrium. b. left ventricle. c. left atrium. d. right ventricle.

c. left atrium

What is the muscular layer of the heart wall? a. epicardium. b. fibrous pericardium. c. myocardium. d. endocardium.

c. myocardium

What is the function of the heart valves? a. regulates blood pressure in the chambers of the heart. b. allows blood to flow from one chamber to the next. c. prevents backflow of blood. d. synchronizes blood flow through chambers on each side of the heart.

c. prevents backflow of blood,

Which chamber receives blood from the superior and inferior vena cavae? a. left ventricle. b. right ventricle. c. right atrium. d. left atrium.

c. right atrium

Which heart chamber pumps unoxygenated blood out the pulmonary trunk? a. left atrium. b. left ventricle. c. right ventricle. d. right atrium.

c. right ventricle

You notice a missing P wave on a patient's electrocardiogram (ECG) and believe there is a problem with the ________. a. Purkinje fibers. b. left bundle branch. c. sinoatrial (SA) node. d. atrioventricular (AV) node. e. atrioventricular (AV) bundle.

c. sinoatrial (SA) node

Through which valve will blood flow when leaving the right atrium? a. aortic semilunar valve. b. bicuspid valve. c. tricuspid valve. d. pulmonary semilunar valve.

c. tricuspid valve

During atrial diastole, blood flows from the atria to the ________. a. lungs. b. aorta. c. ventricles. d. pulmonary trunk.

c. ventricles

The heart sounds "lub" and "dup" result from ________. a. contraction of the heart. b. firing of the nodes of the intrinsic conduction system. c. blood rushing through the chambers. d. opening of the heart valves. e. closure of heart valves.

e. closure of heart valves

Veins ________. a. transport oxygen-rich blood. b. carry blood away from the heart. c. operate under high pressure. d. branch into smaller vessels called arterioles. e. often have valves to prevent the backflow of blood.

e. often have valves to prevent the backflow of blood

Which one of the following blood vessels carries oxygenated blood? a. coronary sinus. b. superior vena cava. c. pulmonary artery. d. inferior vena cava. e. pulmonary vein.

e. pulmonary vein

Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart? a. sinoatrial (SA) node, atrioventricular (AV) bundle (bundle of His), atrioventricular (AV) node, right and left bundle branches, Purkinje fibers. b. atrioventricular (AV) node, atrioventricular (AV) bundle (bundle of His), sinoatrial (SA) node, Purkinje fibers, right and left bundle branches. c. atrioventricular (AV) node, sinoatrial (SA) node, atrioventricular (AV) bundle (bundle of His), right and left bundle branches, Purkinje fibers. d. sinoatrial (SA) node, atrioventricular (AV) bundle (bundle of His), atrioventricular (AV) node, Purkinje fibers, right and left bundle branches. e. sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle (bundle of His), right and left bundle branches, Purkinje fibers.

e. sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle (bundle of His), right and left bundle branches, Purkinje fibers