Heart Quiz

If you were explaining the functions and location of the vagus nerve (X) to a friend, all of the following would be part of your explanation except

The vagus nerve transmits signals that control hearing and equilibrium

What is the function of the coronary arteries?

They provide blood supplied to the hearts tissue.

"Red blood" designates ___ blood, which is only seen in the chambers on the ___ side of the heart

oxygenated, left

Which of the following statements accurately describes the vagus nerve (X)?

they innervate the lungs, heart, liver, stomach, aorta, and intestines.

Which of the following accurately lists the structures through which electrical impulses pass, from initiation to circulation?

Sinoatrial node, atrioventricular node, bundle of His, bundle branches, Purkinje fibers

_____ is the amount of blood a ventricle pumps out during one contraction.

Stroke volume

All of the following are structures of the conduction system except

The atrioventricular valves

All of the following are structures that The conduction system except

The atrioventricular valves

Oxygenated blood carries through all the following regions accept

The coronary sinus

Oxygenated blood is carried through all of the following regions except

The coronary sinus

If you were explaining how the various types of bones provide protection toother body structures,your explanation might include all of the following except

The cranial bones are sesamoid that protect the brain.

If you were giving an oral presentation on the conduction system, you would most likely include all of the following steps in your discussion except

The electrical impulse initiates at the Purkinje fibers.

Coronary ______ branch from the ascending aorta to supply the ventricles and atria , and coronary _____ drain blood into the right atrium .

Arteries, veins

Deoxygenated blood is pumped from the hearts right ventricle and enters the lungs via pulmonary ___, and oxygenated blood drains through the pulmonary ___ to the left atrium.

Arteries, veins

The oxygenated blood is pumped from the heart's right ventricle and enters the lung via pulmonary ____, and oxygenated blood drains through the pulmonary ____ to the left atrium.

Arteries, veins

_____ branch from the ascending aorta to supply the ventricles and atria, and ____ drain blood into the right atrium.

Coronary arteries, coronary veins

If a friend asked you to describe the spatial relationship among the heart, lungs, and diaphragm, which of the following would you most likely say?

The heart is located between the lungs and superior to diaphragm.

What of the following accurately compares the heart of an adult male and the heart of an adult female?

The heart of an adult male is slightly larger than that of an adult female.

Which of the following accurately compares the heart of an adult male and the heart of an adult female?

The heart of an adult male is slightly larger than that of an adult female.

The conduction system of the heart regulates the electrical impulses that

Make the heart beat .

The inferior vena cava returns deoxygenated blood to the ____, whereas the aorta receives oxygenated blood from the _____.

Right atrium, left ventricle

The ___ receives oxygen-depleted blood and empties it into the ___, whereas oxygenated blood from the lungs enters the ___ and empties into the ___.

Right atrium, right ventricle, left atrium, left ventricle

Which of the following accurately lists the structures through which electrical impulses pass, from initiation to culmination?

Sinoatrial node, atrioventricular node, bundle of His, bundle branches, Purkinje fibers

Which of the following structures separate the right and left ventricles?

The interventricular septum

Which of the following structures separates the right and left ventricles?

The interventricular septum

All of the following are differences between the left and right atrium except

The left atrium is larger than the right atrium.

If your instructor asked you to explain why the myocardium is thicker in the left ventricle than it is in the right ventricle, which of the following would you most likely say?

The left ventricle has to pump harder to overcome the high resistance required to pump blood into the long systemic circuit, whereas the right ventricle does not need to generate as much pressure since the pulmonary circuitis shorter and provides less resistance.

All of the following structures deliver deoxygenated blood to the right atrium except

The pulmonary veins.

Why do you think the heart is called a "double pump"?

The right and left sides of the heart work in coordination to pump oxygenated blood to the body and deoxygenated blood to the lungs.

Which of the following statements accurately compares the right and left atrioventricular valves?

The right atrioventricular valve has 3 cusps, whereas the left atrioventricular valve has 2 cusps.

If you were explaining the functions and locations of the vagus nerve (X) To a friend, all of the following would be a part of your explanation except

The vagus nerves transmit signals that control hearing and equilibrium

The endocardium lines the interior walls of all the following except

The visceral pericardium

Which of the following statements accurately describes a difference between the right and left ventricles?

The walls of the left ventricle are about three times thicker than those of the right ventricle.

All of the following statements accurately describe vagus nerve (X) functions except

Their motor fibers innervate the mastication muscles to control biting and chewing.

What is the purpose of the heart valves?

To control the flow of blood through the heart and prevent blood backflow

What is the function of the Purkinje fibers?

To induce a ventricular contraction that ejects blood from the heart

what is the purpose of the heart valves?

to control the flow of blood through the heart and prevent backflow

Which of the following statements accurately compares the right and left atria?

the right atrium is larger than the left atrium

The conduction system of the heart is controlled by the _____ nervous system.

Autonomic

The right atrium receives ___ blood from the vena cava and the coronary sinus, and the left atrium receives ___ blood from the pulmonary veins.

Deoxygenated, oxygenated

"Blue blood" designates _____ blood, which is only seen in the chambers of the ___ side of the heart.

Deoxygenated, right

coronary veins carry ___ blood to the ___

Deoxygenated, right atrium (myocardium)

Which of the following accurately describes one of the steps of each electrical impulse?

During step 4, the signal branches into the bundle branches of each ventricle.

Which of the following accurately describes one of the steps of each electrical impulseach electrical impulse?

During step 4, the signal branches into the bundle branches of each ventricle.

Which of the following best describes the rule of the pericardium?

Enclosing and protecting the heart

Which layer of the heart wall adheres the heart to the pericardium, a sac of tissue that protects the heart from friction as it beats?

Epicardium

The three layers of the heart wall are called

Epicardium, myocardium, and endocardium

Which of the following is the correct order of the heart wall layers, from outermost to innermost?

Epicardium, myocardium, endocardium

Which of the following explains how you can find that cardiac output volume?

Multiply the number of heart beats in one minute by the stroke volume

Where can cardiac muscle be found?

Only in the myocardium of the heart

The heart is _____ to the trachea.

anterior

what are the names of the two chambers found on each side of the heart?

atrium and ventricle

An adult heart is approximately the size of a

fist

The heart of a healthy adult beats about ___ it's about times per minute to keep blood constantly moving.

60-70

Each electrical impulse causes those atria to _____, moving blood ______.

Contract, into the ventricles

___ branch from the ascending aorta to supply the ventricles and atria, and ___ drain blood into the right atrium.

Coronary arteries, coronary veins

What is the function of the heart in relationship to the circulatory system?

It controls the circulation of the blood throughout the body.

Which of the following statements accurately describes how oxygenated blood leaves the heart?

It flows from the right atrium into the left ventricle, which pumps it through the aortic valve into the ascending aorta.

Which of the following statements accurately explains how deoxygenated blood leaves the heart?

It flows from the right atrium into the right ventricle, which pumps it through the pulmonary valve into the pulmonary trunk.

What is the location of the heart in reference to the diaphragm?

It is superior to the diaphragm.

What is the function of the myocardium?

It provides the heart strong and continuous pumping action.

What is the function of the thoracic cage in regard to the heart?

It surrounds and protects the heart.

The heart is located ___ to the two lungs, and the ___ lung experiences the greatest displacement due to the heart's location.

Medial, left

which of the following occurs during systemic circulation?

Oxygenated blood is delivered from the left ventricle to the body tissue

The right and left ventricles contain ____ muscles, which contract to pull on yes chordae tendineae. Tye purpose of the chordae tendineae is to ____.

Papillary, prevent inversion of the hear valves

The right and left ventricles contain ______ muscles, which contract to pull on the chordae tendineae. The purpose of the chordae tendineae is to ______.

Papillary, prevent inversion of the heart valves

The thin sack that surrounds the heart is called the ___, and its function is ___.

Pericardium, enclosing and protecting the heart

Which of the following statements accurately describes pulmonary circulation?

Pulmonary circulation delivers the deoxygenated blood from the heart to the lungs and oxygenated blood from the lungs to the heart.

____ veins carry oxygen-rich blood, whereas ____ arteries carry oxygen-poor blood.

pulmonary, pulmonary

All of the following are heart valves except

the coronary valve