Heart Structure And Function Test! Trivia Quiz
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CHAMBERS: In the Left Ventricle........ from the Left atrium, the blood enters through the ____________ valve to the LV.
About This Quiz
The wall of the heart is made of three layers. These include the epicardium, the myocardium, and the endocardium. The pericardium holds it in place, and the right atrium, left atrium, right ventricle, and left ventricle makes up the heart's chambers. There are also blood vessels and valves. The primary function of the heart is to pump blood to the See morebody. You should clearly take this important quiz.
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- 2.
CHAMBERS: The LV forms a point at the lower aspect of the heart named the___________
Explanation
The LV (left ventricle) forms a point at the lower aspect of the heart called the apex. The apex is the bottom tip of the heart and is formed by the pointed shape of the left ventricle. This is where the heartbeat can be felt most strongly and where the heartbeat sounds are loudest when listening to the chest with a stethoscope. The apex is an important landmark in cardiac anatomy and is commonly used in medical examinations and procedures involving the heart.Rate this question:
- 3.
What layer of the heart lines the inner surface of the heart chambers and valves?
Explanation
The endocardium is the layer of the heart that lines the inner surface of the heart chambers and valves. It is composed of endothelial cells and connective tissue. The endocardium helps to prevent blood clotting and provides a smooth surface for blood to flow through the heart. It also plays a role in the contraction and relaxation of the heart muscle.Rate this question:
- 4.
The Myocardium is the thickest layer of the heart and is the muscular wall of the heart.
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True
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False
Correct Answer
A. TrueExplanation
The myocardium is indeed the thickest layer of the heart and it consists of cardiac muscle tissue. This layer is responsible for the contraction and relaxation of the heart, allowing it to pump blood throughout the body. The myocardium is essential for maintaining the heart's function and plays a crucial role in the overall cardiovascular system.Rate this question:
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- 5.
What SEPTUM partitions between the RA and LA?
Correct Answer
Interatrial Septum
InteratrialExplanation
The interatrial septum is the structure that partitions between the right atrium (RA) and left atrium (LA) in the heart. It separates the two atria and prevents the mixing of oxygenated and deoxygenated blood.Rate this question:
- 6.
The Myocardium of the heart requires a constant supply of blood containing ________ and _________
Correct Answer
Nutrients, O2
Nutrients, Oxygen
O2, Nutrients
Oxygen, NutrientsExplanation
The myocardium of the heart requires a constant supply of blood containing nutrients and oxygen. Nutrients are essential for providing energy and building blocks for the cells of the myocardium to function properly. Oxygen is necessary for cellular respiration, which produces energy for the myocardium. Therefore, both nutrients and oxygen are required to meet the metabolic demands of the myocardium and ensure its proper functioning.Rate this question:
- 7.
The Chordae Tendineae stabilizes the valves so that they don't evert back into the atria allowing back flow of blood when the ventricles contract.
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True
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False
Correct Answer
A. TrueExplanation
The Chordae Tendineae are fibrous cords that attach the valves of the heart to the papillary muscles in the ventricles. Their main function is to prevent the valves from inverting or "everting" into the atria when the ventricles contract. This helps maintain the proper direction of blood flow, preventing any backflow of blood into the atria. Therefore, the statement is true.Rate this question:
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- 8.
The Systemic Circuit or System pumps ___________ blood to the tissues of the body from the LV via the Aorta and _______ Blood back to the heart from the tissues via the IVC and SVC to the RA.
Correct Answer
Oxygenated, Deoxygenated
Oxygenated DeoxygenatedExplanation
The systemic circuit is responsible for pumping oxygenated blood to the tissues of the body from the left ventricle via the aorta. It also pumps deoxygenated blood back to the heart from the tissues via the inferior vena cava and superior vena cava to the right atrium.Rate this question:
- 9.
CHAMBERS: In the Right Ventricle ...........from the RIGHT ATRIUM the blood enters through the __________ valve to the right ventricle
Correct Answer
TricuspidExplanation
The correct answer is tricuspid. In the right ventricle, blood flows from the right atrium through the tricuspid valve to enter the right ventricle. The tricuspid valve is located between the right atrium and the right ventricle and consists of three cusps or flaps. It prevents the backflow of blood from the right ventricle to the right atrium during ventricular contraction, ensuring that blood flows in the correct direction through the heart.Rate this question:
- 10.
In the Right Atrium the SVC returns blood to the
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Heart from the head, chest, and upper extremities
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Trunk and lower extremities
Correct Answer
A. Heart from the head, chest, and upper extremitiesExplanation
The superior vena cava (SVC) is a large vein that carries deoxygenated blood from the head, chest, and upper extremities back to the heart. It enters the right atrium of the heart, where the blood is then pumped into the right ventricle and eventually sent to the lungs for oxygenation. The SVC does not return blood from the trunk and lower extremities, as that is the role of the inferior vena cava (IVC).Rate this question:
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- 11.
The Tricuspid Valve prevents backflow of blood back into the RA when the RV is contracting.
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True
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False
Correct Answer
A. TrueExplanation
The tricuspid valve is located between the right atrium (RA) and the right ventricle (RV) of the heart. Its main function is to prevent the backflow of blood from the RV back into the RA when the RV contracts. This is important because it ensures that blood flows in the correct direction, from the RA to the RV and then to the lungs for oxygenation. Therefore, the statement is true.Rate this question:
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- 12.
The Right and Left Coronary Arteries are the first branches off the aorta and are located just above the aortic valve. They branch to ALL regions of the heart.
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True
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False
Correct Answer
A. TrueExplanation
The right and left coronary arteries are indeed the first branches off the aorta and are located just above the aortic valve. These arteries are responsible for supplying blood to all regions of the heart. Therefore, the statement is true.Rate this question:
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- 13.
The Circulatory System carries ________ and _______ to the cells and _________ products of cell metabolism away.
Correct Answer
Oxygen, Nutrients, Waste
Oxygen Nutrients Waste
Nutrients, Oxygen, Waste
Nutrients Oxygen wasteExplanation
The circulatory system carries oxygen and nutrients to the cells and waste products of cell metabolism away. Oxygen is necessary for cellular respiration, while nutrients provide energy and building blocks for cellular processes. Waste products, such as carbon dioxide and metabolic byproducts, need to be removed from cells to maintain cellular health.Rate this question:
- 14.
Between the Inner and Outer layer of the Pericardium is a normal amount of fluid called ___________
Correct Answer
Pericardial FluidExplanation
The pericardium is a double-layered sac that surrounds the heart. Between the inner and outer layers of the pericardium, there is a normal amount of fluid called pericardial fluid. This fluid acts as a lubricant, allowing the heart to move and beat smoothly within the pericardium. It also helps to reduce friction between the pericardial layers during heart contractions, ensuring proper heart function.Rate this question:
- 15.
The Atria receives blood from the _______ entering the _______.
Correct Answer
Veins, Heart
Veins HeartExplanation
The correct answer is "Veins, Heart". The atria are the upper chambers of the heart that receive blood from the veins. The veins carry deoxygenated blood back to the heart, where it enters the atria. Therefore, the blood is received from the veins entering the heart.Rate this question:
- 16.
The pulmonary circuit pumps __________ blood to the lungs from the RV via the Pulmonary Artery and _____________ blood back to the heart from the lungs via the Pulmonary Veins to the LA.
Correct Answer
Deoxygenated, Oxygenated
Deoxygenated OxygenatedExplanation
The pulmonary circuit is responsible for pumping deoxygenated blood from the right ventricle to the lungs via the pulmonary artery. In the lungs, the blood gets oxygenated and is then returned to the heart through the pulmonary veins, specifically to the left atrium. Therefore, the correct answer is "Deoxygenated, Oxygenated." The repetition of "Deoxygenated Oxygenated" in the answer is likely a typo or error.Rate this question:
- 17.
The Mitral Valve prevents backflow of blood into the _______ when the ______ is contracting.
Correct Answer
LA, LV
Left Atrium, Left Ventricle
LA LV
Left Atrium left VentricleExplanation
The mitral valve prevents backflow of blood into the left atrium when the left ventricle is contracting.Rate this question:
- 18.
The "left Heart" consists of the left ________ and _________.
Correct Answer
Atrium, Ventricle
Atrium Ventricle
Atrium, Left Ventricle
Ventricle, Atrium
Ventricle, Left AtriumExplanation
The left heart consists of the left atrium and left ventricle.Rate this question:
- 19.
The Mitral Valve is located between the ______ and ______
Correct Answer
LA, LV
Left Atrium, Left Ventricle
LA LV
Left Atrium left VentricleExplanation
The Mitral Valve is located between the Left Atrium (LA) and the Left Ventricle (LV).Rate this question:
- 20.
The Pericardium is the__________ layer of the heart.
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Innermost
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Outermost
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Muscle
Correct Answer
A. OutermostExplanation
It consists of 2 serous layers of fibrous tissue with a small space in betweenRate this question:
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- 21.
The "right heart" consists of the right ________ and ________ .
Correct Answer
Atrium, Ventricle
Atrium, Right Ventricle
Atrium Right Ventricle
Ventricle, Atrium
Ventricle, Right AtriumExplanation
The "right heart" consists of the right atrium and right ventricle.Rate this question:
- 22.
The Tricuspid Valve is located between the ____ and _____.
Correct Answer
RA, RV
RA RV
Right Atrium Right Ventricle
Right Atrium, Right VentricleExplanation
The Tricuspid Valve is located between the Right Atrium (RA) and Right Ventricle (RV). It is also referred to as the valve between the Right Atrium and Right Ventricle.Rate this question:
- 23.
What are the 3 layers of the heart? **** from the innermost to the outermost****
Correct Answer
Endocardium, Myocardium, Pericardium
Endocardium Myocardium PericardiumExplanation
The correct answer is Endocardium, Myocardium, Pericardium. The endocardium is the innermost layer of the heart, consisting of a thin layer of endothelial cells. The myocardium is the middle layer, made up of cardiac muscle tissue responsible for the contraction of the heart. The pericardium is the outermost layer, a fibrous sac that surrounds and protects the heart.Rate this question:
- 24.
What layer if the heart is responsible for pumping blood throughout the vessels?
Correct Answer
MyocardiumExplanation
The myocardium is the middle layer of the heart and is responsible for pumping blood throughout the vessels. It is composed of cardiac muscle tissue that contracts and relaxes to create the pumping action of the heart. The myocardium is thick and strong, allowing it to generate enough force to propel blood out of the heart and into the circulatory system. It is essential for maintaining blood circulation and delivering oxygen and nutrients to the body's tissues.Rate this question:
- 25.
In the Right Atrium the IVC returns blood from the
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Heart, to the Head, Chest, and Upper Extremities
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Trunk and Lower Extremities
Correct Answer
A. Trunk and Lower ExtremitiesExplanation
The correct answer is "Trunk and Lower Extremities". The inferior vena cava (IVC) is a large vein that returns deoxygenated blood from the lower body to the right atrium of the heart. It collects blood from the trunk, which includes the abdomen and pelvis, as well as the lower extremities, which refer to the legs and feet. Therefore, the IVC returns blood from the trunk and lower extremities back to the right atrium of the heart.Rate this question:
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- 26.
CHAMBERS: The Left Atrium receives __________ rich blood from the lungs via the ______________ veins.
Correct Answer
Oxygen, Pulmonary
Oxygen PulmonaryExplanation
The left atrium receives oxygen-rich blood from the lungs via the pulmonary veins.Rate this question:
- 27.
What TYPE of valves are located between the ventricles and the large arteries that carry blood away from the heart?
Correct Answer
Semilunar Valves
SemilunarExplanation
The correct answer is Semilunar Valves. These valves are located between the ventricles and the large arteries that carry blood away from the heart. They are called semilunar valves because of their half-moon shape. These valves prevent the backflow of blood into the ventricles when the heart relaxes and ensure that blood flows in one direction, from the ventricles to the arteries.Rate this question:
- 28.
Intercalated Disks are modified cell membranes that allow for the rapid transfer of electrical impulses between the cells.
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True
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False
Correct Answer
A. TrueExplanation
Intercalated disks are specialized structures found in cardiac muscle cells. These disks contain gap junctions, which are channels that allow for the rapid transfer of electrical impulses between adjacent cells. This allows for synchronized contraction of the heart muscle, ensuring efficient pumping of blood. Therefore, the statement that intercalated disks are modified cell membranes that allow for the rapid transfer of electrical impulses between cells is true.Rate this question:
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- 29.
The left side of the heart pumps blood throughout the _____________ circulation or system.
Correct Answer
SystemicExplanation
The left side of the heart pumps blood throughout the systemic circulation or system. Systemic circulation refers to the flow of blood from the heart to all parts of the body, delivering oxygen and nutrients to the tissues and organs. The blood then returns to the heart through the veins to be pumped out again. This is in contrast to pulmonary circulation, which involves the flow of blood between the heart and the lungs.Rate this question:
- 30.
Are the Cardiac Muscle Cells Voluntary or Involuntary?
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Voluntary
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Involuntary
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None of the above
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Both A and C
Correct Answer
A. InvoluntaryExplanation
Cardiac muscle cells are involuntary. Unlike skeletal muscle cells, which are under voluntary control, cardiac muscle cells are controlled by the autonomic nervous system and the cardiac conduction system. This means that the contraction and relaxation of the cardiac muscle cells occur automatically and are not under conscious control. Therefore, the correct answer is "Involuntary".Rate this question:
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- 31.
What SEPTUM Partitions between the RV and the LV? *****Consists mostly of Myocardium******
Correct Answer
Interventricular Septum
InterventricularExplanation
The septum that partitions between the right ventricle (RV) and the left ventricle (LV) is called the interventricular septum. It consists mostly of myocardium, which is the muscular tissue of the heart.Rate this question:
- 32.
HEART FUNCTION: MINI QUIZRight after DIASTOLE - Once the ventricles are filled and the pressure in the ventricles exceeds the pressure in the Atrium the AV valves (Tricuspid & Mitral) will then __________
Correct Answer
CloseExplanation
After diastole, when the ventricles are filled and the pressure in the ventricles becomes higher than the pressure in the atrium, the AV valves (Tricuspid and Mitral) will close. This closure prevents the backflow of blood from the ventricles into the atria, ensuring that blood flows in the correct direction through the heart.Rate this question:
- 33.
What are the muscles on the walls of the heart that contract to open and close the valves?
Correct Answer
Papillary Muscles
PapillaryExplanation
The correct answer is Papillary Muscles. These muscles are located on the walls of the heart and are responsible for contracting to open and close the valves. They are specifically connected to the atrioventricular valves (mitral and tricuspid valves) by chordae tendineae, which help to control the movement of the valves. The contraction of the papillary muscles ensures that the valves open and close properly, allowing blood to flow in the correct direction through the heart.Rate this question:
- 34.
After blood passes through the small capillaries in the Myocardium, blood drains into cardiac veins and finally into the ___________ for return to the RA.
Correct Answer
Coronary SinusExplanation
After blood passes through the small capillaries in the myocardium, it needs to be drained and returned to the right atrium. This is done through the coronary sinus, which is a large vein located on the posterior side of the heart. The coronary sinus collects deoxygenated blood from the cardiac veins and transports it back to the right atrium, where it can then be pumped to the lungs for oxygenation.Rate this question:
- 35.
The inner layer of the Pericardium is called the ________ Pericardium or the _________.
Correct Answer
Visceral, Epicardium
Visceral EpicardiumExplanation
The correct answer is "Visceral, Epicardium". The inner layer of the Pericardium is called the Visceral Pericardium or the Epicardium. The visceral pericardium is the innermost layer of the pericardium that directly covers the heart, while the epicardium is the outermost layer of the heart wall. Both terms refer to the same inner layer of the pericardium.Rate this question:
- 36.
The Right Atrium is a thin walled chamber that receives Deoxygenated blood from the tissue of the body VIA the ______ and ______.
Correct Answer
SVC, IVC
Superior Vena Cava, Inferior Vena Cava
SVC IVC
Superior Vena Cava Inferior Vena CavaExplanation
The right atrium is a thin-walled chamber that receives deoxygenated blood from the tissue of the body via the superior vena cava (SVC) and the inferior vena cava (IVC). The SVC brings deoxygenated blood from the upper body, including the head, neck, and upper limbs, while the IVC brings deoxygenated blood from the lower body, including the abdomen, pelvis, and lower limbs. Together, the SVC and IVC are the main veins that deliver deoxygenated blood to the right atrium.Rate this question:
- 37.
The __________ System is a continues one way movement. That consists of the ________ and _____________ Vessels
Correct Answer
Circulatory, Heart, Blood
Circulatory Heart BloodExplanation
The circulatory system is a continuous one-way movement that consists of the heart and blood vessels. The heart pumps blood throughout the body, and the blood vessels carry the blood to different parts of the body. This system is responsible for delivering oxygen and nutrients to the cells and removing waste products.Rate this question:
- 38.
The Ventricles pump blood to the _________ leaving the _______
Correct Answer
Arteries, Heart
Arteries HeartExplanation
The ventricles of the heart pump blood to the arteries, which then carry the blood away from the heart to the rest of the body. This is a vital function of the circulatory system, as it ensures that oxygenated blood is delivered to all the organs and tissues in the body. The heart acts as a powerful pump, pushing the blood out into the arteries with each contraction.Rate this question:
- 39.
The AV (Atrioventricular Valves) are located between the ______ and _______ and they are the (From Right to Left) ___________ valve and ________ valve.
Correct Answer
Atria, Ventricles, Tricuspid, Mitral
Atria, Ventricles, Tricuspid, Bicuspid
Atria Ventricles Tricuspid Mitral
Atria Ventricles Tricuspid Bicuspid VExplanation
The AV (Atrioventricular Valves) are located between the Atria and Ventricles. The valve on the right side is called the Tricuspid valve, and the valve on the left side is called the Mitral valve.Rate this question:
- 40.
The Right side of the heart pumps blood within the ___________ system
Correct Answer
PulmonaryExplanation
The right side of the heart pumps blood within the pulmonary system. This system is responsible for carrying deoxygenated blood from the heart to the lungs, where it is oxygenated and then returned to the heart. The right atrium receives deoxygenated blood from the body and pumps it into the right ventricle. The right ventricle then pumps this blood into the pulmonary artery, which carries it to the lungs for oxygenation. Once oxygenated, the blood returns to the heart through the pulmonary veins and enters the left side of the heart to be pumped out to the rest of the body.Rate this question:
- 41.
There are 2 sets of valves in the heart called _____________ and ____________ Valves.
Correct Answer
AV, Semilunar
Atrioventricular, Semilunar
Semilunar, AV
Semilunar, Atrioventricular - 42.
Which valve is located between the LV and AO (aorta) and Allows blood to flow from the LV to the AO when the LV is contracting, but then closes when the LV is done contracting to prevent backflow of blood back into the LV?
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Pulmonic Valve
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Aortic Valve
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Mitral Valve
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Tricuspid Valve
Correct Answer
A. Aortic ValveExplanation
The aortic valve is located between the left ventricle (LV) and the aorta. It allows blood to flow from the LV to the aorta when the LV is contracting, but then closes when the LV is done contracting to prevent backflow of blood back into the LV.Rate this question:
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- 43.
HEART FUNCTION: MINI QUIZ Once the Pressure in the Arteries exceed the pressure in the Ventricles the Semilunar valves_________?
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Close
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Open
Correct Answer
A. CloseExplanation
When the pressure in the arteries exceeds the pressure in the ventricles, the semilunar valves close. This is because the semilunar valves are designed to prevent backflow of blood from the arteries into the ventricles. When the pressure in the arteries is higher, it indicates that blood is being pumped out of the ventricles and into the arteries. Closing the semilunar valves ensures that blood only flows in one direction, from the ventricles to the arteries, and prevents any backflow.Rate this question:
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- 44.
HEART FUNCTION: MINI QUIZVentricular Contraction is called ___________
Correct Answer
SystoleExplanation
Ventricular Contraction refers to the contraction of the ventricles in the heart, which is responsible for pumping blood out of the heart and into the circulatory system. This contraction is known as systole, which is the phase of the cardiac cycle when the heart muscle contracts and blood is ejected from the ventricles. During systole, the pressure in the ventricles increases, causing the semilunar valves to open and blood to be pumped out of the heart. Systole is an essential part of the heart's function and is crucial for maintaining blood flow throughout the body.Rate this question:
- 45.
The main ARTERIES that supply blood to the Myocardium are the right and left _____________. They receive blood when the heart relaxes (when the AV is CLOSED causing blood left in the AO to flow into the arteries).
Correct Answer
Coronary ArteriesExplanation
The main arteries that supply blood to the myocardium are the right and left coronary arteries. These arteries receive blood when the heart relaxes, which causes the atrioventricular (AV) valves to close, allowing blood left in the aorta to flow into the arteries. The coronary arteries are responsible for delivering oxygenated blood to the heart muscle, ensuring its proper function.Rate this question:
- 46.
What are the Fibrous threads that attach the papillary muscles to the Mitral and Tricuspid Valve called?
Correct Answer
Chordae TendineaeExplanation
The fibrous threads that attach the papillary muscles to the Mitral and Tricuspid Valve are called Chordae Tendineae. These structures play a crucial role in the functioning of the heart valves. The Chordae Tendineae prevent the valves from inverting or prolapsing during ventricular contraction by anchoring them to the papillary muscles. This ensures that the blood flows in the correct direction and prevents regurgitation of blood back into the atria.Rate this question:
- 47.
Which Valve allows blood to Flow from the RV to the PA when the RV is contracting, but closes when the RV is done contracting to prevent backflow of blood back into the RV?
Correct Answer
Pulmonic Valve
PulmonicExplanation
The pulmonic valve is responsible for allowing blood to flow from the right ventricle (RV) to the pulmonary artery (PA) when the RV contracts. This valve opens to allow blood to be pumped into the pulmonary circulation. However, once the RV is done contracting, the pulmonic valve closes to prevent the backflow of blood back into the RV. This ensures that blood flows in one direction, from the RV to the PA, and prevents any regurgitation or leakage of blood.Rate this question:
- 48.
The Heart is a ____________ responsible for pumping blood throughout the blood vessels of the body.
Correct Answer
Muscular OrganExplanation
The heart is a muscular organ that contracts and relaxes to pump blood throughout the body. It consists of specialized cardiac muscle tissue that allows it to generate its own electrical impulses, ensuring a regular and coordinated heartbeat. The heart's main function is to circulate oxygenated blood to the body's tissues and organs, while simultaneously removing waste products and carbon dioxide. Its muscular nature enables it to generate enough force to propel the blood through the blood vessels, ensuring proper oxygenation and nourishment of all body tissues.Rate this question:
- 49.
HEART FUNCTION: MINI QUIZ Once the pressure in the Ventricles exceeds the pressure in the Arteries, the Semilunar valves (Pulmonic & Aortic) will ____________ and the Ventricles will now _________ . ***** This is an example of Ventricular Contraction*****
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Open, Contract
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Close, Relax
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Close, Contract
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Open, Relax
Correct Answer
A. Open, ContractExplanation
When the pressure in the Ventricles exceeds the pressure in the Arteries, the Semilunar valves (Pulmonic & Aortic) will open and the Ventricles will now contract.Rate this question:
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Aug 21, 2010Quiz Created by
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