Podcast
Questions and Answers
Where is the space between the lungs, where the heart lies, located?
Where is the space between the lungs, where the heart lies, located?
- Pericardium
- Apex
- Vena Cava
- Base (correct)
What is the outermost layer of the heart called?
What is the outermost layer of the heart called?
- Endocardium
- Pericardium
- Myocardium
- Epicardium (correct)
Which structure carries deoxygenated blood to the lungs?
Which structure carries deoxygenated blood to the lungs?
- Pulmonary Artery (correct)
- Vena Cava
- Pulmonary Vein
- Aortic Valve
What is the function of the tricuspid valve?
What is the function of the tricuspid valve?
Which valve is located between the left atrium and the left ventricle?
Which valve is located between the left atrium and the left ventricle?
What is the largest artery in the body?
What is the largest artery in the body?
Where does the sinoatrial node generate electrical impulses?
Where does the sinoatrial node generate electrical impulses?
Which layer of the heart is the myocardium?
Which layer of the heart is the myocardium?
What do the pulmonary veins bring to the heart?
What do the pulmonary veins bring to the heart?
Which part of the heart coordinates the electrical signals that regulate the rhythmic contraction of the heart muscle?
Which part of the heart coordinates the electrical signals that regulate the rhythmic contraction of the heart muscle?
During which phase does S1 occur, signaling the ejection of blood from the ventricles into the pulmonary artery and aorta?
During which phase does S1 occur, signaling the ejection of blood from the ventricles into the pulmonary artery and aorta?
Which type of capillary is found in the liver and bone marrow, allowing for the passage of large substances like proteins?
Which type of capillary is found in the liver and bone marrow, allowing for the passage of large substances like proteins?
What is the term for the blood vessels that carry blood away from the heart?
What is the term for the blood vessels that carry blood away from the heart?
Which part of the heart is described as the pointed end?
Which part of the heart is described as the pointed end?
What term refers to the results from the pressure of blood against a weakened area in the wall of an artery?
What term refers to the results from the pressure of blood against a weakened area in the wall of an artery?
Where does the coronary sinus collect deoxygenated blood from?
Where does the coronary sinus collect deoxygenated blood from?
What is the primary mechanism of capillary exchange?
What is the primary mechanism of capillary exchange?
Which vessels are referred to as the exchange vessels of the circulatory system?
Which vessels are referred to as the exchange vessels of the circulatory system?
Which term describes the condition that results when fluid filters out of the capillaries faster than it’s reabsorbed and accumulates in the tissues?
Which term describes the condition that results when fluid filters out of the capillaries faster than it’s reabsorbed and accumulates in the tissues?
What is the term for the space between the lungs and beneath the sternum where the heart resides?
What is the term for the space between the lungs and beneath the sternum where the heart resides?
Which vessels return blood to the heart?
Which vessels return blood to the heart?
What is the function of the sinoatrial node in the heart?
What is the function of the sinoatrial node in the heart?
Where is the epicardium located in the heart?
Where is the epicardium located in the heart?
Which valve is located between the right atrium and the right ventricle?
Which valve is located between the right atrium and the right ventricle?
Which blood vessel carries deoxygenated blood to the lungs?
Which blood vessel carries deoxygenated blood to the lungs?
What is the primary role of the aortic valve in the heart?
What is the primary role of the aortic valve in the heart?
Where does the pericardium lie in relation to the other layers of the heart?
Where does the pericardium lie in relation to the other layers of the heart?
What does the endocardium refer to in relation to the heart?
What does the endocardium refer to in relation to the heart?
What is the key role of pulmonary veins in relation to the heart?
What is the key role of pulmonary veins in relation to the heart?
What is one of the primary functions of vena cava in relation to blood circulation?
What is one of the primary functions of vena cava in relation to blood circulation?
What is one of the main roles of mediastinum in relation to its location?
What is one of the main roles of mediastinum in relation to its location?
What is the function of the Purkinje fibers?
What is the function of the Purkinje fibers?
Where does the coronary sinus collect blood from?
Where does the coronary sinus collect blood from?
What is the role of the atrioventricular node in the heart's conduction system?
What is the role of the atrioventricular node in the heart's conduction system?
What occurs at the beginning of ventricular diastole?
What occurs at the beginning of ventricular diastole?
Where are capillaries found in the circulatory system?
Where are capillaries found in the circulatory system?
What causes edema in the body?
What causes edema in the body?
What is the unique ability of cardiac muscles to contract without nervous stimulation called?
What is the unique ability of cardiac muscles to contract without nervous stimulation called?
Where does the pulmonary circulation begin?
Where does the pulmonary circulation begin?
Which vessels return blood to the heart?
Which vessels return blood to the heart?
What is the term for the smallest blood vessels in the vascular system?
What is the term for the smallest blood vessels in the vascular system?
Where is the sinoatrial node located in the heart?
Where is the sinoatrial node located in the heart?
What is the role of the tricuspid valve in the heart's conduction system?
What is the role of the tricuspid valve in the heart's conduction system?
Which structure carries deoxygenated blood to the lungs?
Which structure carries deoxygenated blood to the lungs?
What is the primary function of mediastinum in relation to its location?
What is the primary function of mediastinum in relation to its location?
Which part of the heart coordinates the electrical signals that regulate the rhythmic contraction of the heart muscle?
Which part of the heart coordinates the electrical signals that regulate the rhythmic contraction of the heart muscle?
What is the largest artery in the body called?
What is the largest artery in the body called?
What is carried by pulmonary veins from the lungs to the heart?
What is carried by pulmonary veins from the lungs to the heart?
Where is the epicardium located in relation to other layers of the heart?
Where is the epicardium located in relation to other layers of the heart?
What is regulated by aortic valve (aortic semilunar valve)?
What is regulated by aortic valve (aortic semilunar valve)?
What happens when deoxygenated blood enters pulmonary vein?
What happens when deoxygenated blood enters pulmonary vein?
Which part of the heart is responsible for the unique ability of the cardiac muscle to contract without nervous stimulation?
Which part of the heart is responsible for the unique ability of the cardiac muscle to contract without nervous stimulation?
What occurs at the beginning of ventricular diastole when the semilunar valves close?
What occurs at the beginning of ventricular diastole when the semilunar valves close?
Where does the polarization of cardiac cells occur?
Where does the polarization of cardiac cells occur?
What is the key role of the coronary sinus in the circulatory system?
What is the key role of the coronary sinus in the circulatory system?
What is the primary mechanism of capillary exchange in the circulatory system?
What is the primary mechanism of capillary exchange in the circulatory system?
Where are sinusoid capillaries found in the circulatory system, allowing for the passage of large substances like proteins?
Where are sinusoid capillaries found in the circulatory system, allowing for the passage of large substances like proteins?
What is the term for the results from the pressure of blood against a weakened area in the wall of an artery?
What is the term for the results from the pressure of blood against a weakened area in the wall of an artery?
Where is the double-walled sac that surrounds the heart and root of the great vessels located?
Where is the double-walled sac that surrounds the heart and root of the great vessels located?
What refers to the space between the lungs and beneath the sternum where the heart resides?
What refers to the space between the lungs and beneath the sternum where the heart resides?
Where does pulmonary circulation begin in relation to the heart's chambers?
Where does pulmonary circulation begin in relation to the heart's chambers?
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Study Notes
- Mediastinum: space between lungs where heart lies
- Apex: pointed end of heart resting on diaphragm
- Base: top of heart where vessels enter and leave, specifically the Left AV node
- Aorta: largest artery in the body
- Endocardium: hearts inner most layer
- Pericardium: hearts outermost layer
- Myocardium: middle layer of heart, cardiac muscle
- Epicardium: hearts outermost layer
- Pulmonary Artery: carries deoxygenated blood to lungs
- Vena Cava: veins carrying deoxygenated blood to heart
- Pulmonary Vein: brings oxygenated blood from lungs to heart
- Tricuspid Valve: regulates flow of deoxygenated blood from right atrium to right ventricle
- Bicuspid (Mitral) Valve: regulates flow of oxygenated blood from left atrium to left ventricle
- Pulmonic Valve: carries oxygenated blood from lungs to left atrium
- Aortic Valve: regulates flow of oxygenated blood from left ventricle into aorta
- Sinoatrial Node: heart's natural pacemaker, generating electrical impulses for heartbeat
- Atrioventricular Node: coordinates electrical signals for heart muscle contraction
- Purkinje Fibers: stimulate ventricular muscle contraction and coordination
- Cardiac Output: blood pumped out by ventricles per minute
- Coronary Sinus: large vein dividing left and right atria, collects deoxygenated blood from myocardium
- S1 and S2: sounds heard during heartbeats, signaling ventricular systole and diastole respectively
- Capillaries: smallest blood vessels in vascular system, site of nutrient, waste, and hormone transfer
- Pericardial sac: double-walled sac surrounding heart and root of great vessels
- Pulmonary Circulation: circulatory system that begins at right ventricle and involves circulation of blood through lungs
- Systemic Circulation: circulatory system that begins at left ventricle and involves circulation of blood through body
- Endocarditis: inflammation of inner heart layer (Endocardium)
- Automaticity: unique ability of cardiac muscle to contract without nervous stimulation.
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