Podcast
Questions and Answers
Which type of muscle makes up the bulk of the heart?
Which type of muscle makes up the bulk of the heart?
- Skeletal muscle
- Cardiac muscle (correct)
- Smooth muscle
- Intercalated muscle
What is the function of intercalated discs in cardiac muscle cells?
What is the function of intercalated discs in cardiac muscle cells?
- To allow for electrical synchronization (correct)
- To provide structural support
- To facilitate nutrient exchange
- To regulate muscle contraction
What is the innermost lining of the muscle wall of the heart called?
What is the innermost lining of the muscle wall of the heart called?
- Myocardium
- Epicardium
- Endocardium (correct)
- Pericardium
What type of tissue makes up the lining of the chambers and vessels of the heart?
What type of tissue makes up the lining of the chambers and vessels of the heart?
What structures project outwards from the endocardium and help add force to the contraction of the heart wall?
What structures project outwards from the endocardium and help add force to the contraction of the heart wall?
Which type of vessel carries blood away from the heart?
Which type of vessel carries blood away from the heart?
Which type of vessel carries blood towards the heart?
Which type of vessel carries blood towards the heart?
What are the microscopic vessels that carry blood between arteries and veins called?
What are the microscopic vessels that carry blood between arteries and veins called?
What are the large vessels that connect the heart to the rest of the cardiovascular system called?
What are the large vessels that connect the heart to the rest of the cardiovascular system called?
Which arteries serve the cardiac muscle tissue?
Which arteries serve the cardiac muscle tissue?
Which chamber of the heart is located at the apex?
Which chamber of the heart is located at the apex?
What is the purpose of the pericardial fluid?
What is the purpose of the pericardial fluid?
Where is the heart located within the thorax?
Where is the heart located within the thorax?
What is the size of the average adult heart?
What is the size of the average adult heart?
What is the outermost layer of the heart wall called?
What is the outermost layer of the heart wall called?
Which layer of the pericardium covers the exterior of the heart?
Which layer of the pericardium covers the exterior of the heart?
Where is the upper border of the heart located?
Where is the upper border of the heart located?
Where can the heart be listened to the loudest with a stethoscope?
Where can the heart be listened to the loudest with a stethoscope?
What is the purpose of the pericardium?
What is the purpose of the pericardium?
How many layers make up the heart wall within all four chambers?
How many layers make up the heart wall within all four chambers?
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