Exam (elaborations)
Cardiovascular System The Heart Detailed Questions and Expert Answers
- Course
- Cardiovascular system
- Institution
- Johns Hopkins University
Cardiovascular System The Heart Detailed Questions and Expert Answers
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Cardiovascular System The Heart DetailedQuestions and Expert Answers
List the 3 components of the Cardiovascular System (CV System) - ANS 1. blood
2. the heart
3. blood vessels
Which component of the CV system contains cardiac muscle? - ANS the heart
Which component of the CV system contains smooth muscle? - ANS blood vessels
What enclosed cavity is the heart found in? - ANS pericardial cavity
What tissue lines the pericardial cavity? - ANS parietal pericardium
Which pericardial tissue covers the heart? - ANS visceral pericardium
What lies between the 2 pericardial layers? - ANS a small space containing
pericardial fluid
How large is the heart? - ANS roughly the size of a fist
, How many times a day does the heart beat? - ANS roughly 100,000 times!
What are the 3 layers of heart tissue? - ANS 1. epicardium
2. myocardium
3. endocardium
Which layer of heart tissue is the same as the visceral pericardium? - ANS the
epicardium
What tissue layer makes up the bulk of the heart? - ANS the myocardium
Which heart tissue layer lines the heart & is actually in contact with blood? - ANS
the endocardium
Does the blood flowing through the heart nourish the myocardium? - ANS No. The
myocardium is too thick. The heart has its own blood supply called the coronary
circulation.
What types of cells make up the bulk of the myocardium? - ANS cardiac muscle
cells, which are branched, contain intercalated discs, and are striated &
involuntary cells
How many "chambers" are found inside the heart? - ANS 4
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