PULMONARY CIRCULATION
PREPARATION TEST 2026 QUESTIONS AND
CORRECT ANSWERS GRADED A+
● Which component of the CV system contains cardiac muscle? Answer:
the heart
● Which component of the CV system contains smooth muscle?
Answer: blood vessels
● What enclosed cavity is the heart found in? Answer: pericardial cavity
● What tissue lines the pericardial cavity? Answer: parietal pericardium
● Which pericardial tissue covers the heart? Answer: visceral
pericardium
● What lies between the 2 pericardial layers? Answer: a small space
containing pericardial fluid
● How large is the heart? Answer: roughly the size of a fist
, ● How many times a day does the heart beat? Answer: roughly 100,000
times!
● What are the 3 layers of heart tissue? Answer: 1. epicardium
2. myocardium
3. endocardium
● Which layer of heart tissue is the same as the visceral pericardium?
Answer: the epicardium
● What tissue layer makes up the bulk of the heart? Answer: the
myocardium
● Which heart tissue layer lines the heart & is actually in contact with
blood? Answer: the endocardium
● Does the blood flowing through the heart nourish the myocardium?
Answer: 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? Answer:
cardiac muscle cells, which are branched, contain intercalated discs, and
are striated & involuntary cells
PREPARATION TEST 2026 QUESTIONS AND
CORRECT ANSWERS GRADED A+
● Which component of the CV system contains cardiac muscle? Answer:
the heart
● Which component of the CV system contains smooth muscle?
Answer: blood vessels
● What enclosed cavity is the heart found in? Answer: pericardial cavity
● What tissue lines the pericardial cavity? Answer: parietal pericardium
● Which pericardial tissue covers the heart? Answer: visceral
pericardium
● What lies between the 2 pericardial layers? Answer: a small space
containing pericardial fluid
● How large is the heart? Answer: roughly the size of a fist
, ● How many times a day does the heart beat? Answer: roughly 100,000
times!
● What are the 3 layers of heart tissue? Answer: 1. epicardium
2. myocardium
3. endocardium
● Which layer of heart tissue is the same as the visceral pericardium?
Answer: the epicardium
● What tissue layer makes up the bulk of the heart? Answer: the
myocardium
● Which heart tissue layer lines the heart & is actually in contact with
blood? Answer: the endocardium
● Does the blood flowing through the heart nourish the myocardium?
Answer: 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? Answer:
cardiac muscle cells, which are branched, contain intercalated discs, and
are striated & involuntary cells
