CARDIOVASCULAR SYSTEM
COMPREHENSIVE EXAMS SET 2026
SOLVED QUESTIONS
●● 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
COMPREHENSIVE EXAMS SET 2026
SOLVED QUESTIONS
●● 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