BMS 107 The Heart Study
Set Exam
If you were to cut into a heart with a scalpel, what is the correct order for the layers of
the heart wall the scalpel would pass through?Answer epicardium, myocardium,
endocardium
T or F: The fossa ovalis is a thin spot or depression in the interatrial septum.Answer true
tricuspid valveAnswer deoxygenated blood
coronary arteriesAnswer provide blood to the heart
coronary veinsAnswer drain from from the heart
Which of the following are branches of the left coronary artery?Answer Circumflex
branch, anterior interventricular branch
What structure (vessel) is indicated by the line?Answer pulmonary trunk
Which of the following is FALSE regarding the location of the heart?
a. The base of the heart rests on the diaphragm.
b. The heart is located within the mediastinum.
c. About two thirds of the heart's mass lies to the left of the body's midline.
d. The apex of the heart rests on the diaphragm.
e. The heart is located between the sternum and the vertebral column.Answer a. The
base of the heart rests on the diaphragm.
There are 4 chambers inside the heart. Which chamber(s) receive blood from outside
the heart?Answer right and left atrium
T or F: Pericardial fluid is located in a space external (superficial) to the visceral
pericardium.Answer true
Which of the following represents the sequence of the cardiac conduction
pathway?Answer 4. SA NODE , 1 ATRIA, 3 AV NODE, 5 AV BUNDLE, 6 PURKINJE Fibers,
, 2 ventricular myocardium
pulmonary circuitAnswer R VENT >PSLV>PT> PAAS> LUNGS> pvv's> L atrium
systemic circuitAnswer l vent> aslv>aorta. body tissues> SYSTEMIC VVS> R ATRIUM
Which of the following contains the wall with the thickest myocardium?Answer b. left
ventricle
Which of the following correctly lists the flow of deoxygenated blood through the
heart?Answer a. superior and inferior vena cava; right atrium; tricuspid valve; right
ventricle; pulmonary artery
The right and left coronary arteries branch from which blood vessel?Answer d.
ascending aorta
The ______________ returns deoxygenated blood from the heart wall to the right
atrium.Answer coronary sinus
In a normal cardiac cycle, the contraction phase of a heart chamber is termed
_____________.Answer systole
At the same time that the left ventricle pumps oxygenated blood to the aorta, the right
ventricle pumps deoxygenated blood to the __________________.Answer pulmonary trunk
The valve that prevents backflow of blood into the right ventricle is the
__________________.Answer pulmonary semilunar valve
Which of the following contain papillary muscles?Answer c. left and right ventricles
How do valves affect blood flow and what is their ultimate function?Answer prevent
backflow of blood
What is the correct order in which blood flows through these valves of the heart, starting
in the right atrium?Answer tricuspid, pulmonary semiL, bicuspid, aortic semilunar
Where do arteries carry blood?Answer Oxygenated blood away from heart
Where do veins carry blood?Answer Deoxygenated blood towards the heart
SystoleAnswer phase of cardiac cycle when chambers are contracting (ejecting blood)
DiastoleAnswer phase of cardiac cycle when chambers relaxing (refilling with blood)
What are some general characteristics of the heart?Answer - blood flow is
unidirectional
- 2 side by side pumps work at same rate and pump same volume.
- one pumps to lungs, other to body tissues
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