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The human body in health and illness respiratory system chapter 22 Exam Study Guide
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The human body in health and illness respiratory system chapter 22 Exam Study Guide
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©THEBRIGHT EXAM SOLUTIONS 2024/2025ALL RIGHTS RESERVED.
The Human Body in Health and Illness
Chapter 16 & 17 Exam Questions With
Verified Answers
This layer of the heart allows it to act as a pump - Answers✔myocardium
This sling-like structure supports the heart - Answers✔pericardium
This is the hardest working cardiac chamber, and therefore has the thickest myocardium -
Answers✔left ventricle
The right ventricle pumps blood from the pulmonary capillaries to the left atrium -
Answers✔pulmonary artery
Vessel (s) that carry (ies) blood from the pulmonary capillaries to the left atrium -
Answers✔pulmonary veins
The aorta receives blood from the - Answers✔left ventricle
Blood flows from the right atrium through this atrioventricular valve to the right ventricle -
Answers✔tricuspid
Which of the following structures "sees" unoxyenated blood - Answers✔pulmonary artery
Which of the following "sees" oxygenated blood - Answers✔pulmonary veins
Chordae tendineae are not associated with this valve - Answers✔aortic
With which of the following is "lubb-dubb" associated? - Answers✔closing of heart valves
Which of the following supplies oxygenated blood to the heart muscle - Answers✔coronary
arteries
Where does the cardiac action potential (cardiac impulse) normally originate - Answers✔SA
node
The pacemaker of the heart is located in the upper wall of the - Answers✔right atrium
1
, ©THEBRIGHT EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
Referring to the ECG, the P wave represents - Answers✔atrial depolarization
Referring to the ECG, the QRS complex represents - Answers✔ventricular depolarization
This structure connects the cusps of the AV valves to the ventricles - Answers✔chordae
tendineae
These conducting fibers rapidly spread the electrical signal throughout the ventricles -
Answers✔Purkinje fibers
Which of the following is least related to the mitral valve - Answers✔semilunar
All of the following are electrical terms except - Answers✔sarcomere
Which of the following must precede ventricular contraction - Answers✔ventricular
depolarization
Which of the following semilunar valves "sees" oxygenated blood - Answers✔aortic
Complete the sequence: blood flows from the right atrium to the right ventricle to the pulmonary
artery to the - Answers✔pulmonary capillaries
What event causes the pulmonic valve to open - Answers✔an increase in the pressure within the
right ventricle
Which layer of the heart has actin, myosin and intercalated discs - Answers✔myocardium
The pericardium is part of the - Answers✔epicardium
The mitral and bicuspid valves - Answers✔are the same valve
The pulmonic and aortic valves - Answers✔are semilunar valves
Complete the sequence: blood flows from the pulmonary capillaries to the pulmonary veins to
the left atrium to the left ventricle to the - Answers✔aorta
The atrioventricular node (AV node) - Answers✔delays the electrical signal coming from the
atria into the ventricles
The purpose of this structure is to momentarily delay the spread of the signal from the atrium to
the ventricles - Answers✔AV node
Which of the following is an electrical event - Answers✔depolarization
Which of the following is a result of ventricular contraction - Answers✔blood is pumped into the
pulmonary artery and the aorta
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