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PDF Download FREE AND STUDY GAMES ABOUT A&P CHP 15 EXAM
QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -73 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: At the level of the knee, the anterior and posterior tibial veins form a single trunk called the ___ vein.
Answer:
popliteal
Question 2: What are some characteristics of cardiac muscle fibers?
Answer:
connected by intercalated discs, branching
Question 3: How does the heart pump blood?
Answer:
The atria contract, then the ventricles, followed by relaxation of all four chambers.
Question 4: Where is the SA node located?
Answer:
right atrium near the superior vena cava opening
Question 5: What are two major vessels that bring blood from the body back to the right atrium?
Answer:
inferior vena cava, superior vena cava Question 6: Cardiac muscle cells can contract as a unit because adjacent cells are connected by
______
Answer:
intercalated disks
Question 7: Which arteries supply the head, neck, and brain?
Answer:
subclavian artery, common carotid artery Question 8: The three layers of the heart, in the correct order from superficial to deep, are the____, the _____ and the ____
Answer:
epicardium, myocardium, endocardium Question 9: Why does the body need skeletal muscle contraction, pressure changes during breathing, and vasoconstriction to move blood through the veins?
Answer:
The blood pressure in the veins is too low to push blood toward the heart.Question 10: The volume of blood ejected from the heart with each contraction is called the
______.
Answer:
stroke volume Question 11: The subclavian artery becomes the ___artery after it passes between the clavicle and first rib.
Answer:
axillary
Question 12: During the heart's operation, when the atria contract, the ventricles are ______; when the ventricles contract the atria are ______.
Answer:
relaxing; relaxing Question 13: The structures in the neck, head and brain receive blood supply from branches of the ___ artery and _____ carotid artery.
Answer:
subclavian: common
Question 14: The heart and blood vessels are components of the ______ system.
Answer:
cardiovascular
Question 15: What organ is housed within the thoracic cavity?
Answer:
heart
Question 16: Blood from the hand drains in the ____ veins, which drain into the
_____and ulnar veins, which in turn merge to form the_____ veins.
Answer:
Blank 1: digital , Blank 2: radial
Blank 3: brachial
Question 17: True or false: The cardiac center is located in the pons.
Answer:
F Question 18: What formula best describes the relationship between the factors that determine blood pressure?
Answer:
cardiac output x peripheral resistance
Question 19: What is systolic pressure?
Answer:
maximum pressure achieved in the arteries during ventricular systole Question 20: What is the name of the main vessels that supply the heart tissue with blood?
Answer:
coronary arteries Question 21: True or false: The heart has a skeleton.
Answer:
T
Question 22: What is the skeleton of the heart?
Answer:
Fibrous tissue that gives the heart its shape and anchors the myofibers.Question 23: Systolic pressure is the arterial blood pressure attained during what phase of the cardiac cycle?
Answer:
ventricular contraction Question 24: The rise and fall of blood ___ in the heart chambers is the cause of the opening and closing of heart valves.
Answer:
pressure Question 25: Which of the following describes the path of a blood cell from the superior vena cava as it makes its way through the heart?
Answer:
right atrium --> right ventricle --> pulmonary artery --> lung --> pulmonary vein --> left atrium --> left ventricle --> aorta Question 26: The ___ is the largest-diameter artery in the body and it extends upwards from the left ____ of the heart.
Answer:
aorta, ventricle
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