A&P II - Chapter 18 - The Heart
Authored by Ariane McCranie
Biology
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the coronary circulation?
Provide a blood supply to the lungs
Provide a blood supply to the heart
Provide a blood supply to the pericardium
Provide a blood supply to the aortic arch
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ligamentum arteriosum?
A ligament attaching the aorta to the superior vena cava
A ligament securing the aorta
A remnant of the foramen ovale
A remnant of the ductus arteriosus
Answer explanation
The ligamentum arteriosum is a remnant of the ductus arteriosus. The ductus arteriosus is a fetal shunt that connects the pulmonary trunk to the aorta.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which chamber of the heart exits into the pulmonary trunk?
Right Atrium
Right Ventricle
Left Atrium
Left Ventricle
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the ear like flaps that are attached to the top chambers of the heart.
Atrium
Coronary Sinus
Pectinate Muscles
Auricle
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The first branch off the arch of the aorta is the brachiocephalic
artery in both the sheep and the human.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The base of the heart is located at the bottom of the heart.
True
False
Answer explanation
The base is located at the top of the heart. It is unusual to see the largest portion of an organ at the top. Typically, the base is at the bottom of an organ, as in the lungs.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The most muscular chamber of the heart is the right ventricle.
True
False
Answer explanation
The left ventricle is responsible for pumping blood out to the body. This requires a lot of force. The left ventricle is the most muscular in order to pump the blood with adequate force.
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