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URI Anatomy Quiz 6

URI Anatomy Quiz 6 The Heart and Circulation

The structure that does NOT have the anatomy of a vessel, but carries blood from the heart walls back to the right atrium is the _____. coronary sinus
The heart sounds (lub/dub) are caused by the opening and closing of the valves associated with the heart. False
The thin walled vessels that receive blood from the capillaries are the _____. The blood that they hold then drains into the veins. venules
In the fetus the arteries carry _____ (be specific). Most of the fetal veins do not carry this. mixed blood
The systemic system of an adult moves _____ (be specific) to the tissues to ensure their environment will sustain them. This is not the case in the pulmonary system. oxygen rich blood
The depression between the ventricles is the _____. This is where some of the large coronary arteries and veins carry blood to and from the cells of the heart walls. interventricular sulcus
The fibrous bridge found between the aorta and the pulmonary trunk is the _____. It formerly served as one of the bypasses of the pulmonary circulation in the fetus. ligamentum arteriosum
In the human, the _____ directs blood from the area superior to the diaphragm to the right atrium. superior vena cava
In the adult the blood normally flows from the right atrium into the _____ (name of the chamber or vessel). right ventricle
The muscular ridges found on the walls of the ventricles are the _____. They are most obvious just caudal to the tricuspid valve in the calf heart. papillary muscles
The vessel that the right ventricle pumps blood into is the _____. pulmonary trunk
The depression found between the atria and the ventricles is called the _____. In this depression we find coronary blood vessels. coronary sulcus
The valve between the right atrium and right ventricle is known as the _____. This atrioventricular valve is important functionally because it prevents backflow of blood from the right ventricle to the right atrium. tricuspid valcve
The _____ is the heart chamber that pumps blood into the aorta. right ventricle
The vessels that supply blood to the walls of large vessels are known as the _____. Functionally these are very important as the cells of vessel walls would die otherwise do to lack of a suitable environment for life. vasa vasorum
The _____ in conjunction with one-way semilunar valves helps to move blood against gravity from the feet back to the heart. skeletal muscle pump
The circulation to the walls of the heart is _____ (be specific). coronary circulation
The arteries of the pulmonary system carry _____ (be specific) to the lungs. The arteries of the systemic system do not carry this. oxygen deficient blood
The first artery to carry deoxygenated blood in the adult human is the _____. pulmonary trunk
The chordae tendineae are attached to the _____ on the walls of the ventricles. papillary muscles
The thin oval portion of the interatrial septum is called the _____. fossa ovalis
The _____ is the first heart chamber to receive blood from the pulmonary veins. left atrium
The pulmonary semilunar valves and the _____ prevent the back flow of blood from the pulmonary trunk and aorta respectively. aortic semilunar valves
Vessels that carry blood away from the heart chambers are the ____ arteries
In the adult human all arteries carry oxygenated blood and all veins carry deoxygenated blood. False
The two major functions of the circulatory system are diffusion and _____. bulk flow
The _____ carries the most oxygenated blood in the fetus. 1 umbilical vein
_____ requires fully functional arteriole to arteriole anastomoses. collateral circulation



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