Chapter 17 and 18 - Heart and Blood Flashcards
Which of the following activities heart sounds are normly chiefly associated?
Closure of heart valves
Which heart chambers forms most of the hearts anterior surface?
Right ventricle
The heart chamber that pumps oxygenated around the systemic circuit is the?
Left ventricle
Of the three layers of the heart wall, the layer that contains the cardiac muscle is the?
Myocardium
During the left ventricle systole, blood exits the heart to enter the?
Aorta
What structures anchor the chordae tendinae?
Papillary muscles
Blood returning to the heart from the head region would enter the heart through which vessle?
The superior vena cava
Blood is carried to the capillaries in the myocardium by the way of?
Coronary arteries
The right ventricle pupms blood in to which vessel?
Pulmonary trunk
The semilunar valves are closed when?
The ventricles are relaxing
Blood within the pulmonary veins returns to the?
Left atrium
The heart chamber with the thickest wall is the?
The Left Ventricle
The epicardium is the?
Visceral layer of serous pericardium
Which of the following is not a part of the conduction system of the heart?
AV Valve
The three arteries that branch from the aortic arch are the?
Brachicephalic, left subclavian, and left common carotid arteries
Fenestrated capillaries?
Have pores in their walls
Blood pressure is the highest in the?
Elastic fibers
The abdominal aorta divides at its distal end into which arteries?
Common iliac arteries
The circulatory route that runs from the digestive tract to the liver is called?
Hepatic portal circulation
Semilunar valves are located?
Between ventricles and the great arteries
The “heart strings” are?
Chordae tendinae
The inner endothelial layer that lines the heart is the?
Endocardium
Which layer of blood vessels contains smooth muscle tissue?
Tunica media
Most small molecules pass through a capillary wall through which route?
Intercellular clefts
