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Exercise 3

Deoxygenated blood entering the right atrium from the head/neck/upper extremities flows through the [blank] vena cava, while blood from the lower portion of the body flows through the [blank] vena cava. superior, inferior
Major coronary artery that follows the anterior interventricular sulcus is the: anterior interventricular artery
Major coronary vein that follows the anterior interventricular sulcus ins the: great cardiac vein
The pulmonary (arteries or veins) carry blood from the heart to the lungs, while the pulmonary (arteries or veins) carry blood from the lungs to heart. arteries and veins
Trace the cell of a single RBC as it goes through the heart: Superior vena cava -> right atrium -> right ventricle -> left atrium -> left ventricle -> aorta
Mitral (bicuspid) valve separates: left atrium and left ventricle
Aortic Valve separates left ventricle and aorta
Tricuspid valve separates right atrium and right ventricle
Pulmonary valve separates right ventricle and pulmonary trunk
Layers of the heart from most superficial to deep are: Pericardium - myocardium - endocardium
Each atria has an ear-like (flap-like) conical muscular pouch that arises from it, which is visible when looking at the surface of the heart. Referred to as: auricles
What is the first branch of the aorta as blood leave the heart? Brachiocephalic artery
What muscle lines the inner surface of the atria, giving their walls a comb-like appearance? Pectinate muscle
The tricuspid valve has [#] flaps while the mitral valve has [#] flaps. 3 and 2
While the inner atria walls are lined by [blank], the inner ventricle walls are lined with [blank]. pectinate muscle and trabeculae carneae
What two structures function together to help prevent backflow through the tricuspid and mitral valves? Papillary muscles and chordae tendineae
The aortic and pulmonary valves are (AV or semilunar) valves, while the tricuspid and mitral valves are (AV or semilunar) valves. semilunar and AV
What causes CAD? a partial blockage of a coronary vessel, which can be caused by either a plaque buildup or a thrombus (blood clot) in the vessel
What causes an MI versus CAD? MIs are caused by the complete blockage of a coronary vessel, while CAD is only a partial blockage
Someone who has chest pain with exertion, and not at rest, is likely having an MI rather than CAD. True or False? False, MI pain continues at rest
What is the purpose of ductus arteriosus in fetal blood circulation? Allows blood to bypass the pulmonary circuit and go straight from the pulmonary artery to the aorta
What is the corresponding structure of ductus arteriosus in adults? grows into ligamentum arteriosum, connective tissue string
While listening to your partner's apical and then radial pulse, you notice a large pulse deficit. What might this indicate? cardiac impairment/ a weak heart that is unable to efficiently pump blood
Difference in wall thickness of left and right ventricles: left is thicker than right.
How to calculate pulse pressure: difference between systolic and diastolic pressures
Created by: connorquinby



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