Histology MCQs/Cardiovascular System

All but one of following cell addhesions are common in the intercalated disck. Which is not common? + Zonula occludens - Fascia adherens - Gap junction - Desmosome
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{All but one of following vessels does not contain valves. Which one (does not contain valves)? - Great saphenous vein - Inferior vena cava + Renal artery - Azygos vein
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{Are there valves in lymphatic vessels? + Yes, they are - Yes, they are, but in the thoracic duct only - Yes, they can be here, but as an anatomical variant only - No, they are not
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{Arteries of elastic type are mainly: (i.e., "Which arteries are arteries of elastic type?") - The biggest arterioles, usually without anatomical name - In our species, all arteries are of elastic type - Middle-sized arteries, e.g. radial artery + The biggest arteries, mainly aorta
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{'Arteries of muscular type are mainly: - The biggest arterioles, usually without anatomical name - In our species, all arteries are of muscular type + Middle-sized arteries, e.g. radial artery - The biggest arteries, mainly aorta
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{Of which cells is composed conducting system of the heart? - Cells which are similar to cardiac muscle cells, but they originated in the neural crest - Cells which are similar to bipolar neurons, but they are of mesenchymal origin + Modified cardiac muscle cells - Modified smooth muscle cells
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{Do cardiac muscle cells produce some hormones? + Yes, for example the atrial natriuretic factor (ANF) - Yes, for example the erythropoietin (EPO) - Yes, for example the trombopoietin (TPO) - No, they don't produce hormones
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{Does tunica adventitia of big veins contain elastic fibers? + Yes, it does - No, it does not - Yes, it does, but in cavae veins only - Yes, it does, but as an anatomical variant only
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{How big are cells of conducting system of the heart? - They are of roughly of the same size in all parts of the conducting system + It depends on the site, the biggest cells are in the Purkyně's fibers - It depends on the site, the biggest cells are in the sinoatrial node - It depends on the site, the biggest cells are in the bundle of His
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{How does look the basement membrane of lymphatic capillaries? - It is continuous and well developed - It is continuous, but very thin + It is discontinouos - It does not exist
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{How many elastic membranes are in the tunica media of aorta? - Usually around 10 + Usually around 50 - Usually around 100 - Usually around 500
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{How to describe the shape of the cardiac muscle cell? + Cardiac muscle cell is of cylindrical shape, but can have branches - Cardiac muscle cell is a fiber with several nuclei - Cardiac muscle cell is irregular star-shaped - Cardiac muscle cell is spindle-shaped
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{It is possible that damaged myocardium of adult fully regenerates (undergoes restitutio ad integrum)? - Yes, it is possible - Yes, it is possible, but only myocardium of ventricles has this ability - Yes, it is possible, but only some people have this ability + No, it is not possible
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{Main cells of tunica media of majority of vessels are: - Longitudinally arranged striated muscle cells - Longitudinally arranged smooth muscle cells - Circularly arranged striated muscle cells + Circularly arranged smooth muscle cells
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{Which is main tissue of the cardiac skeleton? - There is no structure called "cardiac skeleton" + Dense connective tissue - Hyaline cartilage - Fibrocartilage
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{The innermost layer of the heart is called: + Endocardium - Pericardium - Epicardium - Myocardium
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{What is an angiongenesis? - Budding if new vessels from existing vessels under pathological condition only + Budding of new vessels from existing vessels during development or adulthood - Abnormal differentiation of new vessels during the embryonic development - Differentiation of new vessels durign embryonic development
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{What does it means that endothelial cells have ability to perform transcytosis? (i.e., "What is a transcytosis?") - Organelles of endothelial cells are shared, especially mitochondria are shared intensively and travel from a cell to a cell - They allow to white blood cells cross to leave the blood not only inbetween endothelial cells, but alsou through the cells + They transport compounds throuhg the cytoplasm from one side of the cell to the second side inside endocytic vesilces - Molecular pattern on the blood surface is dynamic and depends strongly on processes in deeper layers of the vessel
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{What is main function of carotid sinus? - Receptor of the oxygen partial pressure of oxygen - Receptor of the carbon dioxide partial pressure + Receptor of the blood pressure - Receptor of the blood pH
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{What are Weibel-Palade bodies? - They are granules in cells in the subendothelial connective tissue containing von Wilebrand factor (protein of blood clotting cascade) and P-selectine - They are granules in cells in the subendothelial connective tissue containing enzymes and substrates for production of nitric oxide (NO) + They are granules in endothelial cells containing von Wilebrand factor (protein of blood clotting cascade) and P-selectine - They are granules in endothelial cells containing enzymes and substrates for production of nitric oxide (NO)
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{What is a vaskulogenesis? - Budding if new vessels from existing vessels under pathological condition only - Budding of new vessels from existing vessels during development or adulthood - Abnormal differentiation of new vessels during the embryonic development + Differentiation of new vessels durign embryonic development
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{Where do we find pericytes? + In the wall of capillaries - In the wall of all vessels - In the wall of arteries - In the wall of veins
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{Where takes place the membrana elastica interna? - On border between tunica media and tunica adventitia of arteries - On border between tunica media and tunica adventitia of veins + On border between tunica intima and tunica media of arteries - On border between tunica intima and tunica media of veins
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{Which is common diameter of the capillary? + 5 to 20 µm - 20 to 50 µm - 50 to 100 µm - 100 to 200 µm
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{Which of following statements describes endothelial cell the most accurate? + Flat, polygonal, elongated in the direction of blood flow - Irregular, prone to overlap other endothelial cells - Cuboidal, regular, with radial symmetry - Flat, with long processes
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{Which organ contains capillaries with continuous endothelium? - Small intestine + Skeletal muscle - Thyroid gland - Kidney
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{Which organ contains capillaries with fenestrated endothelium? - Connective tissue + Chorioid plexus - Brain - Lung
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{Which organ contains sinusoids (sinusoidal capillaries)? - Large intestine - Uterine muscle + Bone marrow - Pancreas
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{Which structure is on the border between tunica media and tunica adventitia in brachial artery? - Membrana fibromuscularis interna - Membrana fibromuscularis externa + Membrana elastica externa - Membrana elastica interna
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{Which type of capillaries has discontinuous basement membrane? - Sinusoids (sinusoidal capillaries) and fenestrated capillaries - All capillaries have discontinuous basement membrane - Capillaries with fenestrated endothelium + Sinusoids (sinusoidal capillaries)
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