CMSRN CV Study Guide 2023Top-Rated

Arteries move oxygenated blood from the heart to where? - To the rest of the body The aorta takes oxygenated blood from what part of the heart? - The left ventricle Capillary beds drain through the? - Venules Non oxygenated blood circulates back to what part of the heart? - The right atrium Veins help to? - Return blood back to the heart Blood is pumped to the lungs through which artery? - The pulmonary artery Pulmonary arteries help do what to the blood? - Oxygenate the blood Oxygenated blood moves through the pulmonary artery to what part of the heart? - Left atrium & then aorta Proper circulation is vital to prevent what 3 things? - Problems with BP, tissue perfusion, or HF Arteries have what in them to prevent BP changes? - Thick middle layer Inner part elastic fibers of artery to facilitate blood flow - Tunica intima Middle smooth muscle fibers and connective tissues of artery are known as what? - Tunica media Flexible exterior of the artery is known as? - Tunica externa The 3 types of arteries are? - Elastic, muscular, & arterioles Elastic arteries take blood from where? - Directly from the heart 2 Examples of elastic arteries are - The aorta & pulmonary arteries Muscular arteries distribute blood to where? - Various parts of the body that have smooth muscle to help them relax or contract 2 Examples of muscular arteries are - Coronary and femoral artery Arterioles - Small branches of arteries that move blood to the capillaries Example of arterioles - Tunica media Veins - Blood vessels that move blood to the heart 4 types of veins - Pulmonary, systemic, superficial, & deep Pulmonary veins - Move oxygenated blood from lungs to left atrium Systemic veins - Move deoxygenated blood to right atrium Superficial veins - Near skins surface Deep veins - In muscle tissue near arteries like the coronary vein In case of malfunction, which type of vein may be difficult to treat? - Deep veins Aorta - Two separate arteries that move from left ventricle through diaphragm and into pelvis/abdomen Aorta is responsible for? - Circulating blood to legs and lower trunk of the body Internal carotid artery is responsible for? - Delivering blood to the brain The internal carotid artery moves into the cranium and divides into series of arteries known as what? - Circle of Willis Circle of Willis has what 4 main arteries? - Anterior cerebral, middle cerebral, multiple posterior, and basilar arteries. Anterior cerebral artery - Links to anterior communication artery at the top Middle cerebral artery - Corresponds with anterior choroidal artery Multiple posterior arteries - Allow blood to move to heart Basilar artery - Appears at the bottom to facilitate blood flow Spleen - Filters and removes old RBCs, while producing WBCs Can the spleen be removed if necessary? - Yes 3 main heart layers are? - Pericardium, Myocardium, and Endocardium Pericardium - Outside protective layer/sac of the heart Myocardium - Middle largest layers of the heart that requires oxygen to function