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IBHRE CEPS Anatomy and Physiology Questions and Correct Answers the Latest Update $14.09   Add to cart

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IBHRE CEPS Anatomy and Physiology Questions and Correct Answers the Latest Update

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  • Course
  • IBHRE CEPS
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  • IBHRE CEPS

Pericardium Protective sac surrounding heart Fibrous pericardium and Serous Pericardium Two layers of the pericardium Fibrous Pericardium Layer of pericardium, tough outer sheath, adheres to the sternum and diaphragm to stabilize heart Serous Pericardium Layer of pericardium, consistin...

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  • November 7, 2024
  • 28
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • IBHRE CEPS
  • IBHRE CEPS
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IBHRE CEPS Anatomy and
Physiology Questions and Correct
Answers the Latest Update
Pericardium


✓ Protective sac surrounding heart



Fibrous pericardium and Serous Pericardium


✓ Two layers of the pericardium



Fibrous Pericardium


✓ Layer of pericardium, tough outer sheath, adheres to the sternum and diaphragm to
stabilize heart



Serous Pericardium


✓ Layer of pericardium, consisting of two fluid secreting layers (one lining the outer
layer, the other the epicardium)



Aortic and Pulmonary


✓ Two semilunar valves



Coronary Sulcus



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✓ Shallow groove that encircles heart, supports cardiac vessels, and separates heart
chambers on surface



Right coronary artery


✓ Consists of marginal artery and posterior descending artery
✓ - supplies RA, most of the RV, and diaphragm side of LV with blood



Marginal artery


✓ Part of RCA that runs along AV groove from ostium in anterior aorta around RV



Posterior descending artery


✓ Part of RCA that runs between RV and LV inferiorly



LCA


✓ Consists of the left anterior descending artery and circumflex
✓ - supplies LA, LV, part of RV, most of interventricular septum with blood



Left anterior descending artery


✓ Part of LCA that runs along the front of the heart



Circumflex artery


✓ Part of LCA that runs between LA and LV



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Great cardiac vein, Middle cardiac vein, and posterolateral vein


✓ Largest cardiac veins



Vein of Marshall


✓ Oblique vein of the LA, ends near the opening of the great cardiac vein



Myocytes


✓ muscle cells in myocardium, initiate and conduct electrical impulses
✓ - branch and interlock, separated by discs
✓ - shorten when stimulated
✓ - each has nucleus and myofibrils



Myofibriles


✓ Parallel strands of tissue, subdivided into sarcomeres



Sarcomere


✓ Basic contractile unit of the heart
✓ - stimulated: release calcium from sarcoplasmic reticulum, actin and myosin slide
over each other to shorten



Apex


✓ Heart contraction is a wringing twisting motion of the myocardium that starts at the
___.


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