PNB 2265 Exam 1 Questions and Answers 2024/2025 with complete solution

PNB 2265 Exam 1 Questions and Answers 2024/2025 with complete solution What is the excitation sequence? - answer1. SA node 2. Internode pathways 3. AV node 4. Bundle of His 5. Bundle branches 6. Purkinje fibers What is the right semi-lunar valve called? - answerPulmonary valve Is the serous or fibrous layer on the inside? - answerSerous What is the left semi-lunar valve called? - answerAortic valve What is the term for a hemoglobin mutation? - answerThalassemia What does CADET stand for? - answerCO2, acid, DPG, exercise, and temp increase What wave of the EKG represents atrial depolarization? - answerP wave What happens when the Hb-O2 saturation curve shifts right? - answerBinding affinity decreases causing O2 to be released easier What is the name of the effect where carbon dioxide binding facilitates the release of oxygen (1 bound at a time)? - answerThe Bohr Effect What happens when the Hb-O2 saturation curve shifts left? - answerBinding affinity increases causing O2 to bind easier What does FIBB stand for? - answerFetal hb, inactivity, basic, and brr What inhibits thrombin (prevention)? - answerAnticoagulant What is the term for destruction of a red blood cell? - answerHemolysis What pathway is activated directly by the damaged vessel? - answerExtrinsic What pathway is activated by collagen? - answerIntrinsic What dissolves thrombus (break down)? - answerFibrinolysis What happens during erythropoiesis? - answerGene expression changes since the nucleus and all other organelles are ejected Which wave of an EKG represents ventricle depolarization and atrial repolarization? - answerQRS wave What monomer CAN'T cross membranes? - answerIgM What monomer CAN cross membranes? - answerIgG What is the name of the effect where deoxygenation promotes carbon dioxide binding to hemoglobin (when no oxygen is bound)? - answerThe Haldane Effect What monomer is anti-A or anti-B? - answerIgM What is the name of the disease where there are too many red blood cells due to bone marrow abnormalities? - answerPolycythemia What is thrombocytopenia? - answerToo few platelets What is thrombocytosis? - answerToo many plat