Nodal flow - Studienführer, Klassennotizen & Zusammenfassungen

Biology 235 Final Exam Questions With 100% Correct Answers 2024/2025 What is afterload with regards to artery anatomy? - answerElastic arteries - stretch and recoil during pressure pulses Amount of elasticity determines force of afterload How do arterioles affect afterload? - answerProvide vascular resistance and regulate regional blood flow via sympathetic vasomotor tone and pre-capillary sphincters What 4 mechanisms regulate blood pressure in the body? - answerBaroreflex Chemoreceptor ...

Biology 235 Final Exam Questions With 100% Correct Answers 2024/2025 What is afterload with regards to artery anatomy? - answerElastic arteries - stretch and recoil during pressure pulses Amount of elasticity determines force of afterload How do arterioles affect afterload? - answerProvide vascular resistance and regulate regional blood flow via sympathetic vasomotor tone and pre-capillary sphincters What 4 mechanisms regulate blood pressure in the body? - answerBaroreflex Chemoreceptor ...

Chapter 11 - Which of the following structures is the primary pacemaker of the heart? a. Ventricular tissue c. Sinoatrial node b. Atrioventricular node d. Purkinje fibers - ANS: C With an intrinsic rate of 60 to 100 beats/min, the sinoatrial node is the primary pacemaker in a healthy heart. The atrioventricular node beats 40 to 60 beats/min. Ventricular tissue must have an electrical impulse to contract. Purkinje fibers beat 15 to 40 beats/min 3. Why do many patients with very hi...

CSCT Exam With 100% Correct And Verified Answers 2024 Counterclockwise - Correct Answer-Early Transition Rotates Which Direction Clockwise - Correct Answer-Late Transition Rotates Which Direction Transmit impulses form the right atrium to the left atrium - Correct Answer-Bachmann's Bundle Drains venous blood from the thoracic wall to the superior vena cava - Correct Answer-Azygous Veins Embryological cavity where the heart migrates into during development - Correct Answer-Celomic C...

Comprehensive CRNA Interview Review Norepinephrine Mechanism of Action (MOA) - answerA1, A2, B1 agonist. Primary agent used in distributive shock because it's ability to recruit venous volume and augment preload, while increasing arterial tone, and increasing cardiac output. Alpha one causing peripheral smooth muscle contraction. (low dose venous, high dose venous and arterial). Alpha 2 adrenoreceptor agonism actually antagonizes the release of norepinephrine in the CNS, but these rece...

Blood from the UE >> ______. Blood from the LE >> ______. Blood from the lumbars >> _____ >> _______. - correct answer SVC, IVC, azygous vein, SVC 80% of blood __________ to the right ventricle. The remaining 20% needs _______ to flow to the RV. - correct answer Passively flows (via gravity) Atrial contraction Impulse for atrial contraction starts at the ________ in the __...

Intrinsic rates - ANSWER-SA node - 60 - 100 bpm AV junction - 40 - 60 bpm Purkinje network - 20 - 40 bpm Lidocaine doses - ANSWER-1-1.5 mg/kg, second dose 0.5-0.75 mg/kg Unstable VT tx - ANSWER-Should be treated with synchronized cardioversion Hypotension, decreased LOC, shock, chest pain Stable VT tx - ANSWER-IV/IO Adenosine 6mg; 12mg (followed by rapid saline flush) If ineffective, procainamide (20-50mg/min or amiodarone (150mg IV/10min) Consider antiarrhythmic infusion Defi...

anatomy and physiology: colon function  :-- secretes K and reabsorbs Na and water (mostly in R colon and cecum) anatomy and physiology: layers  :-- 4 ... mucosa (columnar epithelium), submucosa, muscularis propria, serosa (in to out) anatomy and physiology: describe muscularis mucosa vs muscularis propria  :-- musc mucosa = small interwoven inner muscle layer just below mucosa but above basement membrane ... musc propria = circular layer of muscle anatomy and physiology: what pa...

What are the borders of the heart? Right - RA Bottom - RV and LV near apex Left - LV and LA appendage Top - RA and LA + blood vessels What is the diameter of the heart in relation to the intra-thoracic chest on CXR? Should be <50% of intrathoracic chest If >50%, looked at as cardiomegaly Systole = _____ Diastole = _____ Contraction (ejection) Relaxation (Filling) What is cardiac output? The amount ejected by each ventricle in 1 minute CO = HR x SV What is the typical cardiac...

Cardiac protective layer sac that contains pericardial fluid? - ANS Pericardium Outermost layer flattened by epithelial cells and connective tissue? Serves as a lubricated outer covering. - ANS Epicardium Middle and thickest layer is called the cardiac muscle. Provides contractions that eject blood from the heart chamber. - ANS Myocardium Innermost layer flattened by epithelial cells and connective tissue. Serves as the protective inner lining of the chambers....