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🛍️ Shopee - 🛍️ MOD 7 SGD 01: Anatomy of the Heart, Cardiac Skeleton, & Conduction System [page 218] - 🛍️ Histology [page 302] - 🛍️ Physiology [page 303]

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Published	01/14/2024	A 54 y.o. male is admitted due to difficulty breathing. Imaging and echocardiography revealed aortic valve stenosis with left ventricular enlargem…
Published	01/14/2024	A 55 y.o. company executive is to undergo a coronary bypass procedure. The artery of primary concern is the vessel that supplies much of the left …
Published	01/14/2024	During an anatomy class dissection, a 1st yr medical student is able to insert his index finger into the transverse pericardial sinus. This maneuv…
Published	01/14/2024	Relative to its position with the root of the lung in the mediastinum, the vagus nerve lies: A. Superiorly B. Inferiorly C. Posteriorly D.An…
Published	01/14/2024	Surface of the heart formed by both ventricles: A. Apex B. Base C. Sternocostal surface  D. Diaphragmatic surface
Published	01/14/2024	The posterior line of reflection of the parietal pericardium with the visceral pericardium occurs at : A. Transverse pericardial sinus B. Roo…
Published	01/14/2024	What subdivision of the mediastinum contains the arch of aorta, tracheal bifurcation and arch of the azygos vein? A. Superior mediastinum  …
Published	01/14/2024	What vein accompanies the posterior descending branch of the right coronary artery? A. Small cardiac vein B. Middle cardiac vein C. Coronary…
Published	01/14/2024	Which of the following describes the anatomic location of the tricuspid valve? A. Left half of the sternum opposite 4th costal cartilage B. M…
Published	01/14/2024	Which of the following structures traverses both the superior mediastinum and the posterior mediastinum? A.Aorta and esophagus  B. Branche…
Published	01/14/2024	Connective tissue type surrounding the valves and extending to the cusps: A. Dense elastic B. Dense irregular C. Areolar D. Dense f…
Published	01/14/2024	The specialized cardiac cell found in both the SAN and AVN: A. Transitional B. Purkinje C. Ordinary cardiac D.Pacemaker
Published	01/14/2024	Which of the following is a histologic feature of the endocardium? A. P cells in subendocardium B. Purkinje cells in the middle part C. …
Published	01/14/2024	Which of the following is true of the Purkinje fibers?  A. Diminished amount of fibrils  B. Reduced amount of organelles C. P…
Published	01/14/2024	Which of the following tissues is present in both the endocardium and myocardium? A. adipose B. simple squamous epithelium C. loose connectiv…
Published	01/14/2024	According to Boron the funny current is stimulated when: A.K+ efflux is diminished B.Membrane is hyperpolarized from a previous action potent…
Published	01/14/2024	According to Guyton the upstroke phase of the SRAP is due to: A. Na+ influx and Ca++ influx B.Na+ influx C.Na+ influx,Ca++ influx and K+ …
Published	01/14/2024	Alexa counted 18 small squares between two successive R waves and then computed for the heart rate. It should be _______ beats per minute. A.78 B.…
Published	01/14/2024	Compared to Fast response action potential (FRAP), the slow response action potential (SRAP) has aA.Less negative resting potential B.Faster v…
Published	01/14/2024	Emilia counted 2.5 squares from the onset of the R wave to the end of the S wave. She computed the QRS interval to be: A.O.125 sec B. 1.0 sec …
Published	01/14/2024	If the initial QRS vector is at (+)98 degrees, a Q wave will be seen in lead/s: A. aVL  B. aVR C. I D. I, aVL, and aVR  …
Published	01/14/2024	If the left atrium is enlarged, which of the following ECG intervals would be prolonged? A.QT B.RRC.PR D.QRS
Published	01/14/2024	If the mean P vector is at (+)68 degrees, the P wave is tallest in lead: A. I B.aVF C.II D.aVL
Published	01/14/2024	Impulse conduction is fastest in the: A. Internodal tracts B. Terminal Purkinje network C. Bundle of His D.Bundle branches
Published	01/14/2024	The discharge rate of nodal cells can be decreased by: A. Making the initial resting potential less negative B. Increasing the slope of depol…
Published	01/14/2024	The resting membrane potential in atrial and ventricular muscles is primarily due to: A. Na+ influx  B. K+ influx  C. K+ eff…
Published	01/14/2024	This ECG configuration measures ventricular depolarization time. A. QRS complex  B. RR interval C. QT interval D.QRS interv…
Published	01/14/2024	Which of the following associations between chest leads and locations of their positive electrodes is correct? A. V1 – 4th intercostal space,…
Published	01/14/2024	Which of the following ventricular components would be repolarized first? A. Antero-septal region B. Postero-basal region of the left ventricl…
Published	01/14/2024	Which of these associations between the phases of fast response action potential and their primary causes is correct (according to Boron)? A.…
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