. Action potential B, phase 0 = T wave B. Action potential A, phase 0 = QRS complex C. Action potential A, phase 3 = S-wave D. Action potential B, phase 0 = PQ interval E. Action potential A, phase 4 = ST segment

Q: Within the T-P interval of the EKG... a. The 2nd heart sound is heard b. the semilunar valves are…

A: a. The 2nd heart sound is heard

Q: Parasympathetic stimulation of the sinoatrial node ______.   A is necessary; without it the heart…

A: Parasympathetic system of the body is responsible for the body's rest and digestion response when…

Q: A cardiologist observed an cntargc4 QRS wave in the ECU of a patient. What does it indicate?

A: ECG or electrocardiogram is a diagram or graph of the electrical activity of heart that is produced…

Q: some one with tachyarrhythmia would be expected to show an abnormally  A. Larger P-R interval  B.…

A: Tachyarrhythmia also called tachycardia is a condition in which heart beat rate exceeds the normal…

Q: a hypothetical disorder where a patient did not have an arterioventricular- bundle. As a result, the…

A: AV bundle also known as bundle of His. This is the only site where action potential can move from…

Q: A. intense right axis deviation and a slightly prolonged QRS complex. B. left axis deviation caused…

A: Electrocardiogram, also known as ECK or EKG records the electrical activity of the heart. It's a…

Q: In supraventricular tachycardia, the rhythm may originate from any of the following, except SA Node…

A: Arrhythmias are irregular rhythms that do not obey the typical sequence of events. They are divided…

Q: Which of the following is most likely to be present on the resting EKG recording of a patient with…

A: AV node is among the initial areas where conduction abnormalities can be detected on an ECG. Blocks…

Q: Which condition would cause a diastolic murmur?   A regurgitation of blood through an incompetent…

A: Diastolic murmur refers to the sound that occurs for some period during diastole. The diastolic…

Q: Fill in the blank:  The large fibers on the distal side of the A-V node make up the…

A: A-V node: It is the connecting system between upper chamber and lower chamber of the heart that acts…

Q: A patient is taking a drug that blocks beta-adrenergic receptors. What changes in cardiac function…

A: A drug is a chemical substance that produces a biological effect. When the drug is taken by…

Q: The patient's ECG indicates that _____.   A action potentials are passing from his atria into his…

A: Electrocardiography -- The process by which electrocardiogram is done defined as electrocardiography…

Q: discuss how tachycardia is related to the nervous system​

A: When heart beat is more than 100 beats per minute then this condition is called tachycardia. When…

Q: ECG

A: Absence of P waves with a flat baseline is an indication of fine atrial fibrillation.

Q: The first heart sound is heard as the ECG records the end of the ______.   A P wave   B T-P…

A: An electrocardiogram (ECG or EKG) records the electrical signal from your heart to examine for…

Q: What is a pulse? List the locations on the body where thepulse can easily be detected.

A: Vital signs are the four medical signs that evaluate the functioning of the body whether it is…

Q: In Autorhythmic cells, Sympathetic control of heart rate leads to a(n)

A: Answer: Autorhythmic cells = These are the cells acts as pacemaker to initiate the cardiac cycle and…

Q: If an EKG shows regular P waves, but is missing regular QRS complexes, it means that…

A: EKG or ECG is known as Electrocardiogram. It is used to check the functionality of heart.

Q: The T wave represents: a. Depolarization of the ventricles b. Repolarization of the atria c.…

A: ECG (Electrocardiogram) can be outlined as the graph which represents the electrical activity of the…

Q: A classmate who has been standing still for several hours working on a laboratory experiment…

A: Working on long laboratory experiments can result in fainting and this is very common.

Q: While recording the ECG pattern, the subject must be still. Any talking, laughing or moving distorts…

A: An electrocardiogram (ECG) is the simplest test to diagnose the disorders of the heart. It measures…

Q: What effect does sympathetic stimulation have on stroke volume if thevenous return remains constant?…

A: Most blood vessels, including those in the skin, the digestive tract, and the kidneys, constrict…

Q: In a normal EKG, in the pre- cordial leads (V leads) where should the normal 2 wave transition coour

A: One of the important steps in decoding associate electrocardiogram (EKG) is deciding the electrical…

Q: If the PSYN is activated, how will that affect an ECG? O A. The P waves of subsequent cycles will…

A: The SA (sinoatrial node) is the pacemaker of the heart and it has the important function of sending…

Q: The onset of the QRS complex of the ECG is most closely related to which of the following cardiac…

A: Isovolumetric ventricular contraction - This phase marks the beginning of systole and starts with…

Q: Elaborate about the AV node why and how it decreases the action potential

A: Introduction:-  Atrioventricular node is a structure present in the heart. If functions to delays…

Q: Anytime there is a sustained change in blood pressure (longer than 2-5 minutes) ______ is…

A: Carotid sinus consist of various baroreceptors  Carotid sinus baroreceptors are innervated by sinus…

Q: What does the QRS complex in the EKG represent and what occurs immediately after? Select one: O a.…

A: The human heart is situated in the middle of the thoracic cavity in a space called the mediastinum.…

Q: Even though it is trivial that Beta Blockers might have negative inotropic effect on the heart, but…

A: Beta-blockers act on the Beta 1 receptors which are located in the heart and it slows down the…

Q: An electrocardiogram (ECG) measures the ____.   A difference in electrical potential between two…

A: An electrocardiogram or ECG is a simple non-invasive test conducted on the patient to check his /…

Q: Vern, suffering from cardiac arrhythmias, is brought into the emergency room of a hospital. The…

A: R-R interval or space between 2 R wave in the ECG helps to determine the heart rate. As RR interval…

Q: Which statement about the normal electrocardiogram (ECG) tracing is false?   A The T wave…

A: The heart is depolarized at every beat to trigger its contraction. This electrical activity is…

Q: A atria and ventricles would both be relaxed   B atria and ventricles would both be contracting…

A: ELECTROCARDIOGRAM It is a graph which records the electrical signal from the heart to check for…

Q: B. In a standard ECG, what do the following represent: а. Р- b. QRS= C. T= d. U= e. The # of QRS…

A: ECG interpratation involves accessment of waves and intervals on ECG curves. The waves obtained on…

Q: Why might the increase in heart rate associated with a vigorous exercise program be the cause of his…

A: Cardiac muscles are the muscles that are present in the heart and are principally accountable for…

Q: In electrocardiography (=EKG, =ECG), what causes a P wave?______   A. atrial repolarization   B.…

A: EKG /ECG :  Electrocardiography is process of producing electrocardiogram. It is a graph of voltage…

Q: Repolarization of the ventricles typically _______.   A begins at the end of the T-wave and…

A: Electrocardiograms also called ECGs or EKGs is a simple diagnostic machine that checks the…