Assertion `:` Though AV node generates impulses, it is still not called as the pacemaker of heart. Reason `:` The rythmicity of impulse production is

Assertion `:` Though AV node generates impulses, it is still not called as the pacemaker of heart. Reason `:` The rythmicity of impulse production is
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Assertion `:` Though AV node generates impulses, it is still not called as the pacemaker of heart. ... . D. If both Assertion & Reason are false.
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Related questions

The secondary pacemaker of the heart is known as the: a) AV node b) SA node c) Purkinje Bundle d) None of the above

Description : The secondary pacemaker of the heart is known as the: a) AV node b) SA node c) Purkinje Bundle d) None of the above

Last Answer : ANSWER: A -- AV node

What structures transmit the heart impulse from the av node to the ventricle?

Description : What structures transmit the heart impulse from the av node to the ventricle?

Last Answer : Bundle of Hisatrioventicular bundle (bundle of his), right and left bundle bramches and the purkinge conducition fibers

The correct route through which pulse-making impulse travels in the heart is (a) SA node → Purkinje fibres → bundle of His → AV node → heart muscles (b) SA node → AV node → bundle of His → Purkinje fibres → heart muscles(c) AV node → bundle of His → SA node → Purkinje fibres → heart muscles (d) AV node → SA node → Purkinje fibres → bundle of His → heart muscles.

Description : The correct route through which pulse-making impulse travels in the heart is (a) SA node → Purkinje fibres → bundle of His → AV node → heart muscles (b) SA node → AV node → bundle of His → Purkinje ... fibres → heart muscles (d) AV node → SA node → Purkinje fibres → bundle of His → heart muscles.

Last Answer : (b) SA node → AV node → bundle of His → Purkinje fibres → heart muscles

Impulse of heart beat originates from (a) SA node (b) AV node (c) vagus nerve (d) cardiac nerve

Description : Impulse of heart beat originates from (a) SA node (b) AV node (c) vagus nerve (d) cardiac nerve

Last Answer : (a) SA node

Which of the following terms is used to describe a tachycardia characterized by abrupt onset, abrupt cessation, and a QRS of normal duration? a) Paroxysmal atrial tachycardia PAT is often caused by a conduction problem in the AV node and is now called AV nodal reentry tachycardia. b) Sinus tachycardia Sinus tachycardia occurs when the sinus node regularly creates an impulse at a faster-than-normal rate. c) Atrial flutter Atrial flutter occurs in the atrium and creates an atrial rate between 250-400 times per minute. d) Atrial fibrillation Atrial fibrillation causes a rapid, disorganized, and uncoordinated twitching of atrial musculature.

Description : Which of the following terms is used to describe a tachycardia characterized by abrupt onset, abrupt cessation, and a QRS of normal duration? a) Paroxysmal atrial tachycardia PAT ... fibrillation Atrial fibrillation causes a rapid, disorganized, and uncoordinated twitching of atrial musculature.

Last Answer : a) Paroxysmal atrial tachycardia PAT is often caused by a conduction problem in the AV node and is now called AV nodal reentry tachycardia.

Which of the following ECG waveforms characterizes conduction of an electrical impulse through the left ventricle? a) QRS complex The QRS complex represents ventricular depolarization b) P wave The P wave is an ECG characteristic reflecting conduction of an electrical impulse through the atria. c) PR interval The PR interval is a component of an ECG tracing reflecting conduction of an electrical impulse through the AV node. d) QT interval The QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Description : Which of the following ECG waveforms characterizes conduction of an electrical impulse through the left ventricle? a) QRS complex The QRS complex represents ventricular depolarization b) P ... QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Last Answer : a) QRS complex The QRS complex represents ventricular depolarization

Assertion `:` The sino-atrial node (SAN) is called the pacemaker. Reason `:` SAN is responsible for initiating and maintaining the rhythmic contractil

Description : Assertion `:` The sino-atrial node (SAN) is called the pacemaker. Reason `:` SAN is responsible for initiating and maintaining the rhythmic contractil

Last Answer : Assertion `:` The sino-atrial node (SAN) is called the pacemaker. Reason `:` SAN is responsible ... False. D. If both Assertion & Reason are false.

Rate of heart beat is determined by (a) Purkinje fibres (b) papillary muscles (c) AV node (d) SA node.

Description : Rate of heart beat is determined by (a) Purkinje fibres (b) papillary muscles (c) AV node (d) SA node.

Last Answer : (d) SA node.

Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when(a) AV node receives signal from SA node (b) AV valves open up (c) Ventricular walls vibrate due to gushing in of blood from atria (d) Semilunar valves close down after the blood flows into vessels from ventricles.

Description : Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when (a) AV node receives signal from SA node (b) AV valves open up (c) Ventricular ... blood from atria (d) Semilunar valves close down after the blood flows into vessels from ventricles.

Last Answer : (d) Semilunar valves close down after the blood flows into vessels from ventricles

Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus r

Description : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus r

Last Answer : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : ... D. If both Assertion and Reason are false.

The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of (a) atrioventricular bundle (b) Purkinje system (c) sinoatrial node (d) atrioventricular node.

Description : The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of (a) atrioventricular bundle (b) Purkinje system (c) sinoatrial node (d) atrioventricular node.

Last Answer : (b) Purkinje system

A 16-year-old-girl is found to have paroxysmal attacks of rapid heart rate. The antiarrhythmic of choice in most cases of acute AV nodal tachycardia is (a) Adenosine (b) Amiodarone (c) Flecainide (d) Propranolol (e) Quinidine

Description : A 16-year-old-girl is found to have paroxysmal attacks of rapid heart rate. The antiarrhythmic of choice in most cases of acute AV nodal tachycardia is (a) Adenosine (b) Amiodarone (c) Flecainide (d) Propranolol (e) Quinidine

Last Answer : Ans: A

Heart pacemaker?

Description : Heart pacemaker?

Last Answer : DefinitionA pacemaker is a small, battery-operated device that senses when your heart is beating irregularly or too slowly. It sends a signal to your heart that makes your heart beat at the correct pace.Alternative ... takes about 1 hour. You will be given a sedative to help you relax. You will b

Procainamide differs from quinidine in the following respect (a) It does not cause paradoxical tachycardia (b) It has no alfa adrenergic blocking activity (c) It has little antivagal action (d) Both (b) and (c) Ans: D 68. In heart, potassium channels determine (a) Pacemaker function (b) Resting potential (c) Action potential duration (d) All of the above

Description : Procainamide differs from quinidine in the following respect (a) It does not cause paradoxical tachycardia (b) It has no alfa adrenergic blocking activity (c) It has little antivagal action (d) Both (b ... a) Pacemaker function (b) Resting potential (c) Action potential duration (d) All of the above

Last Answer : Ans: D

What is the function of the heart Pacemaker? A. It decreases the heart beat B. It regulates the heart beat C. It increases the heart beat D. It accelerates blood supply to the heart

Description : What is the function of the heart Pacemaker? A. It decreases the heart beat B. It regulates the heart beat C. It increases the heart beat D. It accelerates blood supply to the heart

Last Answer : ANSWER: B

Medical What is the function of the heart Pacemaker? A. It decreases the heart beat B. It regulates the heart beat C. It increases the heart beat D. It accelerates blood supply to the heart

Description : Medical What is the function of the heart Pacemaker? A. It decreases the heart beat B. It regulates the heart beat C. It increases the heart beat D. It accelerates blood supply to the heart

Last Answer : ANSWER: B

The functions of pacemaker is - (1) Regulation of urine formation (2) Regulation of digestion (3) Initiation of heart beat (4) Initiation of respiration

Description : The functions of pacemaker is - (1) Regulation of urine formation (2) Regulation of digestion (3) Initiation of heart beat (4) Initiation of respiration

Last Answer : (3) Initiation of heart beat Explanation: A pacemaker is a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to initiate and regulate the beating of the heart ... is not fast enough, or there is a block in the heart's electrical conduction system.

The effect of noradrenaline on the heart include: a. tachycardiac b. increased duration of the cardiac action potential c. decreased potassium conductance of the membranes of pacemaker cells d. increased strength of cardiac contraction

Description : The effect of noradrenaline on the heart include: a. tachycardiac b. increased duration of the cardiac action potential c. decreased potassium conductance of the membranes of pacemaker cells d. increased strength of cardiac contraction

Last Answer : increased strength of cardiac contraction

If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non- functional, what will be the immediate effect? (a) The flow of blood into the aorta will be slowed down. (b) The ‘pacemaker’ will stop working. (c) The blood will tend to flow back into the left atrium. (d) The flow of blood into the pulmonary artery will be reduced.

Description : If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non- functional, what will be the immediate effect? (a) The flow of blood into the aorta will be slowed ... back into the left atrium. (d) The flow of blood into the pulmonary artery will be reduced.

Last Answer : (d) The flow of blood into the pulmonary artery will be reduced.

The functions of pacemaker is (1) Regulation of urine formation (2) Regulation of digestion (3) Initiation of heart beat (4) Initiation of respiration

Description : The functions of pacemaker is (1) Regulation of urine formation (2) Regulation of digestion (3) Initiation of heart beat (4) Initiation of respiration 

Last Answer : Initiation of heart beat

Assertion: Many plants are propagated vegetatively even though they bear seeds. Reason: Potatoes multiply by tubers, apple by cutting etc.

Description : Assertion: Many plants are propagated vegetatively even though they bear seeds. Reason: Potatoes multiply by tubers, apple by cutting etc.

Last Answer : Assertion: Many plants are propagated vegetatively even though they bear seeds. Reason: Potatoes ... both the assertion and reason are false.

Choose the correct pathway of the transmission of impulses in the heart beat `:`

Description : Choose the correct pathway of the transmission of impulses in the heart beat `:`

Last Answer : Choose the correct pathway of the transmission of impulses in the heart beat `:` A. Av node `rarr` ... of His `rarr ` SA node `rarr ` Purkinje fibres

Prosthesis that is designed to generate repetitive electrical impulses to the heart, is known as

Description : Prosthesis that is designed to generate repetitive electrical impulses to the heart, is known as

Last Answer : Prosthesis that is designed to generate repetitive electrical impulses to the heart, is known as A. ... -aortic balloon pump D. Heart- lung machine

The action of quinidine differs from that of digitalis in (a) Decreasing irritability of cardiac muscle (b) Preventing passage of impulses to the ventricle (c) Increasing irritability of heart muscle (d) Reducing conductivity (e) None of the above

Description : The action of quinidine differs from that of digitalis in (a) Decreasing irritability of cardiac muscle (b) Preventing passage of impulses to the ventricle (c) Increasing irritability of heart muscle (d) Reducing conductivity (e) None of the above

Last Answer : Ans: A

Impulses from the pace -maker cause the (a) ventricles to contract (b) auricles to contract (c) both the ventricle and auricle to contract (d) heart to relax

Description : Impulses from the pace -maker cause the (a) ventricles to contract (b) auricles to contract (c) both the ventricle and auricle to contract (d) heart to relax

Last Answer : Ans:(b)

Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH is no longer released from the hypothalamus. C) Uterine stretching sends nerve impulses to the hypothalamus that releases oxytocin that triggers uterine contraction. D) FSH and LH stimulate the gonads to produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Description : Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH ... produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Last Answer : B) When the blood becomes dilute, ADH is no longer released from the hypothalamus

a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical representation of the graphical activity of the heart du

Description : a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical representation of the graphical activity of the heart du

Last Answer : a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical ... one of the main symptoms of this disease.

a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical representation of the graphical activity of the heart du

Description : a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical representation of the graphical activity of the heart du

Last Answer : a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical ... one of the main symptoms of this disease.

Why does primary sector continues to be the largest employer in India? (a) Secondary and Tertiary sector are not able to generate comparatively enough employment opportunities despite increase in their production level. (b) It generates more employment opportunities. (c) It exploits natural resources and provides raw material to secondary sector.(d) None of the above

Description : Why does primary sector continues to be the largest employer in India? (a) Secondary and Tertiary sector are not able to generate comparatively enough employment opportunities despite increase in their ... exploits natural resources and provides raw material to secondary sector.(d) None of the above

Last Answer : (a) Secondary and Tertiary sector are not able to generate comparatively enough employment opportunities despite increase in their production level.

The grammar with production rules S → aSb |SS|λ generates language L given by: (A) L = {w∈{a, b}* | na(w) = nb(w) and na(v) ≥ nb(v) where v is any prefix of w} (B) L = {w∈{a, b}* | na(w) = nb(w) and na(v) ≤ nb(v) where v is any prefix of w} (C) L = {w∈{a, b}* | na(w) ≠ nb(w) and na(v) ≥ nb(v) where v is any prefix of w} (D) L = {w∈{a, b}* | na(w) ≠ nb(w) and na(v) ≤ nb(v) where v is any prefix of w}

Description : The grammar with production rules S → aSb |SS|λ generates language L given by: (A) L = {w∈{a, b}* | na(w) = nb(w) and na(v) ≥ nb(v) where v is any prefix of w} (B) L = {w∈{a, b}* | na(w) = nb(w) and na(v ... (D) L = {w∈{a, b}* | na(w) ≠ nb(w) and na(v) ≤ nb(v) where v is any prefix of w}

Last Answer : (A) L = {w∈{a, b}* | na(w) = nb(w) and na(v) ≥ nb(v) where v is any prefix of w} 

Assertion` :` In open circulatory system blood is pumped by heart passes throgh large vessels into open spaces or body cavities called sinuses. Reason

Description : Assertion` :` In open circulatory system blood is pumped by heart passes throgh large vessels into open spaces or body cavities called sinuses. Reason

Last Answer : Assertion` :` In open circulatory system blood is pumped by heart passes throgh large vessels into open ... D. If both Assertion & Reason are false.

"Sodium Pump" operates in - (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Description : "Sodium Pump" operates in - (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Last Answer : (3) Nerve impulse Explanation: Na+/K+-ATPase (also known as sodium-potassium pump) is an enzyme located in the plasma them brane of virtually every human cell and is common to all cellular ... are voltagegated, which means that they can open and close depending on the voltage across the membrane.

The nurse auscultates the apex beat at which of the following anatomical locations? a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of maximum impulse, which is normally palpable in the left midclavicular line of the chest wall at the fifth intercostal space. b) Mid-sternum The right ventricle lies anteriorly, just beneath the sternum. c) 2” to the left of the lower end of the sternum Use of inches to identify the location of the apex beat is inappropriate based upon variations in human anatomy. d) 1” to the left of the xiphoid process Auscultation below and to the left of the xiphoid process will detect gastrointestinal sounds, but not the apex beat of the heart.

Description : The nurse auscultates the apex beat at which of the following anatomical locations? a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of ... of the xiphoid process will detect gastrointestinal sounds, but not the apex beat of the heart.

Last Answer : a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of maximum impulse, which is normally palpable in the left midclavicular line of the chest wall at the fifth intercostal space.

“Sodium Pump” operates in (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Description : “Sodium Pump” operates in (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Last Answer : Nerve impulse

Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. Reason `:-` ANF can cause vasodilation and decrease the B

Description : Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. Reason `:-` ANF can cause vasodilation and decrease the B

Last Answer : Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. ... False. D. If both Assertion & Reason are false.

Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle. Reason`:` It is caused by deposits of calcium, fat, chalestero

Description : Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle. Reason`:` It is caused by deposits of calcium, fat, chalestero

Last Answer : Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle. Reason`:` It is ... D. If both Assertion & Reason are false.

Assertion `:` First heart sound (LUBB) is produced at the beginning fo ventricular systole stage. Reason `:` During ventricular systole semilunar valv

Description : Assertion `:` First heart sound (LUBB) is produced at the beginning fo ventricular systole stage. Reason `:` During ventricular systole semilunar valv

Last Answer : Assertion `:` First heart sound (LUBB) is produced at the beginning fo ventricular systole stage. Reason ... D. If both Assertion & Reason are false.

Assertion `:` In joint diastole, all the four chamber of heart are in relaxed state. Reason `:` The tricuspid and bicuspid valves are open and semilun

Description : Assertion `:` In joint diastole, all the four chamber of heart are in relaxed state. Reason `:` The tricuspid and bicuspid valves are open and semilun

Last Answer : Assertion `:` In joint diastole, all the four chamber of heart are in relaxed state. Reason `:` ... False. D. If both Assertion & Reason are false.

Assertion `:` If all external nerve supplies to a human heart are cut there will be no effect on the heart beat. Reason `:` Human heart is a myogenic

Description : Assertion `:` If all external nerve supplies to a human heart are cut there will be no effect on the heart beat. Reason `:` Human heart is a myogenic

Last Answer : Assertion `:` If all external nerve supplies to a human heart are cut there will be no effect on ... False. D. If both Assertion & Reason are false.

Assertion `:` Systolic pressure is higher then diastolic pressure. Reason `:` Arteries contract during systole of heart.

Description : Assertion `:` Systolic pressure is higher then diastolic pressure. Reason `:` Arteries contract during systole of heart.

Last Answer : Assertion `:` Systolic pressure is higher then diastolic pressure. Reason `:` Arteries contract during ... D. If both Assertion & Reason are false.

Assertion `:-` Larynx is a cartilaginous box which helps in sound production. Reason `:-` Epiglottis flap covers the glottis during swallowing and pre

Description : Assertion `:-` Larynx is a cartilaginous box which helps in sound production. Reason `:-` Epiglottis flap covers the glottis during swallowing and pre

Last Answer : Assertion `:-` Larynx is a cartilaginous box which helps in sound production. Reason `:-` Epiglottis ... . D. If both Assertion & Reason are false.

Assertion : Carbohydrate are most suitable for the production of energy in the body than proteins and fats. Reason : Carbohydrates can be stored in ti

Description : Assertion : Carbohydrate are most suitable for the production of energy in the body than proteins and fats. Reason : Carbohydrates can be stored in ti

Last Answer : Assertion : Carbohydrate are most suitable for the production of energy in the body than proteins and ... D. If both Assertion & Reason are false.

Assertion : Inhibin is secreted by the corpus luteum. Reason : They inhibit the FSH and GnRH production.

Description : Assertion : Inhibin is secreted by the corpus luteum. Reason : They inhibit the FSH and GnRH production.

Last Answer : Assertion : Inhibin is secreted by the corpus luteum. Reason : They inhibit the FSH and GnRH ... D. If both Assertion and Reason are false.

Is it possible to transmit AV over a wifi network to a Windows based PC?

Description : Is it possible to transmit AV over a wifi network to a Windows based PC?

Last Answer : I’m gonna say no. There are some PC graphics cards that can wirelessly transmit their signal but they are expensive and not very good.

Dish Network remote won't change AV inputs.

Description : Dish Network remote won't change AV inputs.

Last Answer : Which remote are you using exactly? Giving us the make & model number would be of great help.