Description : Systemic heart refers to (a) the heart that contracts under stimulation from nervous system (b) left auricle and left ventricle in higher vertebrates (c) entire heart in lower vertebrates (d) the two ventricles together in humans.
Last Answer : (b) left auricle and left ventricle in higher vertebrates
Description : The chamber of the mammalian heart from which deoxygenated blood is sent for oxygenation is (a) right auricle (b) right ventricle (c) left auricle (d) left ventricle
Last Answer : Ans:(d)
Description : The route of circulation in the human heart (a) Left auricle - right auricle - right ventricle - pulmonary artery - lungs - pulmonary veins - Left ventricle - aorta (b) Right auricle - left ... - right ventricle - pulmonary artery - lungs - pulmonary veins - left auricle - left ventricle - aorta
Last Answer : Ans:(b)
Description : Assertion `:` During diastole, ventricles receives blood from auricles. Reason `:` During ventricular diastole (stage of rapid inflow) the pressure in
Last Answer : Assertion `:` During diastole, ventricles receives blood from auricles. Reason `:` During ventricular ... . If both Assertion & Reason are false.
Description : Blood pressure is high in the – (1) Ventricles (2) Arteries (3) Veins (4) Auricles
Last Answer : (2) Arteries Explanation: Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels.
Description : The QRS complex in a standard ECG represents (a) repolarisation of auricles (b) depolarisation of auricles (c) depolarisation of ventricles (d) repolarisation of ventricles.
Last Answer : (c) depolarisation of ventricles
Description : Blood pressure is high in the (1) Ventricles (2) Arteries (3) Veins (4) Auricles
Last Answer : Arteries
Description : When no atrial impulse is conducted through the AV node into the ventricles, the patient is said to be experiencing which type of AV block? a) Third degree In third degree heart block, two impulses ... , type II, only some of the atrial impulses are conducted through the AV node into the ventricles.
Last Answer : a) Third degree In third degree heart block, two impulses stimulate the heart—one stimulates the ventricles and one stimulates the atria.
Description : Bundle of His is a network of (a) muscle fibres distributed throughout the heart walls (b) muscle fibres found only in the ventricle wall (c) nerve fibres distributed in ventricles (d) nerve fibres found throughout the heart.
Last Answer : (b) muscle fibres found only in the ventricle wall
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
Description : Tricuspid valve is found in between (a) sinus venosus and right auricle (b) right auricle and right ventricle (c) left ventricle and left auricle (d) ventricle and aorta.
Last Answer : b) right auricle and right ventricle
Description : When the nurse observes an ECG tracing on a cardiac monitor with a pattern in lead II and observes a bizarre, abnormal shape to the QRS complex, the nurse has likely ... Ventricular fibrillation is a rapid but disorganized ventricular rhythm that causes ineffective quivering of the ventricles.
Last Answer : a) Ventricular bigeminy Ventricular bigeminy is a rhythm in which every other complex is a PVC.
Description : Assertion `:` If the muscles of both auricles of the person permanently fail to contract due to any reason there will still be no change in his genera
Last Answer : Assertion `:` If the muscles of both auricles of the person permanently fail to contract due to any ... . D. If both Assertion & Reason are false.
Description : Which structure is called pace maker of the heart?
Last Answer : S.A. node
Description : Heart of Heart is Pace maker of the heart is
Last Answer : Heart of Heart is Pace maker of the heart is A. SA Node B. AV Node C. Conus arterious D. Heart muscles
Description : "Pace-maker" is associated with – (1) Kidney (2) Brain (3) Heart (4) Lung
Last Answer : (3) Heart 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. The primary purpose of a pacemaker is to maintain an adequate heart rate.
Description : With which of the following body organ is 'pace-maker' associated? (1) Liver (2) Brain (3) Heart (4) Lungs
Last Answer : (3) Heart Explanation: A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias.
Description : In which following known a pace-maker of heart
Last Answer : SA node
Description : “Pace-maker” is associated with (1) Kidney (2) Brain (3) Heart (4) Lung
Last Answer : Heart
Description : When right ventricle of human heart contract then blood pumped into `:-`
Last Answer : When right ventricle of human heart contract then blood pumped into `:-` A. All parts of body B. Lungs C. Pulmonary veins D. Systemic aorta
Description : Give one reason for the following statements : (a) The blood is called connective tissue. (b) Muscles are able to contract and relax to bring about movements. (c) Muscles of heart are called involuntary muscles. -Biology 9th
Last Answer : a) blood flows in every part of our body and thus connecting every part of our body and hence blood is known as liquid connective tissue b)as skeletal muscles contracts and relax as they have special ... c)muscle of heart are known as involuntary muscle because we can't control them by our own will
Description : The chamber of the heart that receives deoxygenated blood from the various parts of the body is (a) Sinus venous (b) Left auricle (c) Right auricle (d) Right venous
Description : The given figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its functions. (a) C - Vena cava - Takes blood from body parts to right auricle, pCO2 = 45 ... 60 mm Hg (d) B - Pulmonary artery - Takes blood from heart to lungs, pO2 = 90 mm Hg
Last Answer : (a) C - Vena cava - Takes blood from body parts to right auricle, pCO2 = 45 mm Hg
Description : why is sino atrio node pace maker? -Biology
Last Answer : answer:
Description : Which part of the body is related to pace maker? -General Knowledge
Description : Pace maker is
Last Answer : Pace maker is A. Instrument for measuring heart beat B. Instrument for measuring pulse rate C ... -auricular node that provides impulse for heart beat
Description : Pace maker influences `:-`
Last Answer : Pace maker influences `:-` A. Contractino of heart muscles B. Flow of blood in heat C. Rate of heart beat D. Generartion of action potential
Description : Where is the pace maker situated `:-`
Last Answer : Where is the pace maker situated `:-` A. In left auricle near opening of pulmonary vein B ... On inter-auricular septum D. On inter-ventricular septum
Description : Can a defibrillator be used if you have a pace maker?
Last Answer : Need answer
Description : Which set is similar? (a) Corpus luteum - Graafian follicles (b) Sebum - Sweat (c) Bundle of His - Pace maker (d) Vitamin B7 - Niacin
Last Answer : (a) Corpus luteum - Graafian follicles
Description : By which name Pace-maker is also known?
Last Answer : S.A. Node
Description : What are tissue made up of interconnected elongated cells that contract and relax called?
Last Answer : These are called "muscles".
Description : What happens during isokinetic exercise Muscles contract at a constant rate. Muscles contract and relax to move a joint. Muscles do not contract at all. Muscles contract with very little body movement.?
Last Answer : Muscles contract and relax to move a joint. ... Muscles contract at a constant rate. Muscles contract and relax to move a joint.
Description : Out of 24 hours the human heart works, ventricles contact for (a) 6 hours (b) 9 hours (c) 11 hours (d) 12 hours
Description : In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart? (a) S - start of systole (b) T - end of diastole (c) P - depolarisation of the atria (d) R - repolarisation of ventricles
Last Answer : (c) P - depolarisation of the atria
Description : What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL ? (a) 125 beats per minute (b) 50 beats per minute (c) 75 beats per minute (d) 100 beats per minute
Last Answer : (d) 100 beats per minute
Description : True or false? The two chambers at the bottom of your heart are called ventricles.
Last Answer : True
Description : Assertion `:` Though AV node generates impulses, it is still not called as the pacemaker of heart. Reason `:` The rythmicity of impulse production is
Last Answer : Assertion `:` Though AV node generates impulses, it is still not called as the pacemaker of heart. ... . D. If both Assertion & Reason are false.
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
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
Description : (a) Draw a sectional view of the human heart and label on it – Aorta, Right ventricle and Pulmonary veins. (b) State the functions of the following components of transport system: (i) Blood (ii) Lymph -Biology
Last Answer : Answer.(a) (b) The functions of blood and lymph are as follows: (i) BloodOxygen is transported by the blood to the tissues of the body for the breakdown of digested food.Carbon dioxide is ... without which nothing will diffuse. (iii) A thin surface across which gases diffuse. (iv) Warm conditions.
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
Description : When the Left Ventricle in the human heart contracts, the blood moves to the - (1) Brain (2) Pulmonary Artery (3) Aorta (4) Lungs
Last Answer : (3) Aorta Explanation: As the left ventricle contracts, the oxygenated blood is pumped into the main artery of the body — the aorta. To get to the aorta, blood passes through the aortic semilunar valve, which serves to keep blood flowing from the aorta back into the left ventricle.
Description : Why the left ventricle has the strongest wall in human heart?
Last Answer : Left ventricle contracts more forcefully than the right one, as it has to push the blood to all around the body, while right one has to push to blood just to lungs.
Description : In the heart: a. excitation begins in the sinoatrial node b. excitation of the ventricle begins at the apex and spread to the base c. depolarization occurs from epicardium to endocardium d. all above
Last Answer : all above
Description : Which one of the following groups of animals is correctly matched with its characteristic feature without any exception? (a) Reptilia : possess 3-chambered heart with an incompletely divided ... ) Chondrichthyes : possess cartilaginous endo- skeleton (d) Mammalia : give birth to young ones
Last Answer : (c) Chondrichthyes : possess cartilaginous endo- skeleton
Description : Which of the following characteristic features always holds true for the corresponding group of animals? (a) Possess a mouth with an Chordata upper and a lower jaw (b) 3- ... heart with Reptilia one incompletely divided ventricle (c) Cartilaginous endoskeleton Chondrichthyes (d) Viviparous
Last Answer : (c) Cartilaginous endoskeleton