Home
Class 12
BIOLOGY
How many among the given statements are ...

How many among the given statements are Incorrect? All of the nodal tissue in human heart is capable of generating 70 - 75 action potentials in a minute.B. Lymph is devoid of all formed elements of blood.C. Cardiac output is defined as the volume of blood pumped by each ventricle in a cardiac cycle.d Wall of left ventricle is thickest among all four chambers of human heart.

A

Four

B

Three

C

Two

D

One

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TEST 3

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|94 Videos

  • TEST 2

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|619 Videos

  • TEST 4

    AAKASH INSTITUTE ENGLISH|Exercise TYPE |1 Videos

Similar Questions

Explore conceptually related problems

Read the following statements (i) The nodal musculature of the heart has the ability to generate action potentials without any external stimuli. (ii) The AV node is located in the right ventricle close to the AV septum (iii) The stroke volume is the amount of blood pumped out by each ventricle per minute. Which of these are correct ?

Given below are four statement regarding human blood vascular system (a) there is no role of calicum ions in blood clotting (b)cardiac output is the amount of blood pumped by each ventricle in one second (c )arteries are thin walled and have narrow lumen ass compared to veins (4)the stage of cardiac cycle where all the four chambers are relexed stage is called joint Diastole How many of the above statement are correct ?

a. Amphibians and reptiles have a 3 chambered heart with ___ atria and ___ventricle. b. Heart is ___ derived organ and protected by a double walled membranous bag called ____ c. The opening between right Atrium and Right ventricle is guarded by a valve formed of ___ muscular flaps, the ___ valve. d. The wall of ventricle is ____ than atria. e. SAN can generate the maximum number of action potential i.e., ____ mi n^(-1) . therefore it is called _____ f. Atrial systole increases the flow of blood into the ventricles by about ____ percent. g. In ____ all the four chambers of the heart are in a relax state. h. The ____ wave represents the depolarisation of the atria. i. A system of blood vessels is present in our body exclusively for the circulation of blood to and from the cardiac musculature called _____ j. PNA ____ the rate of heart beat and ______

Read the following statement (I - IV) I. The machine that is used to obtain ECG of a patient is called an electrocardiograph . II. The volume of blood pumped out by each ventricle per cardiac cycle is called the cardiac output . III. The second heart sound is associated with the opening of both semilunar values . IV. Hypertension is denoted by the ratio of systolic and diastolic pressure in mm of mercury pressure. How many statement (s) is/ are correct from the above ?

Read the following statements and select the correct ones (i) Nodal tissue is specialised cardiac musculature in human heart which has the ability to generate action potential due to an external stimuli (ii) Position of SAN - right corner of right atrium (iii) Position of AVN - right corner of ventricle (iv) AV bundle continues from AVN (v) Purkinje fibres are modified cardiac muscle fibres that originate from the atrioventricular node and spread into the two ventricles.

mark the true and false statements a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical representation of the graphical activity of the heart during a cardiac cycle. c. The cardiac output of a normal man will be much lesser than an athlete. d. The wall of right ventricle is much thicker than the left ventricle e. In pisces the two separate circulatory pathways are present, hence they have double circulation. f. The clsoed circulatory pattern is considered to be more advantageous than open circulatory pattern. g. Glucose is absorbed by simple diffusion through lymph in lacteales present in the intestinal villi. h. The SAN can generate the maximum number of action potential i.e. 140-150 mi n^(-1) in neonates, and is responsible for initiation and maintenance of the rhythmic contractile activity of the heart. i. Angina can occur in any age but more common among the neonates and infants. j. heart failure is sometimes called congestive heart failure because congestion of the blood vessels is one of the main symptoms of this disease.

Read the following four statements carefully: I. About 70 ml of blood is pumped out by each Ventricle during a cardiac cycle is called the beat volume. II. The fluid called lymph is almost similar to blood plasma without any exception III. Heart failure simply means when the heart stops beating . IV. Hypotension leads to heart diseases as well as damage to the brain , kidney and other vital organs. How many from the above is/are correct ?

Read the following statements carefully (i) In fishes, the heart pumps out deoxygenated blood which is oxygenated by the gills and supplied to the body parts from where deoxygenated blood is returned to the heart. (ii) The openings of the right and the left ventricle into pulmonary artery and aorta respectively are provided with the mitral valves. (iii) The nodal musculature has the ability to generate action potential without any external stimuli, i,e., it is autoexcitable. (iv) The T-wave of ECG represents depolarisation of the ventricles. Which of the above four statements are incorrect?

Read the following statements about the internal structure of the human heart. I. Humans have a an auto - excitable , chambered , muscular and myogenic heat. II. The heart is mesodermal in origin and is present symmetrically between two lungs in the thoracic cavity. III. The opening between the right atrium and left ventricle is guarded by a tricuspid valve. IV. Only the sino - atrial node of the heart has hte ability to generate action potentials without any external stimuli. How many statement/s is/ are incorrect from the above ?

Select the set of incorrect statements from the ones given below. A. Plasma is straw coloured and viscous in nature. B. Eosinophils are 2-3% of total WBC_(S) . C. Lymphocytes are the second-most abundant agranulocytes. D. Stroke volume is the amount of blood that each ventricle pumps during one minute.

AAKASH INSTITUTE ENGLISH-TEST 3-EXERCISE
  1. Mark the incorrect statement w.r.t ECG

    Text Solution

    |

  2. Which of the following remains unchanged during strenous exercise?

    Text Solution

    |

  3. Given the folloeing values, calculate the net filtration pressure and ...

    Text Solution

    |

  4. Find the odd one among the following taxa w.r.t presence of double cir...

    Text Solution

    |

  5. Read following statements regarding various steps of urine formation. ...

    Text Solution

    |

  6. Read the following statements and select the correct option.Statement-...

    Text Solution

    |

  7. Which of the following is not considered as component of tubular parts...

    Text Solution

    |

  8. How many among the given statements are Incorrect? All of the nodal ti...

    Text Solution

    |

  9. Find the odd one among the following substances which promote or are i...

    Text Solution

    |

  10. Select the incorrect statement in following given options in relation ...

    Text Solution

    |

  11. Ram's blood cells do not agglutinate with addition of either anti-A or...

    Text Solution

    |

  12. All of the following statements are correct, except

    Text Solution

    |

  13. Name the following: b. Cortical portions projecting between the medu...

    Text Solution

    |

  14. Select the correct match between different formed elements of blood an...

    Text Solution

    |

  15. Read the following statements and select the correct option. A. Da...

    Text Solution

    |

  16. Even under the influence of ADH, maximum reabsorption of water occurs ...

    Text Solution

    |

  17. Plasma proteins which protect our body from pathogens are

    Text Solution

    |

  18. Most toxic nitrogenous waste product among following is

    Text Solution

    |

  19. Read the following statements and select the correct option stating wh...

    Text Solution

    |

  20. Serum is

    Text Solution

    |