Home
Class 12
BIOLOGY
When a person brathes air through a tube...

When a person brathes air through a tube directly
into the trachea (tracheotomy) it may lead to
serious lung crushing and infection due to

A

Cooling effect

B

Drying effect

C

Non filtering effect

D

All of these

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question regarding the effects of breathing air directly into the trachea through a tube (tracheotomy), we can break down the reasoning step by step: ### Step-by-Step Solution 1. **Understanding the Respiratory Pathway**: - Normally, air enters the body through the nose or mouth, passes through the nasal cavity, pharynx, larynx, and then into the trachea. This pathway is designed to condition the air before it reaches the lungs. 2. **Functions of the Respiratory Airways**: - The respiratory airways perform several critical functions: - **Filtration**: The nasal cavity filters out dust, pathogens, and other particles from the air. - **Humidification**: The air is moistened to prevent dryness in the lungs. - **Temperature Regulation**: The air is warmed to body temperature, ensuring it does not shock the lungs. 3. **Effects of Tracheotomy**: - When air is breathed directly into the trachea via a tube, these functions are bypassed: - **Non-Filtration Effect**: The air is not filtered, which can allow pathogens and particles to enter the lungs, leading to infections. - **Drying Effect**: The air is not humidified, which can dry out the lung tissues and lead to irritation or damage. - **Cooling Effect**: The air is not warmed to body temperature, which can cause discomfort and potential harm to the lung tissues. 4. **Conclusion**: - Because all these functions are compromised when air is introduced directly into the trachea, it can lead to serious lung issues, including infections and lung damage. Therefore, the correct answer to the question is "all of these" (cooling effects, drying effect, non-filtering effect). ### Final Answer When a person breathes air through a tube directly into the trachea (tracheotomy), it may lead to serious lung crushing and infection due to **all of these effects**: cooling effects, drying effect, and non-filtering effect.
Promotional Banner

Topper's Solved these Questions

  • BREATHING AND EXCHANGE OF GASES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D|11 Videos
  • BREATHING AND EXCHANGE OF GASES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - B|35 Videos
  • BODY FLUIDS AND CIRCULATION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment Section - D Assertion - Reason Type Questions|9 Videos
  • CELL CYCLE AND CELL DIVISION

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-D (Assertion-Reason Type Questions )|10 Videos

Similar Questions

Explore conceptually related problems

Air entering the lungs of a patient through a tracheotomy (a tube inserted directly into the trachea) is colder and drier than normal, which often causes lung infection. This occurs primarily because the air

When a person breathes out normally, then the amount of air which remains in the lung after a normal expiration is

When a person dies after stung by a bee followed by the administration of penicillin, death may be due to

A steel tube of length 1.00 m is struck at one end. A person with his ear close to the other end hears the sound of the blow twice one travelling through the body of the tube and the other through the air in the tube. Find the time gap between the two hearings.

The word fluid means a substance having particles which readily of its magnitude (a small shear stress, which may appear to be of negligible will cause deformation in the fluid). Fluids are charactrised by such properties as density. Specific weight, specific gravity, viscosity etc. Density of a substance is defined as mass per unit volume and it is denoted by. The specific gravity represents a numerical ratio of two densities, and water is commonly taken as a reference substance. Specific gravity of a substance in written as the ratio of density of substance to the density of water. Specific weight represents the force exerted by gravity on a unit volume of fluid. It is related to the density as the product of density of a fluid and acceleration due to gravity. Viscosity is the most important and is recognized as the only single property which influences the fluid motion to a great extent. The viscosity is the property by virtue of which a fluid offers resistance to deformation under the influenece if shear force. The force between the layers opposing relative motion between them are known as forces of viscosity. When a boat moves slowly on the river remains at rest. Velocities of different layers are different. Let v be the velocity of the level at a distance y from the bed and V+dv be the velocity at a distance y+dy . The velocity differs by dv in going through a distance by perpendicular to it. The quantity (dv)/(dy) is called velocity gradient. The force of viscosity between two layers of a fluid is proportional to velocity gradient and Area of the layer. F prop A & F prop (dv)/(dy) F= -etaA(dv)/(dy) ( -ve sign shown the force is frictional in nature and opposes relative motion. eta coefficient of dynamic viscosity Shear stress (F)/(A)= -eta(dv)/(dy) and simultaneously kinematic viscosity is defined as the dynamic viscosity divided by the density. If is denoted as v . The viscosity of a fluid depends upon its intermolecular structure. In gases, the molecules are widely spaced resulting in a negligible intermolecular cohesion, while in liquids the molecules being very close to each other, the cohesion is much larger with the increases of temperature, the cohesive force decreases rapidly resulting in the decreases of viscosity. In case of gases, the viscosity is mainly due to transfer of molecular momentum in the transerve direction brought about by the molecular agitation. Molecular agitation increases with rise in temperature. Thus we conclude that viscosity of a fluid may thus be considered to be composed of two parts, first due to intermolecuar cohesion and second due to transfer of molecular momentum. If the velocity profile is given by v=(2)/(3)y-y^(2)v is velocity in m//sec y is in meter above the bad. Determine shear stress at y=0.15m , & eta=0.863 Ns//m^(2)

The word fluid means a substance having particles which readily of its magnitude (a small shear stress, which may appear to be of negligible will cause deformation in the fluid). Fluids are charactrised by such properties as density. Specific weight, specific gravity, viscosity etc. Density of a substance is defined as mass per unit volume and it is denoted by. The specific gravity represents a numerical ratio of two densities, and water is commonly taken as a reference substance. Specific gravity of a substance in written as the ratio of density of substance to the density of water. Specific weight represents the force exerted by gravity on a unit volume of fluid. It is related to the density as the product of density of a fluid and acceleration due to gravity. Viscosity is the most important and is recognized as the only single property which influences the fluid motion to a great extent. The viscosity is the property by virtue of which a fluid offers resistance to deformation under the influenece if shear force. The force between the layers opposing relative motion between them are known as forces of viscosity. When a boat moves slowly on the river remains at rest. Velocities of different layers are different. Let v be the velocity of the level at a distance y from the bed and V+dv be the velocity at a distance y+dy . The velocity differs by dv in going through a distance by perpendicular to it. The quantity (dv)/(dy) is called velocity gradient. The force of viscosity between two layers of a fluid is proportional to velocity gradient and Area of the layer. F prop A & F prop (dv)/(dy) F= -etaA(dv)/(dy) ( -ve sign shown the force is frictional in nature and opposes relative motion. eta coefficient of dynamic viscosity Shear stress (F)/(A)= -eta(dv)/(dy) and simultaneously kinematic viscosity is defined as the dynamic viscosity divided by the density. If is denoted as v . The viscosity of a fluid depends upon its intermolecular structure. In gases, the molecules are widely spaced resulting in a negligible intermolecular cohesion, while in liquids the molecules being very close to each other, the cohesion is much larger with the increases of temperature, the cohesive force decreases rapidly resulting in the decreases of viscosity. In case of gases, the viscosity is mainly due to transfer of molecular momentum in the transerve direction brought about by the molecular agitation. Molecular agitation increases with rise in temperature. Thus we conclude that viscosity of a fluid may thus be considered to be composed of two parts, first due to intermolecuar cohesion and second due to transfer of molecular momentum. Viscosity of liquids

Torricelli was the first do devise an experiment for measuring atmospheric pressure . He took calibrated hard glass tube , 1 m in lengt and of uniform cross section , closed at one end . He filled the whole tube with dry mercury taking care than no air or water droplets remain inside the tube , closed the opposite end of the tube tightly with thumb and inverted it . He put this inverted mercury tube into a mercury through , taking care that the end of the tube remains inside the mercury through , An interesting thing was noticed . Mercury in the tube fell down at first and then stopped at a particular position . The height was 76 cm above the free surface of mercury in the through . When the given tube was inclined or lowered in the mercury trough , the vertical haight of mercury level in the tube was always found constant . Torricelli explained this by saying that the free surface of mercury in the trough . Hence , the hydrostatic pressure exerted by the trough measures the atmospheric pressure . If an additional hole is also made at P ' at the top point of the tube , then A. mercury will not come out of the tube B. mercury may come out of the tube after some time . C. mercury will come out of the tube instantly D. none of these

Torricelli was the first do devise an experiment for measuring atmospheric pressure . He took calibrated hard glass tube , 1 m in lengt and of uniform cross section , closed at one end . He filled the whole tube with dry mercury taking care than no air or water droplets remain inside the tube , closed the opposite end of the tube tightly with thumb and inverted it . He put this inverted mercury tube into a mercury through , taking care that the end of the tube remains inside the mercury through , An interesting thing was noticed . Mercury in the tube fell down at first and then stopped at a particular position . The height was 76 cm above the free surface of mercury in the through . When the given tube was inclined or lowered in the mercury trough , the vertical haight of mercury level in the tube was always found constant . Torricelli explained this by saying that the free surface of mrcury in the trough . Hence , the hydrostatic pressure exerted by the trough measures the atmospheric pressure . If a small hole is made at point P in the barometer tube , then

Torricelli was the first do devise an experiment for measuring atmospheric pressure . He took calibrated hard glass tube , 1 m in lengt and of uniform cross section , closed at one end . He filled the whole tube with dry mercury taking care than no air or water droplets remain inside the tube , closed the opposite end of the tube tightly with thumb and inverted it . He put this inverted mercury tube into a mercury through , taking care that the end of the tube remains inside the mercury through , An interesting thing was noticed . Mercury in the tube fell down at first and then stopped at a particular position . The height was 76 cm above the free surface of mercury in the through . When the given tube was inclined or lowered in the mercury trough , the vertical haight of mercury level in the tube was always found constant . Torricelli explained this by saying that the free surface of mercury in the trough . Hence , the hydrostatic pressure exerted by the trough measures the atmospheric pressure . If this expriment uses water instead of mercury , then A. length of water will be equal to 76 cm B. length of water will be less than 76 cm C. length of water will be greater than 76 cm D. none of the above

A dc motor works on the principle that a current carrying coil, when placed in a magnetic field experiences a torque. The arrangement consists of a coil suspended in a region of magnetic field. When a current is passed through the coil, it experiences torque and starts rotating. A simple arrangement is shown below. The coil rotates under the action of torque. The current is supplied to the coil by an arrangement of two sliding contacts and a split ring. As the coil rotates, the magnetic flux linked with the coil changes. This leads to production of an induced emf epsilon in the coil. By Lenz's law, the induced emf opposes the applied voltage and therefore, it is called back emf. If R is the resistance in the coil, the current i flowing through the coil at any instant is i=(V-epsilon)/(R) . The back emf is developed due to induction and it is directly proportional to speed of rotation and it is directly proportional to speed of rotation of the motor. There is a continuous power loss i^(2)R in the motor, in form of heat. The mechanical power output of a dc motor is maximum, when the current through the motor is

AAKASH INSTITUTE ENGLISH-BREATHING AND EXCHANGE OF GASES -ASSIGNMENT SECTION - C
  1. In man and mammals, air passes from outside into the lungs through

    Text Solution

    |

  2. Lungs are enclosed in

    Text Solution

    |

  3. When a person brathes air through a tube directly into the trachea (...

    Text Solution

    |

  4. Pitch of the voice is lower in males than females as the vocal cords...

    Text Solution

    |

  5. Which of the following statement is not true for man?

    Text Solution

    |

  6. The ventilation movements of the lungs in mammals are governed by

    Text Solution

    |

  7. In lungs, the air is separated from the venous blood through

    Text Solution

    |

  8. Which of the following volume of capacity of lungs can't be measured...

    Text Solution

    |

  9. What is the volume of air remaining in the lungs after a normal breath...

    Text Solution

    |

  10. Minute Volume of Respiration (MVR) in a person can be defined as

    Text Solution

    |

  11. When CO(2) concentration in blood increases breathing becomes

    Text Solution

    |

  12. The CO(2) content by volume, in the atmospheric air is about

    Text Solution

    |

  13. Although much CO(2) is carried in blood, yet blood does not become aci...

    Text Solution

    |

  14. The carbon dioxide is transported via blood to lungs mostly

    Text Solution

    |

  15. How the transport of O(2) and CO(2) by blood happens?

    Text Solution

    |

  16. Blood analysis of a patient reveals an unusually high quantity of carb...

    Text Solution

    |

  17. What is true about RBCs in humans ?

    Text Solution

    |

  18. How carbon monoxide, emitted by automobiles affects transport of oxyge...

    Text Solution

    |

  19. In which of the following, is the respiratory rhythm center locate...

    Text Solution

    |

  20. Mark the incorrect statement

    Text Solution

    |