Tidal volume is the volume of air inspired or expired during normal respiration. It is about 6000 to 8000 mL of air per minute. The hourly tidal volume for a healthy human can be calculated as: Tidal volume = 6000 to 8000 mL/minute Tidal volume in an hour = 6000 to 8000 mL × (60 min) = 3.6 × 10₅ mLRead more
Tidal volume is the volume of air inspired or expired during normal respiration.
It is about 6000 to 8000 mL of air per minute.
The hourly tidal volume for a healthy human can be calculated as:
Tidal volume = 6000 to 8000 mL/minute
Tidal volume in an hour
= 6000 to 8000 mL × (60 min)
= 3.6 × 10₅ mL to 4.8 × 10₅ mL
Therefore, the hourly tidal volume for a healthy human is approximately 3.6 × 105 mL to 4.8 × 10₅ mL.
(a) IRV and ERV:- Inspiratory reserve volume (IRV):- It is the maximum volume of air that can be inhaled after a normal inspiration. 2. It is about 2500 – 3500 mL in the human lungs. Expiratory reserve volume (ERV):- It is the maximum volume of air that can be exhaled after a normal expiration. 2. IRead more
(a) IRV and ERV:-
Inspiratory reserve volume (IRV):-
It is the maximum volume of air that can be inhaled after a normal inspiration. 2. It is about 2500 – 3500 mL in the human lungs.
Expiratory reserve volume (ERV):-
It is the maximum volume of air that can be exhaled after a normal expiration. 2. It is about 1000 – 1100 mL in the human lungs.
(b) Inspiratory capacity and Expiratory capacity:-
Inspiratory capacity (IC):-
1. It is the volume of air that can be inhaled after a normal expiration.
2. It includes tidal volume and inspiratory reserve volume. IC = TV + IRV
Expiratory capacity (EC):-
1. It is the volume of air that can be exhaled after a normal inspiration.
2. It includes tidal volume and expiratory reserve volume. EC = TV + ERV
(c) Vital capacity and Total lung capacity
Vital capacity (VC):-
1. It is the maximum volume of air that can be exhaled after a maximum inspiration. It includes IC and ERV.
2. It is about 4000 mL in the human lungs.
Total lung capacity (TLC):-
1. It is the volume of air in the lungs after maximum inspiration. It includes IC, ERV, and residual volume.
2. It is about 5000 – 6000 mL in the human lungs.
Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO2, inadequate oxygen, etc. The different types of hypoxia are discussed below. Hypoxemic hypoxia In this condition, there is a reductionRead more
Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO2, inadequate oxygen, etc. The different types of hypoxia are discussed below.
Hypoxemic hypoxia
In this condition, there is a reduction in the oxygen content of blood as a result of the low partial pressure of oxygen in the arterial blood.
Anaemic hypoxia
In this condition, there is a reduction in the concentration of haemoglobin.
Stagnant or ischemic hypoxia
In this condition, there is a deficiency in the oxygen content of blood because of poor blood circulation. It occurs when a person is exposed to cold temperature for a prolonged period of time.
Histotoxic hypoxia
In this condition, tissues are unable to use oxygen. This occurs during carbon monoxide or cyanide poisoning.
Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO₂, inadequate oxygen, etc. The different types of hypoxia are discussed below. For more answers visit to website: https://www.tiwariacadeRead more
Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO₂, inadequate oxygen, etc. The different types of hypoxia are discussed below.
The oxygen dissociation curve is a graph showing the percentage saturation of oxyhaemoglobin at various partial pressures of oxygen. The curve shows the equilibrium of oxyhaemoglobin and haemoglobin at various partial pressures. In the lungs, the partial pressure of oxygen is high. Hence, haemoglobiRead more
The oxygen dissociation curve is a graph showing the percentage saturation of oxyhaemoglobin at various partial pressures of oxygen.
The curve shows the equilibrium of oxyhaemoglobin and haemoglobin at various partial pressures. In the lungs, the partial pressure of oxygen is high. Hence, haemoglobin binds to oxygen and forms oxyhaemoglobin. Tissues have a low oxygen concentration. Therefore, at the tissues, oxyhaemoglobin releases oxygen to form haemoglobin. The sigmoid shape of the dissociation curve is because of the binding of oxygen to haemoglobin. As the first oxygen molecule binds to haemoglobin, it increases the affinity for the second molecule of oxygen to bind. Subsequently, haemoglobin attracts more oxygen.
What is Tidal volume? Find out the Tidal volume (approximate value) for a healthy human in an hour.
Tidal volume is the volume of air inspired or expired during normal respiration. It is about 6000 to 8000 mL of air per minute. The hourly tidal volume for a healthy human can be calculated as: Tidal volume = 6000 to 8000 mL/minute Tidal volume in an hour = 6000 to 8000 mL × (60 min) = 3.6 × 10₅ mLRead more
Tidal volume is the volume of air inspired or expired during normal respiration.
It is about 6000 to 8000 mL of air per minute.
The hourly tidal volume for a healthy human can be calculated as:
Tidal volume = 6000 to 8000 mL/minute
Tidal volume in an hour
= 6000 to 8000 mL × (60 min)
= 3.6 × 10₅ mL to 4.8 × 10₅ mL
Therefore, the hourly tidal volume for a healthy human is approximately 3.6 × 105 mL to 4.8 × 10₅ mL.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/biology/chapter-17/
Distinguish between (a) IRV and ERV (b) Inspiratory capacity and Expiratory capacity (c) Vital capacity and Total lung capacity
(a) IRV and ERV:- Inspiratory reserve volume (IRV):- It is the maximum volume of air that can be inhaled after a normal inspiration. 2. It is about 2500 – 3500 mL in the human lungs. Expiratory reserve volume (ERV):- It is the maximum volume of air that can be exhaled after a normal expiration. 2. IRead more
(a) IRV and ERV:-
Inspiratory reserve volume (IRV):-
It is the maximum volume of air that can be inhaled after a normal inspiration. 2. It is about 2500 – 3500 mL in the human lungs.
Expiratory reserve volume (ERV):-
It is the maximum volume of air that can be exhaled after a normal expiration. 2. It is about 1000 – 1100 mL in the human lungs.
(b) Inspiratory capacity and Expiratory capacity:-
Inspiratory capacity (IC):-
1. It is the volume of air that can be inhaled after a normal expiration.
2. It includes tidal volume and inspiratory reserve volume. IC = TV + IRV
Expiratory capacity (EC):-
1. It is the volume of air that can be exhaled after a normal inspiration.
2. It includes tidal volume and expiratory reserve volume. EC = TV + ERV
(c) Vital capacity and Total lung capacity
Vital capacity (VC):-
1. It is the maximum volume of air that can be exhaled after a maximum inspiration. It includes IC and ERV.
2. It is about 4000 mL in the human lungs.
Total lung capacity (TLC):-
1. It is the volume of air in the lungs after maximum inspiration. It includes IC, ERV, and residual volume.
2. It is about 5000 – 6000 mL in the human lungs.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/biology/chapter-17/
Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.
Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO2, inadequate oxygen, etc. The different types of hypoxia are discussed below. Hypoxemic hypoxia In this condition, there is a reductionRead more
Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO2, inadequate oxygen, etc. The different types of hypoxia are discussed below.
Hypoxemic hypoxia
In this condition, there is a reduction in the oxygen content of blood as a result of the low partial pressure of oxygen in the arterial blood.
Anaemic hypoxia
In this condition, there is a reduction in the concentration of haemoglobin.
Stagnant or ischemic hypoxia
In this condition, there is a deficiency in the oxygen content of blood because of poor blood circulation. It occurs when a person is exposed to cold temperature for a prolonged period of time.
Histotoxic hypoxia
In this condition, tissues are unable to use oxygen. This occurs during carbon monoxide or cyanide poisoning.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/biology/chapter-17/
Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.
Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO₂, inadequate oxygen, etc. The different types of hypoxia are discussed below. For more answers visit to website: https://www.tiwariacadeRead more
Hypoxia is a condition characterised by an inadequate or decreased supply of oxygen to the lungs. It is caused by several extrinsic factors such as reduction in pO₂, inadequate oxygen, etc. The different types of hypoxia are discussed below.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/biology/chapter-17/
Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal pattern?
The oxygen dissociation curve is a graph showing the percentage saturation of oxyhaemoglobin at various partial pressures of oxygen. The curve shows the equilibrium of oxyhaemoglobin and haemoglobin at various partial pressures. In the lungs, the partial pressure of oxygen is high. Hence, haemoglobiRead more
The oxygen dissociation curve is a graph showing the percentage saturation of oxyhaemoglobin at various partial pressures of oxygen.
The curve shows the equilibrium of oxyhaemoglobin and haemoglobin at various partial pressures. In the lungs, the partial pressure of oxygen is high. Hence, haemoglobin binds to oxygen and forms oxyhaemoglobin. Tissues have a low oxygen concentration. Therefore, at the tissues, oxyhaemoglobin releases oxygen to form haemoglobin. The sigmoid shape of the dissociation curve is because of the binding of oxygen to haemoglobin. As the first oxygen molecule binds to haemoglobin, it increases the affinity for the second molecule of oxygen to bind. Subsequently, haemoglobin attracts more oxygen.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/biology/chapter-17/