KERALA PSC / CDPO / BIOLOGY / HUMAN BODY / LUNGS / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

 

KERALA PSC / CDPO / BIOLOGY / HUMAN BODY / LUNGS / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

KERALA PSC / CDPO / BIOLOGY / HUMAN BODY / LUNGS / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

·      The lung is the essential respiratory organ in all air-breathing animals.

·      Lungs are the respiratory organ in higher vertebrates(man)

·      The main function of the lungs is the oxygenation of blood and to supply oxygen to it

·      The right lung is larger than the left lung

·      Weight of the right lung is about 620g.

·      Weight of the left lung is about 570g

·      Alveoli are small air sacs of the lungs through the walls of which gaseous exchange takes place between blood and air.

·      The organ without muscle is lungs

·      Pleura protects lungs from harm.

·      The CO₂ content in the air that we exhale is about 8%

·      The exchange of O₂ and CO₂ takes place in alveoli of lungs

·      The amount of air moving in and out of lungs during each breath is called tidal volume.

·      The maximum volume of air that can be moved in or out of the lungs is referred to as the vital capacity of the lungs

·      Eupnea: Normal breathing

·      Dyspnea: Painful breathing

·      Anexia: No oxygen in inspired air

·      Pneumonia, pleurosis, bronchitis, silicosis and emphysema are diseases affecting respiratory tract.

·      SARS (Severe Acute Respiratory Syndrome) a lung disease, is caused by Corona Virus.

KERALA PSC / CDPO / BIOLOGY / HUMAN BODY / LUNGS / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY