Question

ppt of biology identification of the structure of lungs through model or chart.​

Answer 1

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Lungs :-

The lungs are the major organs of respiration. They are located in the chest, either side of the mediastinum.

• The function of the lungs is to oxygenate blood. They achieve this by bringing inspired air into close contact with oxygen-poor blood in the pulmonary capillaries.

• The function of the lungs is to oxygenate blood. They achieve this by bringing inspired air into close contact with oxygen-poor blood in the pulmonary capillaries.The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.

Additional information :-

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Respiratory System Parts and Functions:-

Nose

• The nose possesses a couple of exterior nostrils, which are divided by a framework of cartilaginous structure termed as the septum.

Larynx

• Two cartilaginous chords lay the framework for the larynx. They are situated at the point of joining the pharynx and trachea.

Pharynx

• The nasal chambers open up into a wide hollow space termed as the pharynx.

Trachea

• The trachea or the windpipe rises below the larynx and moves down to the neck.

Bronchi

• The trachea splits into two tubes termed as bronchi, which enter each lung individually.

Lungs

• Lungs are the chief centres of the respiration in humans and other vertebrates.

Features of the Human Respiratory System

• The respiratory system in humans has the following important features.

• The energy is generated by the breakdown of glucose molecules in all living cells of the human body.

• Oxygen is inhaled and is transported to various parts and are used in the process of burning food particles (breaking down of glucose molecules) at the cellular level in a series of chemical reactions.

• The obtained glucose molecules are used for discharging energy in the form of ATP- adenosine triphosphate molecules by the human body to fulfil essential life processes.

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