Question

Describe the functions of respiratory system ( With flowchart only ) with well labelled diagram

There should be

- No Copying pasting

- Neat and clean

- understandable

Important Question for class - 10th

Answer 1

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Nostrils: Air is taken into the body through nostirls that filter air by the fine hairs that line it.

Nasal passage: Air entering from the nostrils leads to the nasal passage. It is responsible for the conditioning of the air mainly.

Pharnyx: Nasal chamber opens into pharynx

Larynx: It is located in the neck and help to protect trachea.it also produces sounds.

Trachea: Or the windpipe passes air from pharynx  and goes into the trachea. incomplete rings of cartilage keep trachea open in allowing the passage of air to the lungs and also prevent it from collapsing when there is no air in it.

Bronchi: Trachea divides into 2 smaller tubes entering the thoracic cavity which i=further extends into lungs.

Bronchioles: Bronchi are subdivided into smaller tubes called bronchioles. Each bronchiole finally terminate into many alveoli.

Alveoli: Gas exchange of oxygen and carbon dioxide takes place in the alveoli. Oxygen from the inhaled air diffuses through the walls of the alveoli and adjacent capillaries into the red blood cells. The oxygen is then carried by the blood to the body tissues.

Diaphragm: The diaphragm is the dome-shaped sheet of muscle and tendon that serves as the main muscle of respiration and plays a vital role in the breathing process. 

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Answer 2

Some functions of respiratory system :— Breathing is the first step of respiration which involves exchange of gases between the air in the alveoli and the blood in the capillaries around the alveoli. In this exchange the blood takes up oxygen from the alveolar air and release Co2 to the alveolar air. Blood has more concentration of Co2 as compared to alveolar air. Thus, the Co2 moves from blood to alveolar air due to simple diffusion. This exchange of gases is called external respiration.