Human being have lungs for respiration. So respiration in human beings is know as pulmonary respiration.Respiratory organs are well developed in human being.The respiratory system consists of repiratory tract and respiratory organs.The repiratory tract is passage along whcih air travels from the atmosphere in order to reach lungs.
The Nasal Cavity: A part of our nose, the nasal cavity brings in air through the external nostrils, and then sends it to the pharynx with our internal nostrils. The nasal cavity also serves the function of sifting out dust particles with mucus and the cilia as a barrier.
Pharynx:- From the nasal cavity, the air moves into the pharynx which is common area to both digestive and respiratory tracts.The pharynxopens into larynx or voice box through the glotis.The glotis can be covered by the leaf like cartilage epiglotis during swallowing of food.
The Larynx. The Larynx is a cartilagious structure located at the tracheal opening that resembles a box. When we swallow food, the larynx will move up or down to allow the passage of either air or food. The larynx also serves another purpose, as it contains two vocal chords to vibrate and produce sound, allowing us to speak.
The Trachea. After the larynx, thereas the trachea, which is a tube leading to the bronchi. This tube is eleven centimeters in length and twenty five in diameter. The trachea has an incomplete C-shape cartiligious ring within its wall, which prevents it from collapsing so we can keep breathing.
The Bronchi and Bronchioles. The next stop for air is the two primary bronchi that split off from the trachea. These serve the function of carrying the air into the next organ, the lungs. The right bronchus divides into three bronchi, each extending respectively into the three lobes of the right lung. On the other side, the left bronchi divides into two bronchi that extend into the two lobes of the left lung.
Lungs:- There are two lungs in the thoracic cavity.The thoracic cavaty is bounded by vertebral coloumn arrives sternum and diaphragm.The lungs are highly elastic hollow dark coloured spongi bag like structure. The lungs rest on a sheet of muscle called the diaphragm which forms the floor of the thoracic.
The lungs are probably one of the most complex organs in the respiratory tract, with the right lung divided into three lobes and the left lung divided into two. The lungs are enclosed by the pleural cavity, which is itself surrounded by two membranes that secrete an oily matter called pleural fluid, which permeates the Pleural cavity.
The Nasal Cavity: A part of our nose, the nasal cavity brings in air through the external nostrils, and then sends it to the pharynx with our internal nostrils. The nasal cavity also serves the function of sifting out dust particles with mucus and the cilia as a barrier.
Pharynx:- From the nasal cavity, the air moves into the pharynx which is common area to both digestive and respiratory tracts.The pharynxopens into larynx or voice box through the glotis.The glotis can be covered by the leaf like cartilage epiglotis during swallowing of food.
The Larynx. The Larynx is a cartilagious structure located at the tracheal opening that resembles a box. When we swallow food, the larynx will move up or down to allow the passage of either air or food. The larynx also serves another purpose, as it contains two vocal chords to vibrate and produce sound, allowing us to speak.
The Trachea. After the larynx, thereas the trachea, which is a tube leading to the bronchi. This tube is eleven centimeters in length and twenty five in diameter. The trachea has an incomplete C-shape cartiligious ring within its wall, which prevents it from collapsing so we can keep breathing.
The Bronchi and Bronchioles. The next stop for air is the two primary bronchi that split off from the trachea. These serve the function of carrying the air into the next organ, the lungs. The right bronchus divides into three bronchi, each extending respectively into the three lobes of the right lung. On the other side, the left bronchi divides into two bronchi that extend into the two lobes of the left lung.
Lungs:- There are two lungs in the thoracic cavity.The thoracic cavaty is bounded by vertebral coloumn arrives sternum and diaphragm.The lungs are highly elastic hollow dark coloured spongi bag like structure. The lungs rest on a sheet of muscle called the diaphragm which forms the floor of the thoracic.
The lungs are probably one of the most complex organs in the respiratory tract, with the right lung divided into three lobes and the left lung divided into two. The lungs are enclosed by the pleural cavity, which is itself surrounded by two membranes that secrete an oily matter called pleural fluid, which permeates the Pleural cavity.
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