Question

write about respiratory system?
Content quality ans plz

Answer 1

heya!
here's your answer!
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the respiratory system in humans consists of air passages:- 
the nose, pharynx, larynx, trachea and bronchi. 

the nose:-
the external part of the nose ears to nationals separated by a cartilaginous CEPTAM. the hairs present in the nostrils prevent large particles from entering the system the 2 nostrils open into a pair of Nasal Chambers. 

nasal Chambers perform three main functions:-
it warms the air as it passes over, it adds moisture to the air, it's mucus secretion in traps harmful particles . 

an additional function of the nose is to smell the sensory cells of smell are located in a special pocket situated high up in the nasal Chambers. 

the phayrnx:-
the nasal Chambers open at the back into a wide cavity difference situated at the back of the mouth it is a common passage for air and put it in leads into an air tube the trachea which is the windpipe and food tube which is the oesophagus. 

when it is not in use the food tube usually collapses, the entrance to the trachea is guarded by the epiglottis which closes at the time of swelling of food. 

the larynx:-
the Lawr all the voice box which is popularly called the Adam's Apple is a hollow cartilaginous structure located at the start of the windpipe. 

the trachea:-
the trachea mergers from the larynx down below the neck where it is partly covered by the thyroid gland. 

the bronchi:-
close to the lungs 3 track your into 2 tubes which is called the bronchi which enters the respective lungs on entering the lungs is bronchus divided into find secondary bronchi which further divided into three for the bronchioles . 

the lungs:-
the lungs are a pair of spongy and Elastic organs formed by the air sacs their connecting bronchioles blood vessels etc. 

two lungs are roughly cone shaped tapering at the top and at the bottom broad. the left lung has two lobes and the right lung has three lobes the left lung is slightly smaller to accommodate the heart in between. 

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the respiratory cycle consists of inspiration and expiration and a very short respiratory pausw in normal adult the breathing rate is 12 to 18 words per minute a newborn dress 60 times per minute slight increase in SEO to content of the blood increases breathing rate. 

the diagram is provided in the pic:) 

please refer to this link for further reference and details:-
https://brainly.in/question/1791034

Hope this helps you:)

Answer 2

Heya!

RESPIRATORY SYSTEM ( in humans)

Respiration is a process of taking in oxygen using it for release of energy by oxidation of food and eliminating the waste products - carbon dioxide and water.

C6H12O6 + 6O2 = 6CO2 + 6H2O + Energy

the human respiratory system consists of organ responsible for taking in oxygen for respiration and releasing carbon dioxide and water vapour which are the ways products formed during respiration.

> The nostrills (passages in the nose)
> The trachea (windpipe)
> The bronchi
> The lungs

These are the main organs of respiratory system of humans.

The taking in of a region oxygen into our body is called inhalation. As the air we breathe in passes through the nostrils it is moistened by the slimy mucus present in the nose.

From the nose and nasal cavity the air passes through the pharynx or throat cavity to the wind pipe or trachea.

Then in the lungs is bronchus branches out into smaller tubes called bronchioles. the air we breathe in eventually reaches the air sacs called alveoli. The sacs are surrounded by blood vessels.

The oxygen present in the air we breathe in goes into the blood contained in blood vessels. The carbon dioxide in the blood passes out of the blood into the air sacs.

Thus, exchange of gases takes place in the lungs.

The blood takes the oxygen to all the cells of the body where it is used to get energy from food.

the carbon dioxide released by the cells as waste goes back into the blood and is released into the air sacs of the lungs .it is then breathed out by us.

The giving out of a reaching carbon dioxide is called exhalation.

Hope this helps!