Question

with the help of a labelled diagram ,describe the respiratory system of human describe the respiratory system in human

Answer 1

The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history. In land animals the respiratory surface is internalized as linings of the lungs.[1] Gas exchange in the lungs occurs in millions of small air sacs called alveoli in mammals and reptiles, but atria in birds. These microscopic air sacs have a very rich blood supply, thus bringing the air into close contact with the blood.[2] These air sacs communicate with the external environment via a system of airways, or hollow tubes, of which the largest is the trachea, which branches in the middle of the chest into the two main bronchi. These enter the lungs where they branch into progressively narrower secondary and tertiary bronchi that branch into numerous smaller tubes, the bronchioles. In birds the bronchioles are termed parabronchi. It is the bronchioles, or parabronchi that generally open into the microscopic alveoli in mammals and atria in birds. Air has to be pumped from the environment into the alveoli or atria by the process of breathing which involves the muscles of respiration.

Respiratory system

A complete, schematic view of the human respiratory system with their parts and functions.
Details
Identifiers
Latin systema respiratorium
TA A06.0.00.000
FMA 7158
Anatomical terminology
[edit on Wikidata]
Play media
Video explanation of the anatomy of the respiratory system
In most fish, and a number of other aquatic animals (both vertebrates and invertebrates) the respiratory system consists of gills, which are either partially or completely external organs, bathed in the watery environment. This water flows over the gills by a variety of active or passive means. Gas exchange takes place in the gills which consist of thin or very flat filaments and lammelae which expose a very large surface area of highly vascularized tissue to the water.

Other animals, such as insects, have respiratory systems with very simple anatomical features, and in amphibians even the skin plays a vital role in gas exchange. Plants also have respiratory systems but the directionality of gas exchange can be opposite to that in animals. The respiratory system in plants includes anatomical features such as stomata, that are found in various parts of the plant.[3] .
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Answer 2

We all breath air that contains oxygen required for respiration. Respiration is both external and internal. The taking in, and giving out, of air is called as external respiration or Breathing. Breathing consist of inhalation and exhalation. It continues throughout the life of an individual. Taking in of air, rich in oxygen, is called inhalation. Giving out of air, rich in carbon dioxide is called exhalation. These process take place with the help of a muscular diaphragm and the rib cage. The diaphragm is a muscular partition which separates the chest cavity from the lower abdominal cavity. The chest cavity surrounded by the rib cage. The lungs are located in the chest cavity. The number of times a person breathe per minute is termed as Breathing rate. One breath is one inhalation + one exhalation. An adult normally breaths from 14 to 20 times per minute, but but exercise can raise the rate of breathing upto 80 breaths per minute. A breathing rate of a child at rest is faster than the adult at rest. A newborn baby has a red to about 40 Breadths per minute. In general, smaller animals have faster breathing rates than larger animals. For example :------ A rat breaths about to 60 times per minute while horse breathes only about 12 time per minute.