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1. Respiratory system
-By zooomania

2. Introduction :
• Respiratory system, the system in living organisms that
takes up oxygen and discharges carbon dioxide in order to
satisfy energy requirements.
• In the living organism, energy is liberated, along with carbon
dioxide, through the oxidation of molecules containing carbon.
• The term respiration denotes the exchange of the respiratory
gases (oxygen and carbon dioxide) between the organism and
the medium in which it lives and between the cells of the body
and the tissue fluid that bathes them.

3. In short
• takes up oxygen and
discharges carbon dioxide,
• Exchange of gases,

4. Different ways of breathing in different animals :

5. Respiration :
• Respiration is the physiological catabolic process in
which gaseous exchange occurs to oxidise food.
• Respiration is a process which involves intake of oxygen
from environment and to diliverr it to the cells.
• it include stepwise oxidation of food in cells with incoming
oxygen, elimination of produced in oxidation, release of
energy during oxidation and storing it in theform of ATP.

6. Types of respiratory organ : All living organism
have different respiratory organs
Animals
• Protists,Bacteria
• Sponges, Coelenteratas,Flatworms
• Annelifs
• insects, centipids Millipeds
• Aquatic arthropods, molluscs
• Prawns, pila
• Fishes Tadpoles
• Frogs,Toads
• Reptiles,Birds Mammals
Respiratory organs
→ Direct respiration through plasma membrane
→ lasma membrane or general body surface
→ Skin (moist cuticle)
→ Trachea
→ Gills
→ Gills
→ Gills
→ Buccopharyngeal Lungs,Skin
→ Lungs (Air sacs)

7. In human respiratory tract or Cunducting Parts - Passage of air
from nostrils to the bronchus.
Respiratory System
• Conducting Parts
 Nostril
 Nasal Chamber
 Pharynx
 Larynx
 Trachea
 Bronchi
• Exchange parts
 Lungs (in Alveolar Sac)

8. Human respiratory organ

9. Organs of Respiration
1. Nostrils : Two external nostrils are present just above the upper lip.
Nostril opens into the vetibule of nasal chambers of nasal cavity.
2. Nasal cavity : It divided into two nasal chamber through the nasal sepum.
3. Pharynx : Nasal chamber open into the pharynx through internal nares.
t is a short, vertical tube measuring about 12cm. in length.

10. 4. LarynIx : It is sound producing organ or phonic organ.
It is also called voice box or Adam's Apple.
5. Trachea or wind pipe : It is about 12 cm long and 2.5cm wide.It lise in
front of the oesophagus and extends downward into the neck.
6.Bronchi : At the position of 4th and 5th thoracic vertebra mainly at 5th
thoracic vertebra trachea divides and gives rise, Right primary bronchus and
left primary bronchus.

11. 7. Lungs : The spece inbetween right and left lungs called
mediastinum within thoracic cavity. lungs are principal respiratory
organs they are located in thoracic cavity.
8. Bronchial Tree : Passage from primary bronchus to terminal
bronchiole called bronchial tree.
• Diaphragm : it is present only in themammals it is present
in between thoracic and abdominal cavity.

12. In Aquatic animals Gills are plays an important role of
respiration

13. Respiration occures in three Phases
1. External Respiration - The event of respiration in between alveoli of
lungs and pulmonary blood .It includes exchange of O2 and CO2, formation
of oxyhaemoglobin and relase of CO2 .
2. Internal Respiration - The eent of respiration in which gaseous
exchange occurs between the tissue cells and blood called internal
respiration.
3. Cellular Respiration : Oxidation of organic compound occurs inside the
cell and energy as ATP and CO2 released.
• Formation of ATP on mitochondria f cells called oxidative
phosphorylation.

14. Thankyou.