Wednesday, November 21, 2018

Human Respiratory System Organs Structure and Function

/ by  / in / with No comments /

All living organism are require energy to carry out various kind of activities. The process of food oxidation in cells to release energy which energy is utilize by body, called respiration. 
Respiration is a process of release of energy from assimilation food. The respiratory system consist of nose, pharynx, larynx, trachea, bronchi, lungs and alveoli. 
Respiratory, Respiratory system, Respiratory infection, upper respiratory, upper respiratory infection, the respiratory system, respiratory therapist, respiratory failure, respiratory therapy, upper respiratory distress, what is the respiratory system, respiratory therapist salary, respiratory system function, lungs, circulatory system, respiratory disease, icd 10 respiratory failure, respiratory system, respiratory definition, respiratory tract, acidosis, acute respiratory failure, function of the respiratory system, function of respiratory system, respiratory acidosis, 10 facts about respiratory system, respiratory system for kids, respiratory system powerpoint, respiratory system structure and function, respiratory system parts and functions, respiratory system quiz, diagram of human respiratory system, explain the function of the respiratory system, What are 10 interesting facts about the respiratory system?, How does the respiratory system work step by step?, How do the circulatory and respiratory systems work together?, What happens during respiratory failure?, respiratory system ppt, respiratory system diagram, respiratory system in human beings, respiratory system for kids, respiratory system of human body, respiratory system daignostic tests pdf
Respiratory system

 Human respiratory system is divided into 2 parts:


Nose

Nose is an organ for smell. Nose has two chambers, called nasal cavities. Nose has two nostrils, opening of nasal cavities. 

 Nares: 
            It present at base of nose helps in breathing. Nose is the first of the respiratory passages through which the inspired air passes. 

 Nasal cavity: 
                      Nasal cavities are two chambers present on palate bone. They chamber are separated from each other by septum, called nasal septum. 
Nasal cavity made of 3 parts:
  1. Vestibule lined by a skin, it contains hairs and sebaceous glands. These hairs prevent the entry of dust particles.
  2. Respiratory region that part contains many mucus and serous cells. The fresh air passing through it, it became moist and warm.     
  3. Olfactory region lined by highly sensory olfactory epithelium, that helps in detecting odor. Specialized sensory cells for smell and bowmann’s gland for mucus secretion.

Pharynx or Throat

The pharynx is funnel shaped tube about 13 cm long. Pharynx function as a passageway for food and air. The muscles of entire pharynx are arranged in two layers - 
  • An outer circular layer
  • An inner longitudinal layer  
Pharynx can be divided in to three region-  

Nasopharynx: 


 The superior portion of pharynx is nasopharynx. Nasopharynx lies posterior to nasal cavity and extended to the soft palate. Nasopharyns wall receives five opening - two internal nares, two opening from auditory tube and one opening into oropharynx.
  

Oropharynx: 


 Oropharynx lies posterior to the oral cavity and extended from the soft palate inferior to the level of hyoid bone. Oropharynx involves in both respiratory system as well as digestive system.   


Laryngopharynx: 


 The lower portion of pharynx. Like the  oropharynx, laryngopharynx involves in both respiratory system as well as digestive system.     
Pharynx, The pharynx, larynx, pharynx larynx, pharynx function, what is pharynx, what is the pharynx trachea, function of pharynx, pharynx definition, respiratory system, lungs, function of the pharynx, esophagus, pharynx larynx trachea, larynx and pharynx, bronchi, pharynx and larynx, what is a pharynx, mouth, digestive system, nasal cavity, epiglottis, alveoli, the respiratory system, what is the pharynx, pharynx anatomy, pharynx image, pharynx meaning, pharynx information, pharynx pronunciation, pharynx erythema icd 10, pharynx ent, pharynx pdf, nasal pharynx, pharynx vs larynx, parts of the pharynx, anatomy of the pharynx, pharynx cancer symptoms, larynx pharynx trachea, definition of pharynx, nasopharynx anatomy
Pharynx

Larynx Or Voice Box Or Adams Apple

Larynx contains 2 pairs of vocal cord - true cords that help to produce sound and false cords that protect true cord.
It is supported by a framework of 9 cartilages in male and 8 cartilages in female.

  • Hyaline cartilage
                       1- Thyroid cartilage 
                       2- Caricoid cartilage
                       3- Arytenoid cartilages 

  • Elastic cartilage
                       1- Epiglottis
                       2- Corniculate
                       3- Cuneiform


Trachea:

Trachea is a muscular tube about 12-14cm long. Trachea continues into bronchi. Trachea is non-collapsible due to presence of hyaline cartilage rings. 
Trachea is internally lined by pseudostratified ciliated epithelium that helps in filtration of air.


Bronchi:   

Trachea is bifurcates into two bronchi and enter into the lungs through hilum. Bronchi also contain pulmonary vein and pulmonary artery. 
Branches of bronchial tree - 
  • Main bronchi
  • Lobar bronchi
  • Segmental bronchi
  • Bronchioles 
  • Terminal bronchioles 
Bronchi, bronchitis, bronchiolitis, bronchitis icd 10, bronchiectasis, bronchitis symptoms, bronchial asthma, bronchioles, bronchi histology, bronchi and bronchus, what is the purpose of the bronchi, anatomy of bronchus, definition of bronchi, secondary bronchi, bronchioles anatomy
Bronchi


Lungs 

Two lungs are present in thoracic cavity. Lungs helps in respiration that's why lungs considered as respiratory organ. Lungs are protected by bony skeleton, called rib cages.
Cancer, lung, lung cancer, lung disease, popcorn, popcorn lung, lung cancer symptoms, lung pain, lungs, small cell lung cancer, lung sounds, lung nodule, collapsed lung, lung infection, lung cancer signs, lung transplant, iron lung, stage 4 lung cancer, symptoms of lung cancer, pneumonia, where are lungs located picture, pictures of lungs, anatomy of lungs, lung cancer, lung cancer symptoms, lung disease, lung meaning, lungfish, lung infection, left lung anatomy, lung diseases, where are lungs located in back, lungs and heart diagram, types of lung problems, What are different kinds of lung disease?, When back pain is a symptom of lung cancer?, What are potential causes of lung pain?, How many lobes are there in each lung?
Lungs


Lungs Color: 

  • At the time of birth, the lungs are pinkish in color because they are filled with air and blood. 
  • After the human grows, they become blackish due to pollutants.


Location of lungs:

Thoracic cavity 

Structure of lungs: 

Lungs are respiratory organ. Lungs are also protected with the help of coverings, called pleura.

Pleura Cavity 

Between these two pleura layer a cavity exits, known as pleura cavity that is filled with pleural fluid. Pleural layer and pleural fluid are protect the lungs from mechanical shocks and absorbing shocks. 
                                      The function of pleura and pleura fluid is to protect the lungs from mechanical shocks, absorbing shocks, to provide friction-less movement, provide nourishment to the two pleura.The cells of the body need energy for all their metabolic reaction/activities. Most of this energy is derived from chemical reactions, which can only take place in the presence of oxygen. 
The main waste product of these reactions is carbon dioxide. The respiratory system provides the route by which the supply of oxygen present in the atmosphere entire body and it provides the route of excretion for carbon di-oxide.


Alveoli 

The lungs are made up of alveoli cells around 750 millions. There are two type of alveoli cells. 

 Type 1 – Compose with simple squamous epithelium that helps in diffusion of gases.

 Type 2 - Compose with simple cuboidal epithelium that secretes surfactant. Surfactant  decrease surface tension of alveoli so that during exchange of gases, the alveoli would not collapse. 

0 comments:

Post a Comment

Subscribe to: Post Comments (Atom)