RESPIRATORY ORGAN SYSTEM
PURPOSE/FUNCTION:
It serves the important purpose of exchange of gases between blood and lungs leading to intake of oxygen and exhale of CO2 (carbon dioxide). It is considered as the most important visible organ system as we can’t live without oxygen for few minutes and 4-5 minutes stoppage leads to brain damage.

respiratory system

IMAGE Source:OpenStax College. Anatomy & Physiology, Connexions

Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013.

COMPONENTS:
- NOSE/ MOUTH: Nose is the part of the human face that contains the nostrils and organs of smell and forms the beginning of the respiratory tract. Nose also helps in controlling voice. Mouth is the body opening through which our voice comes out and food is taken in.
- SINUSES: The part of the human face that contains the nostrils and organs of smell and forms the beginning of the respiratory tract. Sinuses are the channels for the passage of a body fluid, such as blood.

- TRACHEA and bronchi: It is composed of thin incomplete rings of hyaline cartilage connected by a membrane called the annular ligament. It is the airway that extends from the larynx into the thorax where it divides into the right and left bronchi. It forms a branching network that brings air directly to body cells. Bronchi leads directly to the lungs.
- LUNGS: The two spongy organs in our chest for air-breathing. It serve as the organs of gas exchange. Blood flowing through the lungs picks up oxygen from inhaled air and releases carbon dioxide, which is exhaled. Air enters and leaves the lungs through the bronchial tubes.
- RED BLOOD CELLS: It is a disk-shaped, biconcave cell in the blood that contains hemoglobin. It lacks a nucleus, and transports oxygen and carbon dioxide to and from the tissues.

MAJOR DISEASES:
- ASTHMA
- CHRONIC OBSTRUCTIVE PULMONARY DISEASES (COPD)
- LUNG CANCER
- VIRUSES

 

 

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