Respiratory System Lakshmi(22BZO205).pdf

Zoology

1. Respiratory System
S . Lakshmi
22BZO205
Bsc . Zoology
3
rd
year shift-II

2. Pathology-Respiratory system
Pneumoconiosis:
A disease of the lungs due to inhalation of dust, characterized by inflammation, coughing, and
fibrosis.
Three types of pneumoconiosis:
Coalworker’spneumoconiosis,duetocoaldust,
Silicosis,duetosilicadust,
Asbestosis,duetoasbestosfibers
Interstitiallungdisease:
Interstitiallungdisease(ILD)isagroupofmanylungconditions.Allinterstitiallungdiseasesaffect
theinterstitium,apartofthelungs.Theinterstitiumisalace-likenetworkoftissuethatgoes
throughoutbothlungs.Itsupportsthelungstinyairsacs,calledalveoli.

3. Pathology –Respiratory system
Pulmonary embolism (PE)
It is a blockage of an artery in the lungs by a substance that has moved from
elsewhere in the body through the bloodstream (embolism).
Pulmonary hypertension
Pulmonary hypertension is a type of high blood pressure that affects the arteries in
the lungs and the right side of the heart.
Atelectasis
Atelectasis is when one or more lobes (sections) of the lung collapse because of a
blockage or pressure inside or outside the bronchial tube in the lungs. The blockage
causes air to become trapped, creating a sensation of shortness of breath.
Tonsillitis
Tonsillitis is an infection of the tonsils, two masses of tissue at the back of the
throat.