lesson: 2a RESPIRATORY PATHOLOGY Flashcards
this _____ are long side with mucociliary apparatus, that secretes mucus, that tend to interrupt the adherence of obnoxious agent & it may be expelled as a mucus discharge.
Mucociliary apparatus
is made up of alveolar sac & the space is the alveolus & the alveolar wall;
alveolar parenchyma
this wall of alveoli produce pneumocytes II that produce the sufactant, it’s made up of ______ without this surfactant the wall may not stand to be rigid or it may tend to collapse.
Dipalmitoyl lecithin
phagocytosis, main line of defense against inhaled particles & microbial pathogen in the alveoli
alveolar macrophages
macrophages is associated w/ LPS receptor & cold light receptor & contain many lysosomal enzymes that would help in the digestion of pathogens.
Pulmonary Alveolar Macrophages
this macrophages is present in the blood stream, phagocytosis, removal of particles, endotoxin, & microbial pathogens in the circulation.
Intavascular macrophages
2 substance that is responsible for the breakdown of antimicrobial barrier.
Beta-deficiencies & anionic peptides
consodilation of the lungs causes _____ result in decreased phagocytosis.
Hypoxia
once the lungs become ______ it become hardened & this hardening is what you call consolidation, therefore the alveolar parenchymal is unable to sustained the inhalation & exhalation.
pneumonic
this 2 are part of normal nasal flora, yet this 2 are both responsible for ;
1. shipping fever
2. atrophic rhinitis
Mannheimia haemolytica & Bordetella bronchiseptica
the nasal flora is only present in the most proximal regions of the conducting system, that is in the :
- Nasal cavity
- Nasopharynx
- Larynx
- Trachea
the lower resp. tract remains essentially strerile due to the exrtraordinary ?
respiratory defense mechanism
lungs receive all the blood from the ______ thus exposing these organs to circulating pathogeens & cellular debris
Right ventricle
Defense mechanism can be susdivided by:
- Non-specific
- Specific
Non specific defense system:
- Air turbelences
- Mucus trapping
- Mucocilliary clearance
- Phagocytosis
- coughing
- sneezing
Specific defense system:
- Antibodies
- Cell-mediated immunity
- Secretions
- Ab-mediated phagocytosis
defense mechanism protect the resp. system by:
- Detoxifying
- Neutralizing
- Trapping
- Trapping, destroying & removing
the ff factors are also known to impair bacterial clearance in the lung:
- stress
- dehydration
- lung edema
- uremia
- ammonia
- Immunodeficiency
the first lined of defense against inhaled particles are the ______ & ______ created by the nasal turbinates.
Air turbulences & Centrifugal forces
have a characteristics of coiled appearance that created air turbulence during inspiration.
Conchae
this um may pass through the nasel cavity & reach the trachea & bronchi
10um
in this _____ sudden directional change in airflow causes the suspended particles to be impacted & trapped on the mucosa.
Bronchial bifurcations
bronchial structures are specialized structures known as?
Bronchial associated lymphoid tissue (BALT)
particles trapped in the bronchial mucus are expelled the conducting system by the?
mucociliary movement
only the particles of _____um in dm can reach the transitional exchange system.
2um in dm
in this region ______ particles are phagocytized by PAM’s which is then moved toward the bronchioles, until they reached mucociliary excalator.
Alveolar region
excessive release of this _____ by PAMPS can result in lung injury.
proteolytic enzymes
is lined by a highly vascularized mucosa w/ abundant blood vessels in the submucosa.
Nasal cavity
because of this abundant vascularization, the nasal cavity is unusually prone to :
- Hyperemia
- Congestion
- Hemorrhage
a medical term that describes a nose bleed
Epistaxis
is coughing up blood or presence of blood in mouth, saliva or sputum.
Hemoptysis
this 2 is frequently seen in bloat, toxemia, sepsis, inhalation of irritant gases & inflammation.
Nasal congestion & hemorrhage
epistaxis is also frequent indicator of;
- Nasal trauma
- Neoplasia
in cattle, epistaxis-hemoptysis is often associated w/ ?
Ruptures Pulmonary Vessels (aneurysm)
in horses, epistaxis is also seen in:
- Exercise-induced pulmonary hemorrhage
- Ethmoid hematoma
is an important condition in older horses clinically charc. by chronic progressive & generally unilateral nasal bleeding.
Ethmoid hematoma
Nasal congestion & nasal hemorrhage is commonly seen following exposure to:
- irritant gases- such as
- ammonia
- hydrogen sulfide
- nitrogen oxide
Nasal congestion & nasal hemorrhage often result to:
- Shock
- Bloat
- Rhinitis
common term of virus of common cold:
rhinovirus
step by step cell injury, degeneration & repair:
cell injury
degeneration
detachment
exfoliation
inflammation
mitosis
repair
when virus is replicating in your nasal cell it causes?
degeneration