Respiratory System Flashcards
Is the functional unit of respiratory system.
ALVEOLI
Respiratory rate
16-25 breaths per minute
Organ lined with simple COUMNAR and covered with Pleural Cavity.
Lungs
Lungs are ___ to the heart.
LATERAL
Heart is lined with what cavity?
Mediastinal cavity
2 cavities covered by Thoracic cavity
Mediastinal and Pleural Cavity
Lung with Larger lobe having oblique and horizontal fissures
Right lung
Lung with smaller lobe having oblique fissure only
Left lung
What is the additional lobe in the right lung?
Middle lobe
What is the additional fissure in right lung?
Horizontal fissure
A wedge-shaped located on the medial aspect of the lungs.
Hilum
Hilum basically means?
Gateway of an organ
Structures that passes through the hilum of the lungs
Bronchi
Pulmonary artery and vein
hilar lymph nodes
It is an indentation that allows space for the heart.
Cardiac notch
It is the tongue-like depression located on the LEFT lung.
Lingula
Lobe where the cardiac notch is located
Superior lobe of the left lung
Lingula is found in what lobe?
Superior lobe of the left lung
The main muscle for respiration
Diaphragm
Between what cavity diaphragm is located?
Below the thoracic cavity and above the peritoneal cavity
Phrenic refers to
Diaphragm
Blood supply for the diaphragm
Musculophrenic artery
Nerve innervation of the diaphragm
Phrenic nerve
Structures that passes through Caval opening of the diaphragm
Inferior vena cava
Right phrenic nerve
Structures that passes through Esophageal opening of the diaphragm
Esophagus
R and L vagus nerve
Left gastric vessel
Structures that passes through Aortic opening of the diaphragm
Aorta
Azygus vein
Thoracic duct
In what direction diaphragm is displaced during inspiration?
INFERIORLY
Action of diaphragm during expiration
Recoils
Vein that runs at the side of the THORACIC vertebra towards the superior vena cava that provides an alternative path for blood to the RIGHT ATRIUM when superior and inferior vena cava are BLOCKED
Azygos vein
True or False. Contraction of diaphragm initiates expiration.
False- inspiration
True or false. During EXPIRATION, it does not require any muscle due to ELASTIC RECOIL
True
2 zones in respiration
Conducting zone
Respiratory zone
Organs involved in the conducting zone
Nasal pasages Pharynx Trachea Bronchus Bronchioles
Lining epithelium of nasopharynx
Stratified squamous
Pseudostratified columnar ciliated epithelium with goblet cells
Epithelial lining of Oropharynx
Non-keratinized stratified squamous
Part or pharynx that regulates the passage of air into the lungs and food into the esophagus by means of EPIGLOTTIS
Laryngopharynx
2 normal earcobic microflora in the oral cavity
Streptococcus
Actinomycetes
Most common strep infection
Tonsiitis
2nd strep infection
Endocarditis
Structures that has schneiderian membrane
Mx sinus
Nasopharynx
middle inferior concha
Nasal cavity
Also known as windpipe
Trachea
A C-shaped cartilaginous rings lined with PERICHONDRIUM that contains cilia
Trachea/windpipe
Function of CIlia
Traps bacteria, Filters air