Resp booklet Flashcards
What skeletal structures form the boundaries of the thoracic inlet?
T1
Rib 1
Mandible
What skeletal structures form the boundaries of the thoracic outlet?
Zygomatic process
Costal cartilage
Rib 11 + 12
T12
What ribs form the costal margin?
Ribs 5-10
Which ribs are directly connected to the sternum through costal cartilage?
Ribs 2-7
Which ribs are attahed indirectly to the sternum through costal cartilage?
Rib 1
Ribs 8-16
What muscle is primarily used for the newborn in breathing?
Diaphgram
What is thoracic outlet syndrome?
Where brachial plexus, Subclavian artery + vein are compressed
Between which two intercostal muscles is the nuerovascular bundle found?
Innermost + internal
What is the superficial intercostal muscle called + orientation?
External intercostal muscle
Runs superomedially
What is the intermediate intercostal muscle called + orientation?
Internal intercostal muscles
Runs inferolaterally
What is the deep intercostal muscle called + orientation?
Innermost intercostal muscle
External intercostal muscle
Runs superomedially
In what part of the rib is the neurovascular bundle located?
Costal groove
Where does the external intercostal muscle end. What completes the space?
Costochondral junction
Space filled by external intercostal membrane
Where does the internal intercostal muscle end. What completes the space?
Sternum to posterior side of costal angles
Space filled by internalintercostal membrane
Where does the innermost intercostal muscle end. What completes the space?
Fills central half
Filled anteriorly by transversus thoracis muscles
Posteriorly by subcostalis muscles
What are the tributaries of the azygous vein?
Posterior intercostal veins
hemiazygous vein
Bronchial veins
Pericardial veins
Where does the azygous vein drain?
IVC
What two veins drain into the azygous from the left side of the posterior chest wall?
Hemizygous
Accessory hemizygous
What side of the chest wall does the thoracic duct drain?
Left side
Where does the right side of the chest wall drain?
Right lymphatic duct
What is the dermatome of the sternal angle?
C4
What is the dermatome of the nipple?
T1
What is the dermatome of the umbilicus?
T10
What is the dermatome of the inguinal region?
S3/S4
Which cardiac fibrous structure is attached to the central tendon?
IVC
To which vertebral bodies are the crura attached?
L1-3 on Right
L1/2 on left
Which serous membrane covers the superior surface of diaphgram?
Pleural membrane - parietal layer
Which serous membrane covers the inferior surface of the diaphgram?
Parietal layer of peritoneum
At what vertebral level is the IVC hiatus?
T8
At what vertebral level is the oesphageal hiatus?
T10
At what vertebral level is the Aortic hiatus?
T12
Other than the main three hiatuses, what other structures transverse the diaphrgam?
Azygous vein
Thoracic duct
Sympathetic trunk
Phrenic + vagus nerves
What spinal level causes innervation to the phrenic nerves?
C3-C5
What cartilage makes up adam’s apple?
Thyroid cartilage
What structures form the laryngeal inlet?
Epiglottis
Aryepiglotic folds
Arygenoid cartilage
Coniculate cartilage
What type of epithelium lines the cavity of the larynx?
Pseudostratified ciliated columnar epithelium
What type of epithelium lines the true vocal cords?
Stratified squamous epithelium
Where does the trachea bifuricate?
T4 (sternal angle)
How many rings are there to the trachea?
16-20
What muscle completes the trachea posteriorly?
Trachialis
What is the final keel-shaped cartilage ring at the bifurication of the trachea called?
Carina
What nerve lies lateral to the trachea on both sides?
Recurrent laryngela nerve
Which of the main bronchi is shorter, wider and more vertical?
The right
What is the hilum of the lung?
Where the structures enter/leave the lung
What is the root of the lung?
The area that connects the hilum of the lung to the mediastinum
What membrane covers the apex of the lung?
Suprapleural membrane
Which lung is shorter/broader of the two?
Right (due to liver)
What features should you use to “side” a lung?
Cardia notch
Number of lobes
Horizontal fissure
Which bronchi are responsible for the bronchopulmonary segments?
Tertiary
How many bronchopulmonary segments are there in each lung?
Right - 10
Left 8-9
What structures pass through the hilum?
Pulmonary artery
Main bronchus
Superoplr/inferior pulmonary veins
Right side only - eparterial bronchus
What structure in the wall determines a bronchus?
Hyaline cartilage
Of the hilum structures, which is most posterior?
Main bronchus
Of the hilum structures, which is most superior?
Pulmonary artery
Of the hilum structures, which is most anterior?
Pulmonary vein - superior
Of the hilum structures, which is most inferior?
Inferior pulmonary vein
Where in the hilum is the eparterial bronchus located in the right lung?
Above the artery
Which layer of pleura enters the fissures of the lung?
Visceral
Which pleura lines the structures between the two pleural cavities?
Mediastinal pleura
Which pleura plues on the superior surface of the diaphragm?
Diaphragmatic pleura
Which pleura lines the inner surfaces of the ribs/sternum?
Costal pleura
Which pleura covers the apex of the lungs?
Cervical pleura
What is significant of the plueral reflections?
The two membranes are further apart
Useful dor aspiration of fluid
What is the innervation of the parietal pleura?
Phrenic nerve (mediastinal + diaphragmatic pluera) Rest by intercostal nerves
How much futher down is the pleura than the base of the lung?
Two ribs further down
Which rib does the oblique fissure follow?
6th rib
At what level does the horizontal fissure lie?
4th rib