Cardio Anatomy - Mediastinum in Relation to Endovascular Interventions Flashcards
What is the thoracic inlet bounded by?
Rib 1
T1 vertebra
Jugular notch
The division of the inferior and superior mediastinum is on the transverse thoracic plane between ____ and ____ intervertebral disc
sternal ange
T4/5
The anterior medium contains the?
Thymus
The thymus becomes replaced by ? after puberty
adipose tissue
The middle mediastinum contains?
the heart + pericardium
Parts of the great vessels that connect with the heart (inferior SVC, superior IVC, pulmonary trunk + arteries + veins
The posterior mediastinum contains?
Azygous vein (from intercostal veins towards SVC)
Sympathetic turns(chains
Thoracic duct (btw. azygous vein and oesophagus)
Oesophagus
Thoracic aorta
trachea + 2 main bronchi
Vagus nerves + trunks
The azygous vein arches anteriorly superiorly over the?
lung root
The right thoracic duct drains into the?
Right sternal angle
Where is the right sternal angle?
Between the manubrium of the sternum and the body of the sternum
The manubriasternal junction
The thoracic duct drains all of the lymph except?
Right upper left zone in the left sternal angle
Where does the thoracic duct start i the abdomen?
Cisterna Chyli
The vagus nerve is associated with the lateral aspect of the`
Trachea
The left vagus nerve gives off a bunch called the ________ at the level of the _________ (attaches to the isthmus of the aorta)
left recurrent laryngeal nerve ligamentum arteriosum (hooks unter the aortic arch and heads up towards the larynx)
Where does the right vagus nerve give of the right recurrent laryngeal nerve?
Hooks under the right subclavian artery
far superior to the LRLN
What does the superior mediastinum contain? (ant. to posterior)
Braciocephalic veins and SVC Arch of aorta Trachea Oesophagus Thoracic duct
What does the superior mediastinum contain (later to medial)
Phrenic nerves
Vagus nerves
Recurrent laryngeal nerves
What are central veins?
Large veins close enough to the ear that their internal pressure is approx. equal to the pressure within the right atrium
What are the central veins?
Internal jugular veins Subclavian Braciocephalic SVC IVC Iliac Femoral
What causes the double pulsation observed at the JVP?
Atrial contraciton and then filling of the RA against a closed tricuspid valve conducted in a retrograde direction into central veins
The JVP should not be elevated beyond how many centimetres at the angle of Louis?
3
The phrenic enrages are from from combining the?
Anterior rami from spinal nerves C3, 4 and 5
Somatic motor innervation from the phrenic nerves goes to the?
Diaphragm
Somatic sensory nerves from the phrenic nerve goes to?
Mediastinal parietal pleura
Fibrous pericardium
Diaphragmatic parietal pleura
Parietal peritoneum
Which cranial nerve is the vagus nerve?
CN X
