Anatomy Flashcards
What travels through the hilum of the lungs?
Pulmonary arteries, Pulmonary veins, Main bronchus, Pulmonary lymphatic vessels, Bronchopulmonary lymph nodes, Pulmonary visceral afferents, Autonomic motor nerves
Which part of the thorax is the heart and pericardium in?
Middle mediastinum
Is the phrenic nerve a unilateral or bilateral structure?
Bilateral
Which is anterior to the hilum, the phrenic or vagus nerves?
Anterior = phrenic (posterior = vagus)
What are the layers of the pericardium?
Outer layer = fibrous pericardium
Inner = serious (split into visceral and parietal)
What occurs if the pericardial cavity fills with abnormal quantities of fluid?
Cardiac tamponade (if blood = haemopericardium)
How is fluid in the pericardium released?
Pericardiocentesis:
aspiration superoposteriorly under xyphoid process
What is the transverse pericardial sinus?
A space posterior to the ascending aorta and pulmonary trunk - finishes anteriorly to SVC
What are the 3 surfaces of the heart?
Anterior,
Base (the most posterior surface),
Inferior
Where is the apex normally and what can it indicate if it has shifted?
5th intercostal space, left mid-clavicular line
If shifted to left = cardiomegaly
Which is more lateral, the phrenic or vagus nerves?
Lateral = phrenic Medial = vagus
Which vein drains the head and neck?
Left and right internal jugular veins
Which vein drains the upper limbs?
Left and right subclavian veins
Describe the venous drainage into the SVC
Left internal jugular + subclavian ==> Left brachiocephalic, Left + right brachiocephalic ==> SVC Azygous vein also drains into the SVC just above the right atrium
What structure of the surface of the atria allow them to fill with more blood?
Auricles
What is the order or branches on the arch of the aorta?
Brachiocephalic trunk, left common carotid, left subclavian
Which veins drain into the right atrium?
SVC, IVC, coronary sinus
Which artery supplies the head and neck?
Common carotid arteries
What are the important borders of the heart?
Right and left lateral borders
Inferior border
Superior border
Which chambers make up the base, apex, anterior and inferior surfaces?
Base: left atrium
Inferior: right and left ventricles
Anterior: right ventricle
Apex: left ventricle
What are the first branches of the ascending aorta?
The right and left coronary arteries
Describe the right coronary artery and its branches
Right coronary artery (in coronary groove),
Has a right marginal branch
Describe the left coronary artery and its branches
Left main stem, left anterior descending (LAD), diagonal, left marginal and circumflex
Where does all the venous drainage from the heart drain into?
The coronary sinus (in the atrioventricular groove)