Anatomy Flashcards
how many types of pneumocytes are there?
type 1 and type2
what are type 1 pneumocytes?
very thin squamous cells which cover around 97% of the alveolar surface
what are type 2 pneumocytes?
cuboidal cells
what do type 2 pneumocytes do?
secrete surfactant
what can happen to type 2 pneumocytes during lung damage?
could differentiate into type 1 pneumocytes
what is the arterial supply to the tonsils?
tonsillar artery, a branch of the facial artery
which vessel may result in haemorrhage during a tonsillectomy?
external palatine vein
which vessel is immediately lateral to the tonsils?
external palatine vein
at which level does the IVC perforate the diaphragm?
T8
at which level does the oesophagus and vagal trunk perforate the diaphragm?
T10
at which level does the aorta, thoracic duct and azygous vein perforate the diaphragm?
T12