anatomy- lungs Flashcards
which bronchus is shorter, wider and more vertical with 3 lobes?
right main bronchus
which bronchus is longer, more narrow and horizontal and has 2 lobes?
left main bronchus
what surface of the lung is the hilum located?
mediastinal surface- an opening for vessels, nerves and bronchi
which lung has 2 fissures?
right lung- oblique and horizontal
left only has oblique
what are the characteristic features of the right lung?
groove for azygos vein groove for esophagus cardiac impression groove for superior vena cava groove for right brachiocephalic vein
what are the characteristic features of the left lung?
lingula cardiac notch cardiac impression (deep) groove for aorta groove for left subclavian vein
what are the functional units of the lung?
bronchopulmonary segments
what does each bronchopulmonary segment consist of?
segmental bronchus
branch of pulmonary artery
lung tissue
surrounding septum
what structures contain cartilaginous rings?
trachea and main bronchi
what is the primary tissue of the lobar bronchi?
cartilaginous plates
which 2 respiratory structures contain smooth muscle?
segmental bronchi
bronchioles
which dome of the diaphragm is slightly higher?
right dome
what are the 3 openings in the diaphragm?
caval opening/foramen- T8
esophageal hiatus- T10
aortic hiatus- T12
what does the caval foramen transmit?
inferior vena cava
right phrenic nerve
what does the esophageal hiatus transmit?
esophagus
ant and post vagal trunks
