As air enters the avian lung through a primary bronchus, it flows caudad to the first abdominal air sac (E) and then through the large laterobronchus (5) to the posterior thoracic air sac (D). Reversal of pressure in the posterior thoracic and abdominal air sacs forces air up and forward through the primary bronchus (2) and each dorsobronchus (4) through the paleopulmo through parabronchi (6) to the ventrobronchi (3). Simultaneously, low pressure in the anterior sacs (cervical, interclavicular and anterior throacic) supports the flow from the ventrobronchi; prior to exhalation this air enters the anterior air sacs. Increased pressure in the anterior air sacs forces exploited air out the tracheal system.

Despite the seeming interest of the screenplay, Romero underdirects the entire effort, sending his actors through their paces without bothering to make them believe in the film.

Don't put that in with your jeans: it's a delicate!

Which is why Putin’s onslaught against Ukraine’s freely elected government feels like the geopolitical equivalent of an honor killing.