The right lung (the larger of the two) has 3 lobes. T. he horizontal fissure separates the superior lobe from the middle lobe, while the right oblique fissure separates the middle and inferior lobes. The smaller left lung only has 2 lobes.
Carry-on bag. The maximum dimensions for a carry-on bag are 9 inches x 14 inches x 22 inches (22 cm x 35 cm x 56 cm), including handles and wheels. The maximum dimensions for your personal item, such as a shoulder bag, backpack, laptop bag or other small item, are 9 inches x 10 inches x 17 inches (22 cm x 25 cm x 43 cm). To determine if a bag will fit onboard, bag sizers will be available in the airport lobby.
Allegiant Airlines (G4) allows 1 carry-on small personal item - purse, briefcase, or backpack - fee free - and one carry-on bag - subject to an applicable fee. The carry-on should not exceed the following size and weight restrictions: 9 x 14 x 22 inches (22.9 x 35.6 x 55.9 centimeters) including handles and wheels.