Length1.1 tenths m
13,750Red blood cells
6 thousandthsBowling alleys
500 millionSilicon atoms
Photo from Wikimedia Commons
Human Trachea
The reinforced airway tube connecting your throat to your lungs/The Human Body
The trachea (windpipe) is a tube about 10 to 12 cm long reinforced by 16 to 20 C-shaped cartilage rings. It branches into two main bronchi at its lower end. The open side of each cartilage ring faces the esophagus, allowing it to expand when food passes.
Measurements
External diameter2.5 hundredths m
5.9 tenthsGolf ball diameters
1.2 hundredthsSofas
Internal diameter1.8 hundredths m
750 quintillionthsVoyager 1 distances
240Human hair widths
Cartilage ring height4 thousandths m
4 thousandthsMinecraft blocks
1.7 hundredthsChopsticks
Wall thickness3 thousandths m
833 millionthsGazebo diameters
116 quintillionthsLight-days
2.8 thousandthsHurdle heights