Respiratory System

Front 1

Nose

Back 1

Where air enters the body. Bodies first line of defense for the respiratory system. Lining catches contaminants and also warms air before it enters the windpipe (trachea)

Front 2

trachea

Back 2

windpipe, large tube made of rings of cartilage that moves air from the nose to lungs (thru bronchial tubes)

Front 3

bronchus (plural bronchi)

Back 3

Major airway passage that goes into each lung

Front 4

Lungs

Back 4

main organ of the respiratory system on either side of the heart protected by the ribs. Inside the alveoli exchange gases between air and blood.

Front 5

alveoli

Back 5

tiny air sacs where gas exchange takes place in the lungs. (oxygen into blood CO2 out of blood

Front 6

pharynx

Back 6

cavity behind the nose and mouth connecting them to the esophagus

Front 7

larynx

Back 7

voice box

Front 8

bronchioles/bronchial tubes

Back 8

smaller sub-division of bronchi and tubes that branch throughout the lung with alveoli at the ends. (like upside down roots)

Front 9

diaphragm

Back 9

muscle that helps us breathe inhale it contracts and pulls down as lungs expand when you exhale it relaxes the process reverses as lungs deflate

Front 10

Main function of the respiratory system

Back 10

obtain oxygen from the air and remove waste CO2 from the body

Front 11

nitrogen

Back 11

what most of air we breath is made up of

Front 12

cellular respiration

Back 12

cells using glucose from food and oxygen from breathing to make energy, CO2 is the waste product

Front 13

Bronchial tubes

Back 13

move air from the trachea to the lungs

Front 14

Where lungs are located

Back 14

either side of the heart, in the thoracic cavity enclosed in the ribs above the diaphragm

Front 15

cartilage

Back 15

connect ribs allowing flexibility to make room for lungs to expand when air is inhaled.