Med Terms Chapter 9: Anatomical Terms Part 2

Front 1

alveoli

Back 1

thin-walled microscopic air sacs that exchange gases

Front 2

lungs

Back 2

two spongy organs, located in the thoracic cavity enclosed by the diaphragm and rib cage, responsible for respiration

Front 3

lobes

Back 3

subdivisions of the lung, two on the left and three on the right

Front 4

pleura

Back 4

membranes enclosing the lung (visceral pleura) and lining the thoracic cavity (parietal pleura)

Front 5

pleural cavity

Back 5

potential space between the visceral and parietal layers of the pleura

Front 6

diaphragm

Back 6

muscular partition that separates the thoracic cavity from the abdominal cavity and aids in respiration by moving up and down

Front 7

mediastinum

Back 7

partition that separates the thorax into two compartments (that contain the right and left lungs) and encloses the heart, esophagus, trachea, and thymus gland

Front 8

mucous membranes

Back 8

thin sheets of tissue that line the respiratory passages and secrete mucus, a viscid (sticky) fluid

Front 9

cilia

Back 9

hair-like processes from the surface of epithelial cells, such as those of the bronchi, that provide upward movement of mucus cell secretions

Front 10

parenchyma

Back 10

functional tissues of any organ such as the tissues of the bronchioles, alveoli, ducts, and sacs that perform respiration