respiratory anatomy

Question 1

describe the anatomy of the thoracic cage

Answer 1

thoracic cavity is a sealed unit which enables pressure changes associated with breathing to occur
the bony cage protects the contents
cavity is lined with a double layer of simple squamous epithelium lying on connective tissue called the pleura

Question 2

describe the anatomy of the pleura

Answer 2

two layers - visceral and parietal pleura which are continuous with each other to form a sealed pleural sac
between layers there is a potential space which contains fluid to ease movement between the layers so lung lobes can move freely over one another and other intra thoracic structures.

Question 3

what does the visceral pleura invest

Answer 3

tissue of the lung

Question 4

what does the parietal pleura line

Answer 4

all remaining structures in the thorax

Question 5

what forms the parietal pleura

Answer 5

visceral pleura reflected back at root of lung onto the mediastinum forming the mediastinal pleura, the ribcage forming the costal pleura and the diaphragm forming the diaphragmatic pleura.

Question 6

what is the pleural sac divided into

Answer 6

left and right sacs

Question 7

what is the mediastinum

Answer 7

median space between the left and right sides which contains the heart and thoracic organs
deviated to the left by the large right caudal lobe

Question 8

what is the name of the fold that the caudal vena cava runs to the heart in

Answer 8

pilica vena cava