Consists of branched airways from the trachea to the alveoli and ends with alveolar sacs:

Fibrosis in the lungs makes them stiffer resulting in a decrease in lung compliance.

This buffer system acts to bind excess acidic or alkaline compounds w/in cells & plasma:

This lung is divided into 2 lobes:

Renal cortex:

Calyces:

A substance that releases H+ to a solution:

Occurs when the internal intercostal muscles and abdominal muscles contract:

Place the sequence of the Renin-Angiotensin Mechanism in proper order: (Answer this question using the text box below; 1.82 points each) 51. ____ 52. ____ 53. ____ 54. ____ 55. ____ a.  angiotensin II causes vasoconstriction b.  decreased blood pressure stimulates the juxtaglomerular apparatus to   secrete renin c.  aldosterone increases reabsorption of Na & H2O follows d.  renin converts angiotensinogen to angiotensin I e.  ACE converts angiotenin I to angiotensin II  

Physiologic buffer systems are the first line defense against shifts in acid-base balance.