Hepatic stellate cell in the cell body store vitamin A as retinol ester. The function and role of quiescent hepatic stellate cells is unclear. Recent evidence suggests a role as a liver-resident antigen-presenting cell, presenting lipid antigens to and stimulating proliferation of NKT cells. When the liver is damaged, stellate cells can change into an "activated" state. The activated stellate cell is characterized by proliferation, contractility, and chemotaxis. This state of the stellate cell is the main source of extracellular matrix production in liver injury. This attribute makes it a key factor in the pathophysiology of the liver. The amount of stored vitamin
Adjective phrase phrase "of wealth" modifies "a man" in a manner similar to how an adjective phrase would, and it can be reworded with an adjective, e.g. "Mr Clinton is a wealthy man". A more accurate term for such cases is "phrasal attributive" or "attributive phrase". Constituency tests can also be used to identify adjectives and adjective phrases. Here are the three constituency tests, according to X-bar theory, that prove the adjective phrase is both a constituent, and an AP. Sentence = Sam ordered a very spicy pizza. 1) Coordination tests can be used to confirm if "very spicy" is an adjective