Chapter 21: The esophagus, trachea and main bronchi. Thoracic part of esophagus. The esophagus (figs. 21-1, 21-2 and 21-3) has cervical, thoracic, and abdominal parts, extending from the lower end of the pharynx (C6 vertebrae) to the cardiac opening of the stomach (T11 or 12 vertebral level).
Hi, The PSAT is a practice test for the SAT. Colleges do not see your scores, so there is no pressure to do well on it as a sophomore. However, juniors who take the PSAT can qualify for scholarships through the National Merit Scholarship Program if they are in the top 10% of test takers.
Phosphatidylserine (PS) Phosphatidylserine (PS) is a type of fat found in brain cells, as well as other cells in plants and animals. The Memory Cure, a perennial bestseller, touts PS supplements as a way to prevent Alzheimerâs. Derived from cow brain until the advent of mad cow disease, PS is now extracted from soy.