1 In-text citations in parenthesis, with only the author's last name and page number included (Smith, p. 4). 2  Double-spaced lines, but with no extra line breaks between each citation. 3  Footnotes (superscripted) also used to provide non-essential information.
Muscularis Extema is the layer of the digestive tract wall that is responsible for peristalsis.
peristalsis originating in the smooth muscle of the calyces and initiated by pacemaker cells enables urine to be propelled through both the renal pelvis and the ureters to the bladder the kidneys are the main excretory organs of the urinary tract and are found on the posterior abdominal wall