More anatomy digestive system help pleeeeee?

Swallowing, or ___(1)__ occurs in two major phases-the __(2)__ and __(3)__. During the voluntary phase, the ___(4)__ is used to push the food into the throat, and the ___(5)___ rises to close off the nasal pageways. As food is moved involuntarily through the pharynx, the __(6)___ rises to ensure that its pageway is covered by the __(7)__ so that ingested substances do not enter respiratory pages. It is possible to swallow water while standing on your head because the water is carried along the esophagus involuntarily by the process of __(8)__. The pressure exerted by food on the ___(9)___ valve causes it to open so that food can enter the stomach. The two major types of movements tha occur in the small intestine are __(10)__ and ___(11)__. One of these movements, the ___(12)___, acts to continually mix the food with digestive juices, and (strangely) also plays a major role in propelling foods along th tract. Still another type of movement seen only in the large intestine , __(13)__ occurs infrequently and acts to move feces over relatively long distances toward the . Presence of feces in the __(14)__excites stretch receptors so that the ___(15)___ reflex is intiated. Irritation of the gastrointestiter in the medulla, causing __(17)___, which is essentially a reverse peristalsis