Anatomy Digestive LT. 2,3,4

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Ulcers are a common consequence when ____ production by the stomach is inadequate.

Pepsinogen

The movement of small organic molecules, electrolytes, vitamins, and water across the digestive epithelium and into blood and lymph systems is:

absorption

The breakdown of food into small organic fragments that can be absorbed by the digestive epithelium is most accurately referred to as:

chemical processing

The elimination of waste products from the body is:

defecation

Pancreatic enzymes digest materials after they are secreted into the:

duodenum

Site where pancreatic enzymes and bile enter the alimentary canal:

duodenum

Tube through which food is propelled but no new digestion takes place:

esophagus

Site of vitamin K synthesis by bacteria:

large intestine

Site where starch digestion begins:

mouth

Which one of the following represents the correct order through which food passes in the alimentary canal?

mouth, pharynx, esophagus, stomach, small intestine, large intestine

Which of the following components is responsible for the breakdown of fats?

pancreatic enzymes

Waves of muscular contractions that propel the contents of the digestive tract from one point to another are called:

peristalsis

The physical manipulation of solid food by the tongue, teeth and swirling and mixing motions of the digestive tract is called:

propulsion

Site of initiation of the defecation reflex:

rectum

The process by which food within the small intestine is mixed with digestive juices by backward and forward movement across the internal wall of the organ is called:

segmentation

Primary site of nutrient absorption:

small intestine

Salivary amylase is an enzyme that is only able to digest:

starch

The first nutrient to be chemically digested is:

starch

Site where the beginning of protein digestion occurs:

stomach

The first place where chemical digestion occurs is the:

stomach


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