Ch 11 review

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The precursor digestive enzyme secreted by the stomach is ____.

Pepsinogen

Bile is stored and released by the ____.

Gallbladder

Which of the following is necessary for stomach enzyme activation?

HCI

The saliva component that begins the breakdown of carbohydrates is ____.

Salvary amylase

During swallowing, which event prevents food from entering the trachea?

depression of the epiglottis

A rotavirus infection is likely to cause ____.

diarrhea

A diet low in fiber can lead to ____.

diverticulitis

The first portion of the small intestines is the ____.

duodenum

The pancreas secretes digestive enzymes into the ____.

duodenum

The major function of bile is to ____.

emulsify fats

Which hormone stimulates pancreatic and gallbladder secretions?

gastrin

Bacteria that cause tooth decay can lead to ____.

gingivites

A person with celiac disease is hypersensitive to ____.

gluten

The main symptom of gastroesophageal reflux disease is ____.

heart burn

Which of the following disorders affects the liver?

hepatitis

Most of the nutrient digestion and absorption takes place in the ____.

jejunum

The enzyme that digests fats is ____.

lipase

Which accessory digestive organ produces bile?

liver

Which of the following is considered an accessory digestive structure?

liver

The brush border lining of the small intestine is derived from ____.

microvilli

The major function of the small intestines is ____.

most nutrient absorption

Carbohydrate digestion begins in the ____.

mouth

Which layer of the digestive tract is in direct contact with digested food?

mucosa

Which structure has both endocrine and exocrine functions?

pancreas

Which portion of the stomach is connected to the duodenum?

pyloric canal

The region of the large intestine that stores feces is the ____.

rectum

The contractions within the small intestines that aid in digestion and absorption are known as ____.

segmentation

Which layer of the digestive tract gives rise to sphincters?

serosa

Which mineral may contribute to high blood pressure?

sodium

Which structure begins protein digestion under acidic conditions?

stomach

Which layer of the digestive tract contains blood and lymph vessels?

submucosa

Which vitamin is found in leafy green vegetables and is necessary for proper blood clotting?

vitamin k

The movement of materials from the lumen to the blood or lymph is ____.

Absorption

In response to a high fat content in chyme, the duodenum releases ____.

CCK

The term used to describe partially digested food in the stomach is ____.

Chyme

Which of the following is an inflammatory disorder that affects the eyes, skin, liver and intestines?

Crohn's disease

The stomach secretion that aids in vitamin B12 absorption is ____.

Intrinsic factor

The combination of villi and microvilli provides the small intestine with ____.

a large surface area for digestive functions

The large intestines perform all of the following functions EXCEPT ____.

absorption of nutrients

Which structure is the end of the digestive system?

anus

The region of the large intestine that shows immune system functions is the ____.

appendix

What is found within a small intestinal villus?

blood and lymph vessels

Stomach emptying is controlled by the secretion of ____.

cck

Which of the following is an early warning sign of colorectal cancer?

colon polyps


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