Ch 11 review
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
