Topic 8 Digestive System and Nutrition
What type of hepatitis is usually transmitted through blood transfusions or sexual contact?
B
A diet rich in which vitamins may reduce the risk of free radicals that can cause health problems?
C, E, and A
Which of the following is a digestive hormone that causes the gallbladder to release stored bile?
CCK
What is the relationship between Crohn's disease and inflammatory bowel disease?
Crohn's disease is one of the most common inflammatory bowel diseases.
Today, obesity is often defined as having a body mass index (BMI) of 20 or greater.
False
The gallbladder produces bile.
False- the Liver does
Which of the following is a function of the liver?
It helps regulate blood cholesterol levels.
Why is the pancreas both an endocrine and an exocrine gland?
It secretes pancreatic juice through the pancreatic duct and insulin into the blood.
Why is it necessary to include some carbohydrates in the diet?
The carbohydrate cellulose (fiber) is essential for good health.
What is one benefit of normal flora in the large intestine?
They produce vitamin B.
Swallowing consists of both a voluntary phase and a reflex action.
True
The stomach is bounded on both ends by a sphincter.
True
The stomach produces a hormone that acts on the stomach through positive feedback.
True
Which vitamin is fat soluble?
Vitamin A, D, E, K
Chad was concerned about eating foods with a high glycemic index because these foods can cause
a rapid increase in blood glucose.
Which of the enzyme-substrate pairings is correct?
amylase-starch
Dental caries are caused by
bacteria within the mouth metabolizing sugar
According to the body mass index (BMI) chart, a healthy BMI is
between 18.5 and 24.9.
What serves as an emulsifying agent for fats in the small intestine?
bile
Which of the following is necessary for strong bones and teeth, nerve conduction, muscle contraction, and blood clotting?
calcium
Today, physicians and dentists are concerned that gum disease is linked to ________.
cardiovascular disease
The portions of the large intestine include the
cecum, colon, rectum, and anus.
The thick, soupy liquid of partially digested food that leaves the stomach is called
chyme.
What are the main symptoms of lactose intolerance?
diarrhea and bloating
A deficiency in which mineral leads to thyroid deficiency?
iodine
The small lymphatic capillaries that reside in the small intestine and absorb fats are known as
lacteals.
A serious genetic disorder known as hemochromatosis is often called the rusty organ disease and affects nearly 1.5 million Americans. The disorder causes increased absorption of intestinal iron. Which organ is responsible for iron homeostasis?
liver
Which of the following is associated with the small intestine?
many villi
What is the correct order of the components of the digestive tract?
mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, anus
The layers of the gastrointestinal tract wall from the inside layer outward in order are
mucosa, submucosa, muscularis, serosa.
Which accessory organ of the digestive system processes and stores nutrients, as well as produces bile for emulsification? Group of answer choices
pancreas
The process that pushes food through the esophagus is called
peristalsis.
The process of mechanical digestion includes
physically making food smaller and easier to handle and the churning of food in the muscular stomach.
Small growths arising from the epithelial lining of the colon are called
polyps.
Which of the following is considered to be an accessory organ of the digestive system?
small intestine
Which of the following is produced by the pancreas?
sodium bicarbonate
Pepsin is an enzyme that digests proteins at acidic pH. Therefore, it must act in the
stomach.
The primary function of the stomach is to
store food, churn, and begin digestion.
The broad band of loose connective tissue beneath the mucosa that contains blood vessels, lymph, and nerves is called the Group of answer choices
submucosa.
Which of the following is a function of the digestive system?
to absorb nutrient molecules
Which of the following is NOT a function of the digestive system?
to deliver oxygen to the body's tissues
What is the major function of the colon?
to form feces
Which of the following will reduce dietary lipids?
using lemon instead of salad dressing
The fleshy extension of the soft palate is known as the
uvula.
About 90% of people suffering from anorexia nervosa are
young women