The walls of the GI tract are composed of _______ layers of tissue.
What is four?
100
Hydrochloric acid is released from cells in the:
What is the stomach?
100
The longest portion of the small intestine.
What is the jejunum?
100
The more common term for deglutition.
What is swallowing?
100
The structure that controls the opening of the stomach in to the small intestine.
What is the pyloric sphincter?
200
The substance that forms the outer covering of the neck and root of a tooth.
What is cementum?
200
The process of propeling food forward along the GI tract is ...
What is peristalsis?
200
The Krebs cycle takes place in the:
What is the mitochondria?
200
The preferred energy fuel of the body is:
What is glucose?
200
Which of the following is not a function of the liver?
- Detoxification
- Secretion of insulin
- Storage of iron and vitamins
- Carbohydrate metabolism
What is secretion of insulin?
300
Bile salts aid in the absorption of:
What are fats?
300
The hardest, most stable tissue in the body is the:
What is the enamel of the tooth?
300
The general term for inflammation or infection of the gums.
What is gingivitis?
300
A permanent set of teeth usually consists of _____ teeth.
What is 32?
300
The major final product that results from the digestion of carbohydrates is:
What is glucose?
400
Glucose moves from the GI tract into the circulatory system by the process of:
What is active transport?
400
The end products of protein digestion.
What are amino acids?
400
Which of the following is NOT an anatomical part of the small intestine?
- Duodenum
- Ileum
- Jejunum
- Cedum
What is the cecum?
400
The contents of the stomach are emptied into the:
What is the duodenum?
400
Amylases are found in saliva and in ___________ juices.
What is pancreatic?
500
Chewing and swallowing are both considered __________ digestion.
What is mechanical?
500
Polysaccharides are hydrolyzed to disaccharides by enzymes known as:
What is amylase?
500
The proper anatomical order for the divisions of the colon is:
What is ascending, transverse, descending, and sigmoid?
500
Which of the following is NOT a function of the pancreas?
- produces digestive enzymes
- secretion of insulin
- storage of iron and vitamins
What is secretion of insulin?
500
The major site for the absorption of the end products of digestion is the: