Question Answer
The two main functions of the digestive system are digestion and Absorption
The innermost layer of the gastrointestinal tract is a mucous membrane known as the Mucosa
The major type of muscle in the gastrointestinal tract is Smooth
The outer layer of the gastrointestinal tract is known as the serous layer or Serosa
The major portion of the mouth consists of a chamber known as the Oral cavity
On either side of the tongue within the tongue papillae are a series of Taste buds
In a permanent set of teeth the full number is Thirty-two
The three basic regions of a tooth include the crown the neck and the Roots
Within the cheek of the head below the ears is the largest salivary gland known as the Parotid
The lymphatic tissues located on the soft palate are called Tonsils
Food passes into the stomach from the pharynx to a tube known as the Esophagus
Swallowing is a process more correctly known as Deglutition
The series of wave-like contractions that brings food into the stomach is called Peristalsis
The circular smooth muscle at the beginning of the stomach is the lower esophageal or cardiac sphincter while the circular smooth muscle at the end of the stomach is the Pyloric sphincter
The narrow far region of the stomach is the Pylorus
The most important acid for digestion taking place in the stomach is Hydrochloric acid
In the stomach food is converted to a soupy mixture known as Chyme
A variety of enzymes and enters the duodenum from a large gland known as the Pancreas
Before fats can be digested into their component fatty acids they must be broken into smaller globules by the liver substance called Bile acids
The second part of the small intestine and the place where most absorption occurs is the Jejunum
The short worm-like extension of tissue found near where the small and large intestines meet is called the Appendix
The last few inches of the colon that terminates at the anus is the Rectum
The major function of the large intestine is to reabsorb ions and Water
The largest gland in the body and source of bile is the Liver
For using the digestive process bile is stored in a sac called the Gallbladder
Chapter 18

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