Ch.24 A&PII

If an incision has to be made in the small intestine to remove an obstruction, the first layer of tissue to be cut into is the

submucosa

. Which of the following lists digestive organs in the order that food matter passes through them?

-oral cavity

-esophagus

-pharynx

-stomach

-cardiac sphincter

-peloric sphincter

-small intestine (all 3 parts)'

-colon

-rectum

Which organ fits the following description--inferior to the diaphragm, stomach and liver, and parallel to the pancreas?

-transverse colon

All segments of the gastrointestinal tract secrete:

-mucus

The function(s) of the large intestine is/are:

water absorption and elimination of solid waste products

Secretin (is):

-hormone produced by duodenum, small intestine stimulate pancreas to secrete sodium bicarbonate(purpose to increase pH)

The Sympathetic nervous system generally --1 -- digestive tract activity, parasympathetic neurons usually --2-- it.

inhibits, stimulates

The pancreas contains two types of glands, ninety-nine percent of its cells produce --1 -- secretions. These pass into a duct that empties into the --2 -- .

exocrine, duodenum

Which of the following takes place in the mouth?

All of the above

Gastrin, which is secreted by stomach cells, functions to:

-increase the secretions of the gastric glands

The stomach performs all of the following functions except:

segmentation, mastication, and deglutition

Hydrochloric acid in the stomach:

-activates pestanogin which is turns pepsinosine to pepsin

A villus consists of:

All of the above

The sphincter of Oddi:

-guards the exit of pancreatic duct common bile duct in duodenum

In their passage through the human digestive tract, proteins are first acted upon by enzymes in the

stomach

An organ of the digestive system that assumes a role in phagocytosis, manufacturing plasma proteins, detoxification and interconversion of nutrients is the:

-liver

Sympathetic innervation to the small intestine

-inhibition/slows down movement of GI tract

The esophagus

-connects stomach & pharynx

-collapsed muscular tube

The greater omentum is

a fatty sheet that hangs like an apron over the abdominal viscera

The middle portion of the small intestine is the

jejunum

The pylorus is:

-distal and inferior portion of the stomach

Digestive enzymes act specifically on the

particular chemical bonds between atoms of molecules

During swallowing, the major factor keeping food from entering the larynx and trachea is:

the closure of the glottis

Gastrin from the stomach functions to:

-increase the movement of the stomach smooth muscles

-increase the secretion of pepsinogion

-trying to get food out of the stomach

-stimulate cells, produces acids and pepsinosine

The intestinal microvilli are:

projections of the cell membrane that increase the cell's surface area

Cholecystokinin has what effect in the human body?

causes contractions of the gall bladder releasing bile

Bile:

is used to split up large fat globules into small globules

The ileum joins the colon at the:

cecum

The lowest ph(highest acidity) is found in the

-lowest: inside stomach

-highest: in gall bladder

Which one of the following is N0T a function of HCl?

protects the gastric mucosa from auto-digestion

Which of the following is N0T a characteristic of the colon?

serves as the main absorptive surface for digested foods

Most of the water absorbed during digestion, along with amino acids, simple sugars and some fatty acids, is absorbed in the:

illeum

Which of the following enzymes is not made in the pancreas?

-succuratides such as sucrase, lactase and maltase

Which of the following contains no digestive enzymes?

bile

Secretion of which gastrointestinal hormone causes contraction of the gallbladder?

-CCK (cholecystokinin)

Inflammation of the abdominal serosa is known as:

-peritonitis

The major salivary glands

there is 3

-behind master is parotid

-sublingual

-submandibular (produces most of the saliva

Gastric protease is activated by:

-mostly done by pepsin (pepsonogin)

digestion of something is started:

-in small instestine