mastering A&P ch.22 group 3 modules 22.15-22.24

What is the correct sequence of parts in the colon moving from the small intestine to the anus? Cecum; transverse colon; ascending colon; descending colon; sigmoid colon; rectum Cecum; descending colon; transverse colon; ascending colon; rectum Ascending colon; descending colon sigmoid colon; transverse colon; cecum; rectum Cecum; ascending colon; transverse colon; descending colon; sigmoid colon; rectum

Cecum; ascending colon; transverse colon; descending colon; sigmoid colon; rectum

In the oral cavity, the digestive enzyme __________ is found in saliva and begins the digestion of __________. pepsin; proteins lipase; proteins trypsin; proteins amylase; starch

amylase; starch

The small, slender structure that is attached to the large intestine and is suffused with lymphoid nodules is the __________. taenia coli cecum appendix ileum

appendix

which of the following is NOT a region of the small intestine? jejunum cecum ileum duodenum

cecum

If you put marbles in your mouth, which cranial nerve monitors receptors that detect their presence and causes the salivary reflex? cranial nerve V cranial nerve I cranial nerve II cranial nerve IV

cranial nerve V

The reflex that occurs in the large intestine and promotes the movement of feces toward the anus is the __________. cephalic reflex defecation reflex micturition reflex haustral reflex

defecation reflex

what is the main stimulus that triggers the defecation reflex? material passed into the cecum chemical composition of the feces distension of the rectum sympathetic stimulation

distention of the rectum

The bile duct and the pancreatic duct both enter the duodenum at the _____________. portal triad central vein duodenal papilla bile canaliculi

duodenal papilla

there are some obvious bends in the colon that you don't see in the small intestine. What are the names of these bends? haustra flexures taenia coli villi

flexures

Which of the following causes an immediate increase in the rates of glandular secretion and peristaltic activity in all segments of the small intestine? enterogastric reflex gastroileal reflex gastroenteric reflex the presence of intestinal juices

gastroenteric reflex

What are the pouches that give the colon its typical appearance? rugae pilcae circulares flexures haustra

haustra

When two fluids are separated by a selectively permeable membrane, water tends to flow into the fluid that has the __________. lower concentration of solutes proper osmotic equilibrium higher concentration of solutes same osmolarity on each side of the membrane

higher concentration of solutes

which of the following is NOT a function of saliva? helping clean oral surfaces producing amylase increasing dental caries moistening food

increasing dental caries

which of the following produces, on a daily basis, the least number of the peristaltic contractions that force food through the digestive tract? stomach small intestine large intestine esophagus

large intestine

why is diarrhea potentially life threatening? loss of vital nutrients loss of vitamins loss of water and electrolytes loss of bicarbonate ions

loss of water and electrolytes

which of the following does NOT digest proteins? nuclease pepsin trypsin enteropeptidase

nuclease

which of the following does NOT digest carbohydrates? sucrase lactase pancreatic lipase pancreatic alpha-amylase

pancreatic lipase

Which of the following is not true of the parotid glands? The largest of the salivary glands Secretions empty along the lingual frenulum Produce a serous secretion rich in amylase Extend from the mastoid process across the outer surface of the masseter

secretions empty along the lingual frenulum

Which of the following are NOT absorbed in the large intestine? water certain vitamins such as vitamin K organic wastes such as urobilinogens all of the listed substances are absorbed in the large intestine

all of the listed substances are absorbed in the large intestine

What is the average composition of fecal waste material? 60 percent water, 10 percent bacteria, and 30 percent indigestible and inorganic matter 75 percent water, 5 percent bacteria, and 20 percent indigestible materials, inorganic matter, and epithelial remains 45 percent water, 45 percent indigestible and inorganic matter, and 10 percent bacteria 20 percent water, 5 percent bacteria, and 75 percent indigestible remains and inorganic matter

75 percent water, 5 percent bacteria, and 20 percent indigestible materials, inorganic matter, and epithelial remains

How does the mucosa of the rectum compare with that of the colon and the cecum? The colon and the cecum are lined with a simple columnar epithelium, whereas the rectum is lined with a stratified columnar epithelium. The colon and the cecum are lined with a simple columnar epithelium for absorption, whereas the rectum is lined with a stratified squamous epithelium because the rectum is next to the opening to the exterior of the body. The colon and the cecum are lined with a simple cuboidal epithelium for absorption, whereas the rectum is lined with a transitional epithelium, which allows for expansion during defecation. The epithelial lining is constant throughout the large intestine.

The colon and the cecum are lined with a simple columnar epithelium for absorption, whereas the rectum is lined with a stratified squamous epithelium because the rectum is next to the opening to the exterior of the body.

The two positive-feedback loops involved in the defecation reflex are __________. the internal and the external sphincter muscles mass movements and peristaltic contractions the stretch receptors in the rectal walls and the sacral parasympathetic system the anal canal and the anal columns

the stretch receptors in the rectal walls and the sacral parasympathetic system

what is perhaps the most important function of the large intestine? water reabsorption digestion nutrient absorption storage

water reabsorption