The _____________ layer of the alimentary canal contains loose connective tissue, glands, blood and lymphatic vessels, and nerves.
Activities of the digestive system are generally increased by _________________ nervous stimulation.
The purpose of the soft palate is to __________________.
|A)||house extra taste buds|
|B)||sense temperature of food before it is swallowed|
|C)||produce saliva and enzymatic secretions|
|D)||close off the nasal cavity during swallowing|
Compared to the others listed below, which type of tooth is more likely to be involved in grinding food?
What mouth part helps to mix food with saliva, moves food toward the pharynx for swallowing, and houses taste receptor cells?
Which salivary glands produce the most viscous saliva with lots of mucus?
What initiates the swallowing reflex?
|A)||fear of choking on food|
|B)||the tongue rolling the bolus to the pharynx|
|C)||sensory receptors detecting the bolus in the pharynx|
|D)||secretion of saliva at the thought of food|
The main part of the stomach is the _______________ of the stomach.
Intrinsic factor is secreted by which cells of the gastric glands?
During which stage of gastric secretion do gastric glands actually begin secreting gastric juice?
The pancreas secretes enzymes that enter the small intestine and chemically digest chyme. Choose the enzyme(s) that break(s) down fats.
What hormone does the small intestine release in response to acidic chyme?
What is the primary purpose of the liver in aiding digestion?
|A)||produces digestive enzymes|
|B)||produces alkaline solution to neutralize stomach acidity|
|C)||produces bile to emulsify fats in the small intestine|
|D)||produces substances that aid the large intestine in water absorption|
How are the components of fats absorbed in the small intestine?
|A)||Specific receptor proteins carry fatty acids across the intestinal wall and into the bloodstream.|
|B)||Fatty acids are transported by active transport to the bloodstream.|
|C)||Components of lipids diffuse through small intestinal cell membranes, are reconstructed in the cells, then carried off by lacteals as chylomicrons.|
|D)||Components of lipids diffuse through small intestinal cell membranes and into the bloodstream where they are carried to the liver for processing.|
What is the primary function of the large intestine?
|A)||to complete the absorption of most nutrients|
|B)||to house gas-producing bacteria|
|C)||to rid the body of toxins|
|D)||to compact, store, and eliminate feces|
Where does the greatest amount of digestion occur?
Which term does not belong with the others?
Which gland is closest to the joint between the mandible and temporal bone?
The portion of a tooth below the gums is the _____.
The enzyme salivary amylase begins to digest which molecules?
Where are the palatine tonsils located?
The surface area of the stomach is enhanced by the presence of folds called _____.
Where would the least amount of bacteria be found?
What normally holds the intestines in position within the abdominal cavity?
What does the pancreatic duct directly join to?
Which of these does not directly promote the hydrolysis of food?
The outer layer of the intestines is the ____
Where are the lacteals located?
Which structure does the appendix come off of?
Which vitamin is mainly formed by Escherichia coli?