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List the organs of the digestive tract:
- large intestine
- anus
- mouth
- oral cavity
- teeth
- tongue
- pharynx
- esohague 
- stomach
- small intestine
What are the 4 accessory organs of digestion?
- sallivary gland
- liver
- gallbladder
- pancreas
The lamina propria and mucous epithelium are components of the ____________ layer.
mucosa
The _________ coordinates activity of the muscularis externa.
myenteric plexus
Contraction of the __________ alters the shape of the intestinal lumen and moves epithelial pleats and folds.
muscularis mucosa
The __________ are double sheets of peritoneal membrane that suspend the visceral organs and carry nerves, lymphatics, and blood vessels.
mesenteries
Sensory nerve cells, parasympathetic ganglia, and sympathetic postganglionic fibers can be found in the _________ plexus.
submucosal
Sandwiched between the layer of circular and longitudial muscle in the muscularis externa is the __________________.
myenteric plexus
The _________ layer of the digestive tract has a dense irregular connective tissue that surrounds the muscularis mucosae.
submucosa
The __________ layer of the digestive tract is classified as being either squamous or columnar.
mucosa
Large blood vessels and lymphatics are found in the ________.
submucosa
The layer of loose connective tissue that directly supports the digestive epithelium is the ___________________.
lamina propia
The _________ plexus includes a sensory neural network.
submucosal
The oral mucosa has ______________ epithelium.
stratified squamous
List areas where stratified squamous epithelial lining can be found in the digestive tract.
- oral cavity
- pharynx
- espohagus
A disease that attacks and disables the myenteric plexus would ________ intestinal motility.
decrease
The circumferential folds that encircle the luman of the small intestine are known as _________.
plicae
In the digestive system and urinary systems, rings of smooth muscle, called _______, regulate the movement of materials along internal passageways.
sphincters
The ability to function over a wide range of lengths is called ______.
plasticity
Which type of muscle cells are arranged in sheets or layers, with adjacent muscle cells electrically connected by gap junctions and mechanically connected by dense bodies?
visceral smooth muscle cells
Which cells are innervated in motor units comparable to those of skeletal muscles, but each smooth muscle cell may be connected to more than one motor neuron?
multi-unit smooth muscle cells
Whenever one muscle cell contracts, the stimulus for contraction speads in a wave throughout the layer, which is which muscle cells?
visceral smooth muscle cells
__________________ is loctated in the iris of the eye, where it regulates the diameter of the pupil; along portions of the male tract; within walls of large arteries; and in the arrector pilli muscles of the skin.
mutil-unit smooth muscle tissue
_____________________ is located in the walls of the digestive system, the gallbladder, the urinary nd many other internal organs.
visceral smooth muscle cells
Waves of muscular contractions that propel the contents of the digestive tract are called __________.
peristalsis
The activities of the digestive system are regulated by hormones, _________________ and _______________ neurons, the contents of the digestive tract, and the intrinsic nerve ___________.
parasympathetic; sympathetic; ?
The functions of the digestive system include:
- ingestion
- mechanical processing
- digestion
- secretion
- absorption
-compaction
_________ occurs when food and liquids enter the digestion tract via the mouth.
ingestion
________ occurs to most ingested solids either before they are swallowed or in the proximal portions of the digestive tract.
mechanical processing
_______ is the chemical and enzymatic breakdown of food into small organic molecules that can be aborbed by the digestive epithelium.
digestion
_________ is performed along most of the digestive tract (however, most of the acids, enzymes, and buffers required for digestion are provided by the accessory digestive organs).
secretion
_________ is the movement of organic molecules, electrolytes, vitamins, and water across the digestive epithelium and into interstial fluid of the digestive tract.
absorption
__________ is the progressive dehydration of indigestible material and organic wastes prior to elimination from the body.
compaction
__________ is the compacted material that results from compaction.
feces
__________ is the elimination of feces from the body.
defecation
A structure that helps prevent food from entering the pharynx prematurely is the _________.
uvula
What are the functions of the tongue?
- manipulate materials in mouth
- occasionally be used to bring foods into oral cavity
- speech
- taste
- forming boluses
- moving food for swallowing
_____ pair(s) of salivary glands secrete into the oral cavity.
3
The roof of the oral cavity is formed by the ____ and ____ palate.
hard; soft
The space between the cheeks or lips and the teeth is called the _______.
vestibule
The ridge of the oral mucosa that surrounds the base of a tooth is the ________.
gingivae
Carbohydrate digestion begins in the _________.
mouth
The connection of the anterior portion of the tongue to the underlying epithelium is the ____________.
lingual frenulum
The uvula is located at the posterior margin of the _______________.
soft palate
What are the functions of the oral cavity?
- mechanical processing
- moistening
- mixing with salivary secretions
The dorsal surface of the tongue is covered with _________.
lingual papillae
True or False?

The tongue is composed of muscles.

TRUE
The _____________ attaches the ventral surface of the tongue to the floor of the oral cavity.
The tongue secretes lingual _______.
lipase
The bulk of each tooth consists of a mineralized matrix to that of a bone called ___________.
dentin
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