The Digestive System Flashcards
(36 cards)
The majority of the epithelium in the digestive tract is made of ______ __________ epithelial cells.
simple columnar.
Which parts of the digestive system are stratified squamous epithelial cells found in?
Oral cavity, esophagus & anus.
Lamina propria is a thin layer of:
loose connective tissue.
The muscularis mucosa is a thin layer of ______ ______ for _______.
smooth muscle; folding.
What is the submucosa?
Loose connective tissue containing blood vessels, glands & lymphatic tissues.
What is Meissner’s plexus has a _______ function.
sensory.
Which structures in the digestive tract are under voluntary control?
Mouth, pharynx, upper esophagus & anus.
Meissner’s plexus is responsible for sympathetic & parasympathetic innervation of:
smooth muscle layers.
What are the 2 types of smooth muscle fibres found in the digestive system?
Inner circular fibres & outer longitudinal fibres.
Where is the Auerbach’s plexus located?
The muscularis.
Where is Meissner’s plexus located?
The submucosa.
The peritoneum secretes a slippery fluid called:
transudate.
What are mesenteries?
Fused double sheets of peritoneal membrane.
What are the 2 functions of mesenteries?
Stabilize the position of organs & blood vessels.
Provide attachment for blood vessels going to & from the small intestine.
The mesentery proper suspends everything but the:
duodenum.
The transverse mesocolon is attached to the:
transverse colon.
The lesser omentum is the mesentery between the:
stomach & liver.
The greater omentum extends from the _______ & covers the rest of the abdominal organs on the ________ surface.
stomach; anterior.
The lips & cheeks contain the ___________ muscle.
buccinator.
Which structures make up the roof of the oral cavity?
Hard palate, soft palate & uvula.
What structure makes up the floor of the oral cavity?
The tongue.
Describe the 3 salivary glands that have ducts emptying into the oral cavity.
Parotid glands: anterior & inferior to the ear (partially overlying the masseter muscle).
Submandibular glands: inferior to the body of the mandible.
Sublingual glands: inferior to the tongue.
Describe the located of the esophagus relative to the vertebrae, trachea & diaphragm.
In front of (anterior to) vertebrae.
Posterior to trachea.
Pierces the diaphragm at the hiatus.
The submucosa of the esophagus is composed of:
large mucous glands.
