Lab 4 Connect - Digestive System, Part 1Assignment
incisors role in food
Bite off pieces of food
What are the gastric rugae?
Longitudinal folds in the stomach lining
Which salivary gland is located just beneath the skin anterior to the earlobe?
Parotid
Which mesentery either hangs freely in the abdominal cavity or attaches to the the anterior abdominal wall?
Ventral
Submucosa
What is this layer of the digestive tract wall
muscularis mucosae
What is this muscle layer
lingual frenulum
What is this structure
The portion of the stomach between the fundus and the pyloric region is known as the ________
body
What is the largest portion of the stomach?
body
Another name for the oral cavity is the ______ cavity.
buccal
The region of the stomach where the esophagus enters is the ______ region.
cardiac
What is the living connective tissue covering the root of a tooth called?
cementum
The soupy mixture of semidigested food formed in the stomach is known as
chyme
Collectively, the teeth are known as the ________
dentition
The hard noncellular substance that covers the crown of a tooth is ______.
enamel
___________ nervous system is comprised of the submucosal and myenteric plexuses.
enteric
What are lingual papillae?
epithelial projections on tongue
The pharynx connects the oral cavity to the ______ and the nasal cavity to the ______.
esophagus, larynx
True or false: Enamel covers the surface of the crown and the root of each tooth.
false
The bile duct is embedded in the ______ omentum
lesser
The mesentery that extends from the liver to the lesser curvature of the stomach is the __________ omentum.
lesser
The sheets of connective tissue that hold the abdominal viscera in place are called
mesenteries
Of the four tissue layers lining the lumen of the alimentary canal, the innermost tissue layer is called the ______.
mucosa
Which is found within the pulp of teeth?
nerves, blood and lymphatic vessels, loose connective tissue
Within alveoli, collagen fibers called the ________ ligament penetrate the bone on one side and the tooth on the other side.
peridontal
When swallowing, a bolus of food moves from the mouth directly into the _________ before reaching the esophagus.
pharynx
crown of tooth
portion of tooth above the gum
root of tooth
portion of tooth below gum
The pulp of a tooth is found within the ______ cavity
pulp
What is the root canal of a tooth filled with?
pulp
the __________ of a tooth is comprised of loose connective tissue, blood vessels, lymphatic vessels, and nerves.
pulp
The muscular band that regulates the passage of chyme from the stomach to the duodenum is the ___________ sphincter
pyloric
function of mesenteries
-provide passage for nerves -hold abdominal viscera in place -provide passage for blood vessels
serosa
Layer of digestive tract wall is
Which describes a periodontal ligament?
Collagen fibers that hold a tooth in place
premolars and molars role in food
Crush and grind food
Which mesentery extends from the midline of the posterior abdominal wall to the digestive tract?
Dorsal
Which is an example of a retroperitoneal organ?
Duodenum
What is the network of nervous tissue within the wall of the alimentary canal called?
Enteric nervous system
Which describes the fundus of the stomach?
It is the domed superior region.
canines role in food
Puncture and shred food
Which muscular band regulates the passage of chyme from the stomach to the duodenum?
Pyloric sphincter
muscularis externa
The histological layer of smooth muscle here is ______
Which describes the greater curvature of the stomach?
The lateral inferior margin from esophagus to duodenum
Which describes the lesser curvature of the stomach?
The medial superior margin from esophagus to duodenum
The mesentery that extends from the greater curvature of the stomach and loosely hangs over the small intestine like an apron is the _________ omentum.
greater
A structure that is located against the posterior body wall and only covered with peritoneum on its anterior side is said to be what?
retroperitoneal
What is the posterior third of the tongue known as?
root
The longitudinal wrinkles in the lining of the stomach are called gastric ________
rugae
What is the outermost layer of the digestive tract wall?
serosa
The salivary glands located in the floor of the mouth just under the tongue are the __________ salivary glands
sublingual
The salivary gland located halfway along the body of the mandible, medial to its margin, is the ___________ salivary gland
submandibular
What is the conical projection that extends from posterior margin of the soft palate called?
uvula
neck of tooth
where crown, gum and root meet