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62 terms

#4; Chap. 25; pt. 1

STUDY
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The digestive tract is also known as what?
Alimentary Canal
____- 30 foot long muscular tube extending from the mouth to anus
Digestive Tract
____ is the stomach & intestines.
Gastrointestinal (GI) Tract
This layer of the GI tract thickens to form valves that regulate the passage of material through the tract.
Inner Circular
Valves in the inner circular layer of the GI tract that regulate the passage of material through the tract is called what?
Sphincters
This layer of the GI tract is responsible for the motility that propels food & residue through the tract.
Outer Longitudinal
____- connective tissue sheets that loosely suspend the stomach & intestines from the abdominal wall
Mesenteries
____- a serous membrane that lines the wall of the abdominal cavity
Parietal Peritoneum
What forms the dorsal mesentery?
Parietal Peritoneum
The parietal peritoneum forms what?
Dorsal Mesentery
____- a ventral mesentery that extends from the lesser curvature of the stomach to the liver
Lesser Omentum
____- hangs from the greater curvature of the stomach
Greater Omentum
In the mouth, the ____ is the anterior opening between the lips.
Oral Fissure
In the mouth, the ____ is the posterior opening to the throat.
Fauces
____- median fold that attaches each lip to the gum between the anterior incisors
Labial Frenulum
____- the space between cheek or lips & the teeth
Vestibule
____- serous & mucous glands amid the extrinsic muscles
Lingual Glands
____ secretes a portion of the saliva.
Lingual Glands
____- contained in the root of the tongue
Lingual Tonsils
____- separates the oral cavity from the nasal cavity
Palate
____- anterior portion that is supported by the palatine processes of the maxillae & the palatine bones
Hard (Bony) Palate
____- posterior portion of the mouth with a more spongy texture
Soft Palate
_____- conical medial projection visible at the rear of the mouth
Uvula
____ are located on the wall between the arches.
Palatine Tonsils
How many adult teeth do you have?
32
How many deciduous (baby) teeth do you have?
20
____- anchors tooth firmly in alveolus
Periodontal Ligament
____- covers the alveolar bone
Gingiva (Gum)
____- small glands dispersed amid other oral tissues
Intrinsic Salivary Glands
This intrinsic salivary gland is in the tongue and produces lingual lipase.
Lingual Glands
Name the Intrinsic salivary glands.
Lingual, Labial, & Buccal Glands
_____- three pair connected to oral cavity by ducts
Extrinsic Salivary Glands
This type of extrinsic salivary gland is located beneath the skin anterior to the ear lobe.
Parotid Glands
This type of extrinsic salivary gland is located halfway along the body of the mandible.
Submandibular Glands
This type of extrinsic salivary gland is located in the floor of the mouth.
Sublingual Glands
Name the extrinsic salivary glands.
Parotid, Submandibular, Sublingual Glands
_____- a muscular funnel that connects oral cavity to esophagus & allows entrance of air from nasal cavity to larynx
Pharynx
____- a straight muscular tube that begins at the level between C6 & the cricoid cartilage
Esophagus
The esophagus starts at what level?
C6 & The Cricoid Cartilage
____ extends from pharynx to cardiac orifice of stomach passing through esophageal hiatus in diaphragm
Esophagus
____- food pauses at this point because of this contriction
Lower Esophageal Sphincter
____ in the submucosa secrete mucus.
Esophageal Glands
Esophageal glands in the submucosa secrete what?
Mucus
____- a muscular sac in upper left abdominal cavity immediately inferior to the diaphragm
Stomach
The stomach primarily functions as what?
Food Storage
____ has an internal volume of about 50 mL when empty.
Stomach
The ____ has 1.0 - 1.5 L after a typical meal.
Stomach
The stomach mechanically breaks up food particles, liquefies the food, & begins chemical digestion of ____ & fat.
Protein
____- soupy or pasty mixture of semi-digested food in the stomach
Chyme
____- J-shaped muscular organ with lesser & greater curvatures
Stomach
This region of the stomach is a small area within about 3 cm of the cardiac orifice.
Cardiac Region (Cardia)
This region of the stomach is a dome-shaped portion superior to esophageal attachment.
Fundic Region (Fundus)
This region of the stomach makes up the greatest part of the stomach.
Body (Corpus)
This region of the stomach is the narrower pouch at the inferior end.
Pyloric Region
____- narrow passage to duodenum
Pylorus
_____- regulates the passage of chyme into the duodenum
Pyloric Sphincter
The ____ is simple epithelium that covers the mucosa.
Stomach
Apical regions in the mucosa of its surface cells are filled with ____.
Mucin
____- depressions in gastric mucosa
Gastric Pits
What type of glands are in the cardiac region?
Cardiac Glands
What type of glands are in the pyloric region?
Pyloric Glands
What type of glands are in the rest of the stomach besides the cardiac & pyloric region?
Gastric Glands