LESSON 10 PART 1 Flashcards
the two main groups of the digestive system?
Alimentary canal and accessory digestive organs
performs the whole menu of digestive functions as it propels the foodstuffs along its tract.
Alimentary canal
what are the functions of the alimentary canal?
ingests, digests, absorbs, defecates
assist the process of digestive break down in various ways.
accessory digestive organs
what are the accessory digestive organs?
teeth, tongue and several large digestive glands
what are the organs of the alimentary canal?
mouth, pharynx, esophagus, stomach, small and large intestines
what is the alimentary canal other name?
Gastrointestinal tract or gut
A continuous, coiled hollow muscular tube that winds
throughout the ventral body cavity from stomach to anus.
alimentary canal
in a cadaver the alimentary canal is apporximately _________. However in a living person it is ________ due to its _________.
9 meters or 30 ft long, shorter, muscle tone
what are the parts of the mouth?
lips/labia, cheeks, hard palate,Soft palate, Vestibule, Oral Cavity proper, Muscular tongue, Tongue , Lingual Frenulum
First organ ; A mucous membrane-lined cavity.
mouth
this is where the food enters the digestive tract through the mouth or oral cavity?
mouth
forms its posterior roof of the mouth
soft palate
Space between the lips and cheeks externally at the teeth
and gums internally
vestibule
form its lateral walls of the mouth
cheeks
forms its anterior roof of the mouth
hard palate
protects its anterior opening of the mouth
lips/labia
the area contained by the teeth of the mouth
oral cavity proper
occupies the floor of the mouth
muscular tongue
it is attached with several bony attachments namely hyoid bone and styloid processes of the skull
tongue
Fold of mucous membrane that secures the tongue to the floor of the mouth and limits its posterior movements.
lingual frenulum
what are the two bones attached by the mouth?
hyoid bone and styloid processes of the skull
from the mouth this is where the food passes posteriorly
pharynx
from the mouth this is where the food passes posteriorly. and it will pass to the?
oropharynx and laryngopharynx
both of which are common passageways for food, fluids, and air.
oropharynx and laryngopharynx
the pharynx is subdivided into?
nasopharynx, oropharynx and laryngopharynx
it is posterior to the oral cavity of the pahrynx
oropharynx
continuous with the esophagus below of the pharynx
laryngopharynx
part of the respiratory passageway of the pharynx
nasopharynx
the walls of the pharynx contains _______ skeletal muscle layers?
two
the cells of the pharynx of the inner layer run _________, outer layer runs ____________
longitudinally, circular fashion
esophagus is aka?
gullet
runs from the pharynx through the diaphragm to the
stomach.
gullet
size of the esophagus?
25 cm or 10 inches long
Essentially a passageway that conducts food by peristalsis to
the stomach.
esophagus