Unit 3 - Digestive System, Randoms 2 Flashcards
In the mouth, what is the uvula?
Hangs at the back of the soft palate & aids in production of speech & sound.
Which tonsils are affected in tonsilitis?
palatine tonsils
Where are the pharyngeal tonsils or adenoids located?
In the space behind the nose.
Where are the lingual tonsils located?
On the back third of the tongue.
Where are the palatine tonsils located?
on both sides of the oropharynx. These are the tonsils affected by tonsilitis.
The tongue is composed of which muscle?
skeletal (voluntary) muscle tissue.
What does FDI stand for?
Federation Dentaire International
What is the muscular tube which swallows food from mouth & pushes into the oesophagus?
pharynx (also called throat)
The …… allows air to pass from the nose & mouth to the trachea.
pharynx
During swallowing, the …. covers the larynx blocking access to the trachea & allowing food to pass to the oesophagus.
epiglottis. (it is a large piece of cartilage)
The pharynx is made up of three parts - one starts with “n”.
Nasopharynx - behind the nasal cavity.
The pharynx is made up of three parts - one starts with “o”.
Oropharynx - behind the oral cavity
The pharynx is made up of three parts - one starts with “L”.
laryngopharynx - also known as the hypopharynx - connects to the larynx & the oesophagus.
What is the long muscular tube which conveys food to the stomach using peristalsis?
oesophagus (commonly called the gullet)
At the upper end of the oesophagus is the …….. (2 words) sphincter which opens upon swallowing to allow food to move into the oesophagus.
upper oesophageal sphincter
At the lower end of the oesophagus is the …… (2 words) sphincter which opens to allow the food bolus to pass into the stomach & closes preventing backflow.
lower oesophageal sphincter (cardiac sphincter)
What is the name of mucous membrane that secretes mucus?
mucosa
What is the name of the layer of fibrous connective tissue under the mucosa?
submucosa
What is the name of the muscular layer?
muscularis
What is the name of the serous membrane that secretes serous fluid?
serosa
The stomach is lined with natural folds called …… that allow the stomach to distend when full of food.
rugae (singular ruga)
What is the top portion of the stomach below the lower oesophageal sphincter called?
Cardia.
What is the temporary storage area in the stomach called?
fundus - swallowed air often fills this area.
In the stomach what is the name of the reservoir for ingested food & area of action of the gastric juices digesting food into proteins.
Body or corpus
The end product of the digestive process in the stomach (body of) is called?
chyme. a mix of broken down food bolus mixed with gastric juices.
What is the lower end of the stomach called?
Pylorus. sometimes referred to as the pyloric region. Pylorus comes from the greek word meaning gate keeper.
Name of the canal where chyme is held to be released into the duodenum when the duo. is ready to accept it.
pyloric canal.
Name of the muscular ring enclosing the pylorus that relaxes to allow chyme to move thru into duodenum in small amounts.
pyloric schincter (also sometimes referred to as the pylorus)
