DIGESTIVE SYSTEM LAB Flashcards
consists of digestive tract or
gastrointestinal and specific
associated organs
digestive system
The specific portions of the digestive tract
a) oral cavity or mouth
b) pharynx or throat
c) esophagus
d) stomach
e) small intestine and large intestine
f) anus
The specific associated organs of the digestive tract
a) salivary glands
b) liver
c) pancreas
what are the processes of the mouth
- Mastication (chewing) of food
- Mixing masticated food with saliva
- Initiation of swallowing by the tongue
- Allowing for the sense of taste
not part of the digestive system
Nasopharynx
posterior to oral cavity
Oropharynx
below the oropharynx and connected to the esophagus
laryngopharynx
Runs from pharynx to stomach through
the diaphragm
esophagus
- Conducts food by peristalsis
(slow rhythmic squeezing) - Passageway for food only (respiratory
system branches off after the pharynx)
esophagus
where does the food enters?
at the cardio esophageal
sphincter
major site of digestion and absorption
small intestine
Site of nutrient absorption into the blood
small intestine
Muscular tube extending form the
pyloric sphincter to the ileocecal valve
small intestine
what are the subdivisions of the small intestine?
duodenum
jejunum
ileum
*Attached to the stomach and curves around the head of the pancreas
duodenum
Attaches anteriorly to the duodenum
jejunum
Extends from jejunum to large intestine
ileum
Larger in diameter, but shorter than the
small intestine and frames the internal abdomen
large intestine
the large intestine is consist of
- cecum
- colon
- rectum
- anal canal