Functions of the GI Tract
Process of producing and releasing fluid products facilitating digestion
What is secretion?
This layer lines inside surface of abdominal wall.
What is the parietal peritoneum?
These receptors detect stretch or pressure in GI tract as contents moves through
What are baroreceptors?
Bolus is transported from pharynx into stomach through this organ.
What is the esophagus ?
This type of digestion involves specific enzymes to break chemical bonds and change large complex molecules into smaller molecules
What is chemical digestion
The layer of the GI tract that includes Peyer patches
Organs completely surrounded by visceral peritoneum
What are intraperitoneal organs ?
These receptors detect specific substances of passing contents within the lumen
What are chemoreceptors ?
Chyme is formed in this organ
Transport of digested molecules, electrolytes, vitamins, water and movement from GI tract into blood or lymph
What is absorption
The innermost layer of the GI Tract
What is the Mucosa ?
Serous membrane reflecting over and covering the internal organs’ surface
What is the visceral peritoneum ?
These three primary hormones participate in regulation of digestion
What are Gastrin, Secretin, and Cholecystokinin?
The introduction of solid and liquid nutrients into the oral cavity. This is the first step in process of digesting and absorbing nutrients
What is ingestion ?
The layer of the GI tract responsible for peristalsis
Potential space between the parietal peritoneum and the visceral peritoneum layers
What is the peritoneal cavity ?
Autonomic motor output for the GI trace is relayed through these 3 cranial nerves.
What is facial, glossopharyngeal, vagus?
Inferior region of the esophagus connecting to the stomach .
This type of digestion involves material physically broken down by chewing and mixing
What is Mechanical digestion?
The outermost layer of the GI tract in areas found outside the peritoneal cavity
What is the Adventitia ?
These organs lie directly against posterior abdominal wall. Only anterolateral portions are covered with peritoneum
What are retroperitoneal organs ?
Receptors that monitor changes associated with GI tract and contents are embedded throughout these 2 layers of the GI tract
What are the mucosa and submucosa?
The amount of saliva on that is secreted daily.
What is 1.0–1.5 L?