Proximal GI (Mouth to Stomach)
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30 Terms
Body Cavities
Thoraic, Pelvic, Abdominal
Oral Cavity
Lip, teeth, cheeks, tongue, hard and soft palate
Lips
Prehension: act of grasping food with mouth
very sensitive
whiskers help
hard palate
roof of the mouth
palatine ridges (rugal folds)
Cleft Palate
Abnormal development of hard palate during pregnancy
palatine bones don’t fuse
Soft Palate
Back of the mouth
soft tissue
NO BONE
Clinical significance: Soft Palate
elongated soft palate
pugs and bulldogs
Clinical significance: Soft Palate Horses
Dorsal displacement of the soft palate
Tongue
Latin: lingua
strongest muscle in body 4+ muscles & nerves
used to orient grass
Salivary Glands
Parotid: serous secretions
secretes watery substance
LARGEST IN HERBIVORES
Salivary Glands: Mandibular
serous/muscous
at ramus of mandible
serous=adds mucus
mucous=helpslubricate
Salivary Glands: Sublingual
Serous/mucous
under the tongue
T/F 10-45 gallons of saliva produce per day
true
Pharynx
common passageway leading from oral & nasal passages to esophagus & larynx
Esophagus
carries food from mouth to stomach
opening is dorsal to larynx
Peristalsis (esophagus)
Food moves towards the stomach via
The esophagus secretes some __
Mucus
Clinical significance of Esophagus: Choke
Feed is stuck in the esophagus
Omentum
Tissues attaches the stomach to the body wall or other organs
stomach
storage
mixing food with gastric enzymes
starts mechanical & chemical breakdown of foods
The Stomach Lining for carnivores is
glandular
prod mucus,eznsymes,stomach acid
The Stomach Lining for horses rumi & pigs is
Composite
both glandular & non-glandular
2 types of stomach are
simple & complex
simple stomach
monogastrcis (one stomach)
horses pigs carnviores humans
complex stomach
ruminants
allows for digestion of plant based diet
the 4 compartments of the complex stomach are
rumen
reticulum
omasum
abomasum
Rumen
Largest fermentation vat
Reticulum
Honeycomb
most ventral
Omasum
butchers bible
Abomasum
true stomach
glandular