GI System (lab) Flashcards
Uvula
extension of soft palate (CN#9)
Salivary Amylase
chemical digestion of carbs.
Epiglottis
covers opening of trachea, preventing aspiration
Oral phase of Deglutition
Voluntary
Pharyngeal phase
back of mouth; hard/soft palate (involuntary)
Esophageal phase
involuntary contraction of esophagus
Parietal cells
secret Hydrochloric acid (protein & plant cell digestion)
Chief cells
secrete PEPSINOGEN (most abundant pre-enzyme)
S. I. x3 divisions
- Duodenum (receives chyme)
- Jejunum
- Illeum
NB. All chemical digestion and most absorption occurs here! (20’ long)
ileocecal valve
between small & large
Haustra
pouches along long intestine
Liver Function
- filter toxins
- absorb glucose/ minerals
- Glycogen synthesis
- Albumin synthesis
- Bile synthesis
Common Hepatic duct
drains bile from liver
Cystic duct
connects bile duct to gall bladder
Common bile duct
Transports bile to duodenum
Peritoneum
membrane lining pelvic cavity
- parietal = outer
- visceral =inner
Greater Omenta
organ anchor to peritoneal wall (fat apron)
Lesser Omenta
connects lesser curvature to liver
Messentery
Anchors to posterior body wall
Mesoduodenum
duo. –> post. colon
Messentery Proper
jejunum to illeum
Pancreati Amylase
breaks carbs to monosac.
Tripsinogen /chymtripsinogen/chymotripsin
complete protein digestion