Rachel Shared "GI" - 33 Picmonics
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GI
Foregut Structures, Blood Supply and Innervation
- Structures
- Esophagus
- Lower Respiratory Tract
- Stomach
- Proximal Duodenum
- Liver
- Gallbladder
- Pancreas
- Spleen
- Vascular Supply
- Celiac Artery
- Innervation
- Vagus Nerve
2 mins
Midgut Structures, Blood Supply and Innervation
- Structures
- Distal Duodenum
- Jejunum
- Ileum
- Appendix
- Ascending Colon
- Proximal 2/3 of Transverse Colon
- Vascular Supply
- Superior Mesenteric Artery
- Innervation
- Vagus Nerve
- Lesser Splanchnic Nerve
2 mins
Hindgut Structures, Blood Supply and Innervation
- Structures
- Distal 1/3 of Transverse Colon
- Descending Colon
- Sigmoid Colon
- Rectum
- Pectinate (Dentate) Line
- Urogenital Sinus
- Vascular Supply
- Inferior Mesenteric Artery
- Innervation
- Lumbar Splanchnic Nerves
- Pelvic Splanchnic Nerves
2 mins
Large Intestine
- Characteristics
- Colon
- Electrolyte Reabsorption
- Water Reabsorption
- Microflora Produce Vitamins
- Rectum Stores Feces
1 min
Pancreas
- Characteristics
- Acinar Cells Release Digestive Enzymes
- Ductal Epithelial Cells Release Bicarbonate
- Islets of Langerhans
- Beta Cells Release Insulin
- Alpha Cells Release Glucagon
- Delta Cells Release Somatostatin
- Somatostatin Inhibits Alpha and Beta Cells
3 mins
Inguinal Canal
- 2MALT
- 2 Muscles Form the Roof
- Internal Oblique
- Transverse Abdominus Muscle
- 2 Aponeuroses Form the Anterior Wall
- External and Internal Abdominal Oblique Aponeuroses
- 2 Ligaments Form Floor
- Lacunar Ligament
- Inguinal Ligament
- 2 T's Form the Posterior Wall
- Transversalis Fascia
- Conjoint Tendon
- Deep Ring is Defect in Transversalis Fascia
- Superficial Ring is Formed by Defect in the External Abdominal Oblique Aponeurosis
2 mins
Cholecystokinin (CCK)
- LOCATION
- Secreted by I Cells
- Duodenum and Jejunum
- Physiology
- Increase Pancreatic Secretions
- Increase Gallbladder Contraction
- Induce Relaxation of Sphincter of Oddi
- Decrease Gastric Emptying
- Increases Satiety
- Regulation
- Increased by Fatty Acids and Amino Acids
3 mins
Somatostatin
- Secreted by D Cells
- Pancreas
- GI Tract
- Action
- Decrease Secretion of Gastric Acid and Pepsinogen
- Decrease Pancreatic and Small Intestine Fluid Secretion
- Decrease Gallbladder Contraction
- Decrease Glucagon and Insulin Secretion
- Regulation
- Secretion is Increased by Acid
- Secretion is Decreased by Vagal Stimulation
- Clinical Use
- Octreotide
- Carcinoid Syndrome
- Variceal Bleeds
2 mins
Bile
- Synthesis and Circulation
- Synthesized Continuously By Hepatocytes
- Cholesterol 7 Alpha-Hydroxylase Rate Limiting Step
- Stored In Gallbladder
- Secreted Into Duodenum
- Bile Salts Reabsorbed In Terminal Ileum
- Returned To Liver Via Portal Circulation
- Composition
- Bilirubin
- Bile Salts
- Cholesterol And Phospholipids
- Ions And Water
4 mins
GI Absorption
- Stomach
- Alcohol
- Duodenum
- Iron
- Jejunum
- Folate
- Terminal Ileum
- Vitamin B12
- Bile Resorption
1 min
Oral Cavity
- Characteristics
- Mouth
- Mechanical Digestion
- Salivary Amylase Begins Carbohydrate Breakdown
- Lingual Lipase Begins Lipid Breakdown
- Esophagus
- Bolus
- Peristalsis
1 min
Stomach Digestion
- Characteristics
- Chief Cells Secrete Pepsinogen
- Pepsinogen Turned to Pepsin By H+
- Protein Breakdown Begins
- Mucous Cells Secrete Mucus and Bicarbonate
- G Cells Secrete Gastrin
- Gastrin Stimulates Parietal Cell HCl Release
- Parietal Cells Secrete Intrinsic Factor
2 mins
Small Intestine Digestion
- Brush border enzymes
- Pancreatic Enzymes are secreted via a Duct
- Pancreas secretes bicarbonate
- Brush Border activates Pancreatic Trypsin
- Trypsin activates Chymotrypsin
- Trypsin and Chymotrypsin digest Proteins
- Gallbladder Releases Bile
- Pancreatic Lipase breaks down Lipids
- Goblet cells secrete mucus
- Pancreatic Amylase breaks down Carbohydrates
- Pancreatic Nucleases breakdown DNA/RNA
- Digestion occurs in the Duodenum
2 mins
Small Intestine Absorption
- Characteristics
- Carbohydrates Undergo Active Transport
- Fructose Undergoes Facilitated Diffusion
- Amino Acids Undergo Active Transport
- Iron Undergoes Active Transport
- Water-Soluble Vitamins Undergo Active Transport
- Small Lipids Undergo Passive Diffusion
- Epithelial Cells
- Intestinal Capillaries
- Hepatic Portal Circulation Transports Absorbed Nutrients To The Liver
- Liver Processes Absorbed Nutrients
- Large Lipids and Fat-Soluble Vitamins Transported as Chylomicrons
- Lacteals Transport Chylomicrons
3 mins
Bilirubin Metabolism Overview
- Blood
- Unconjugated Bilirubin
- Bound to Albumin
- Heme
- Red Blood Cells
- Macrophages
- Liver
- Conjugated Bilirubin
- Secreted into Bile
- Bowel
- Urobilinogen
- Eliminated in Feces
- Eliminated in Urine
- Enterohepatic Circulation
3 mins
Gastroesophageal Reflux Disease (GERD) Assessment
- Pathophysiology
- Relaxed Lower Esophageal Sphincter
- Signs and Symptoms
- Dyspepsia (Indigestion)
- Belching
- Nighttime Coughing
- Dysphagia
- Epigastric Pain
- Regurgitation
- Heartburn (Pyrosis)
- Globus
2 mins
Types of Hernias
- Hiatal
- Gastroesophageal Reflux Disease (GERD)
- Inguinal
- Men
- Femoral
- Women
- Incisional
- Umbilical
- Consideration
- Strangulation
1 min
Hernia Interventions
- Reduce Intra Abdominal Pressure
- Avoid Straining and Lifting
- Open Mouth Sneezing
- Excision
- Herniorrhaphy
- Hernioplasty
- Consideration
- Scrotal Support
1 min
Proton Pump Inhibitors (PPIs)
- "-prazole" Suffix
- Indications
- Zollinger-Ellison Syndrome
- Gastritis
- Peptic Ulcer
- Gastroesophageal Reflux Disease (GERD)
- Mechanism
- Inhibit H+/K+/ATPase
- Side Effects
- Hip fracture
- Pneumonia
2 mins
H2 Receptor Blocker
- "-tidine" Suffix
- Indications
- Gastroesophageal Reflux Disease (GERD)
- Peptic Ulcer
- Mechanism
- Block Histamine H2 Receptors
- Parietal Cells
52 secs
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