GIT Portions Flashcards
Oral cavity glands + consistency produced
- Zygomatic
- Parotid - serous
- Sublingual - mucus
- Mandibular - both
Oesophagus Layers (out to in)
- serosa - connective tissue
- tunica muscularis - longditudinal + circular muscles = peristalysis
- submucosa - blood + lymphatics and elastic + collagen fibres
- mucosa - non keratinized stratified squamous = glands for lubrication
Stomach layers (out to in)
- muscularis externa - muscles
- submucosa - protection
- mucosa - gastric glands and pits
Stomach sections (monogastric)
- cardia
- pyloric
- fundic
- body
peritoneum structures that support stomach (x4)
- greater omentum - stomach to duodenum
- lessere omentum - stomach to liver
- gastrophlenic ligament - stomach to diaphram
- gastrosplenic ligament - stomach to spleen
SI layers (out to in)
- Serosa
- Subserosa
- Muscularis propria
- Tunica propria
- Mucosa - villi
LI layers (out to in)
Muscular layers
1. Serosa
2. Tunica muscularis
3. Submucosa
4. mucosa
SI sections + functions
- Duodenum - secrete mucus + bile
- Jejunum - absorb sugar, fatty acid, amino acid
- Ileum - absorb bile, vitamin
Pancreas exocrine cells name
acini
Pancreas endocrine cells name
Pancreatic islets of Langerhaans
LI Ceacum function
digest cellulose by microflora (hindgut fermenters)
Liver hepatocytes functions
synthesis of bile
synthesis of blood
storage
which artery supplies blood to the pancreas
splenic artery
name of connective tissue that separates pancreas lobes
septae
three portions of colon
- ascending
- transverse
- descending
colon layers (out to in)
- serosa
- tunica muscularis
- submucosa
- mucosa
liver function
removal of toxins from blood
what does the liver store
glycogen, vitamins (A + B12 + K + D), minerals (Fe + Cu)
What does the liver produce
bile, enzymes, hormones, cholesterol, tryglycerides
liver functions
protein digestion - amino acids = energy
fat digestion - breakdown fat = energy
carb metabolism - maintain blood glucose
synthesis
storage - vitamins, minerals, carbs
immunity - kupffer cells = break down red blood cells
peritoneal cavity structure and function
serous membrane = lining of abdominal cavity
composition = mesothelium + layer of connective tissue
function = support + gives blood vessels, lymphatics, nerves
main artery that supplies foregut
celiac artery
main vein that drains foregut
hepatic portal vein
duodenum function
secretes mucous and fluids
bile duct
pancreatic duct
jejenum and illeum function
absorbs nutrients and water
ileocaecoclic junction function
between illeum and ascending colon
peritoneum function
serous membrane, lining of abdominal cavity
mesentary structure and function
double lining of peritoneum, connects internal organs to body wall
blood + lymphatics + nerves to internal organs
lesser omentun vs greater omentum
lesser = stomach + proximal duodenum to Liver
greater = stomach + proximal duodenum to proximal colon + proximal mesocolon
name of artery that gives blood supply to midgut and hindgut
cranial/caudal mesenteric artery
3 main abdominal muscles
internal abdominal poblique
transverse abdominal oblique
external abdominal obnlique
inguinal ring structure + function
connective tissue opening between abdominal muscles and their aponeurosis
male = spermatic cord
female = round ligament
artery that gives blood supply to abdominal wall
cranial/caudal superficial epigastric artery
list endocrine glands
pituitary, ovary, testes, hypothalamus, thyroid, parathyroid, adrenal, pancreas
