V: Abdominal Cavity III- Abdominal Organs and Functional Anatomy Flashcards
greater peritoneal sac
potential space surrounding the stomach and spleen
lesser peritoneal sac
space behind stomach
opening between the greater and lesser peritoneal sac
epiploic foramen
three parts of the greater omentum
gastrocolic: stomach to transverse colon
gastrosplenic/lienal: spleen to greater curvature of the stomach
gastrophrenic: stomach to diaphragm
two parts of lesser omentum
hepatoduodenal ligament: liver to duodenum
hepatogastric ligament: liver to stomach
dorsal mesointestine/ the mesentery
frilly skirt
-support ileum and jejunum
dorsal mesocolon
supports the cecum
mesoappendix
supports the appendix
what divides the abdomina lcavity into supracolic and infracolic compartments?
transverse mesacolon
what is in the supracolic compartment?
stomach, liver and spleen
what is in the infracolic compartment
small intestine and ascending and descending colon
sigmoid mesocolon
supports the sigmoid coloon
lienorenal ligament
left kidney to the spleen
gastrolienal ligament
stomach to spleen
coronary ligament
peritoneal reflection around bare area of liver
hepatorenal ligament
coronary ligament running between peritoneum above right kidney and liver
falciform ligament
remnant of ventral mesentery connecting liver to anterior body wall
ligamentum teres/round ligament
part of falciform ligament
what is the ligamentum teres a remnant of?
fetal umbilical vein
what chemicals aid the mechanical breakdown of food in the stomach?
pepsin
stomach acid
what structure accomadates stomach stretching?
rugae
sliding v. paraesophageal hernias
para: always above the diaphragm
sliding: part of stomach sometimes comes above the diaphragm
main functions of small intestine
- absorption of nutrients, electrolytes and water
- chemical digestion of chyme
what 4 things happen in the duodenum?
- acid is neutralized
- fats are broken down
- insulin and other pancreatic juices are secreated
- intrinsic intestinal glands secret juices to further break down food
where is iron absorped?
dudodenum
where is most absorption occuring?
jejunum
where is vit. B12 absorbed?
ileum
where are plicae circulares present?
small intestine
which intestine is deep red? pink?
jejunum- deep red
ileum- pink
caliber 2-4 cm v. caliber 2-3 cm
jejunum v. ileum
thick and heavy wall v. thin and light
jejunum v. ileum
which intestine section is less vascularized?
ileum
which intestine section has long vasa recta?
jejunum
which intestine has many short loops of arcades v. few longer loops?
short- ileum
long- jejunum
which intestine section is more covered in fat?
ileum
which section of the intestine has more plicae circulares?
jejunum
what are the functions of the large intestine?
- absorb water and remaining salts
- commensal bacteria synthesize some vitamins
where do you find plicae semilunares?
colon
what is the function of the appendix?
storage of commensal organisms and immune function
what is the largest organ in the body? second largest?
1- skin
2- liver
what are the functions of the liver?
- protein synthesis
- bile secretion
- metabolism
- detoxification
how many lobes to a liver?
4 right left caudate (superior) quadrate (inferior)
porta hepatis
transverse fissure where major vessels pass through on liver
glisson’s capsule
thin capsule of dense connective tissue, thickest at the hilum of liver
what carries oxygen poor nutrient rich blood from the gut to the liver
portal vein
how does the liver carry blood back to the heart?
hepatic vein –> IVC
what sends oxygenated blood to liver cells?
hepatic artery
what innervates the gall bladder?
celiac plexus and afferents from phrenic n.
what are the functions of the gall bladder?
store and concentrate bile
what is the blood supply to the gall bladder?
r. hepatic a from teh cystic a.
how do secretions from lliver and gall bladder reach duodenum>
r. and l. hepatic ducts –> common hepatic duct
common hepatic duct + cystic duct from gall bladder = common bile duct –> duodenum
what innervates the pancreas
celiac plexus and superior mesenteric plexus
what functions does the pancreas have
pancreatic enzyme juice to break down food and endocrine insulin-producing functions
what innervates the spleen
celiac plexus
what are the functions of the spleen
- secondary lymphoid organ (WBC maturation and proliferation) (antibody secretion) (undifferentiated monocyte reservoir)
- destruction and recycling of RBC
what is the blood supply to and from the spleen
splenic a and v.