Abdominal Viscera, Kidneys, Suprarenal Glands Flashcards
what are the quadrants of the abdomen?
right upper, right lower, left upper, left lower
what are the planes that separate the quadrants of the abdomen?
median, transumbilical
what are the horizontal planes that separate regions of the abdomen?
subcostal, transtubercular
what are the regions of the abdomen?
epigastric, umbilical, hypogastric, left and right hypochondriac, left and right lumbar, left and right inguinal
what is located within the left upper quadrant?
left lobe of liver, spleen, stomach, jejunum, proximal ileum, body and tail of pancreas, left colic flexure, left half of transverse colon, superior part of descending colon
what is located within the left lower quadrant?
sigmoid colon, inferior part of descending colon, spermatid cord
what is located within the right upper quadrant?
right lobe of liver, gallbladder, pylorus of stomach, duodenum, head of pancreas, right colic flexure, superior part of ascending colon, right half of transverse colon
what is located within the right lower quadrant?
cecum, vermiform appendix, inferior part of ascending colon, spermatic cord
what in the gut acts as a syncytium, allowing action potentials to spread in all directions?
smooth muscle
what is the rate of electrical activity in the stomach vs the duodenum?
stomach - 3/min
duodenum - 12/min
what causes contraction of smooth muscle and lasts longer than typical nerves?
spike potentials
what is the structure, and location of the esophagus?
structure - muscular tube
location - from pharynx to cardiac portion of stomach, passes into abdomen at T10 through esophageal hiatus
what part of the esophagus helps prevent acid reflux?
esophageal sphincter
what organ lies between the esophagus and small intestine?
stomach
what is the function of the fundus of the stomach?
contract/relax to maintain pressure
what are the functions of the stomach?
mechanical digestion, chemical digestion of proteins, chyme production
what are the two main parts of the cardia of the stomach?
cardiac orifice, cardiac notch
what is the main structure in the pylorus of the stomach?
pyloric sphincter
what is the interior of the stomach comprised of?
rugae/gastric folds
what are the four parts of the duodenum?
superior, descending, horizontal, ascending
what is the name of the space between the duodenum and jejunum?
duodenaljejunal junction
what are the three main parts of the small intestine?
duodenum, jejunum, ileum
what are the functions of the small intestine?
mix chyme to increase surface area, absorption (duodenum and jejunum)
what are the functions of the large intestine?
absorb water/potassium/vitamins, gastroileal reflex, rectosphincteric reflex
what is the gastroileal reflex?
opening of ileocecal valve to produce peristalsis of large intestine
what is the rectosphincteric reflex?
distension of rectum and relaxation of internal and external anal sphincters
what are the main parts of the large intestine?
cecum, appendix, colon, rectum, anal canal
what are the external parts of the large intestine?
omental appendices, haustra, taeniae coli
what is the function of the mesenteries of the intestines?
support viscera, passageway for vessels/nerves/lymphatics
where is the potential space in the intestines?
between parietal and visceral layers of peritoneum
what organ is in the retroperitoneal space?
pancreas
what are the functions of the spleen?
mechanical filtration of red blood cells, lymphatic drainage
what are the two components of the peritoneal space?
greater sac, lesser sac
what is contained within the spleen?
nodules of b-lymphocytes and t-lymphocytes
how does the spleen filter red blood cells?
macrophages devour abnormal red blood cells in the sinusoids/red cords
where is the spleen located?
upper left quadrant, left hypochondriac region
what is the size and weight of the spleen?
4 in long, 150-200 g
what is the exocrine function of the pancreas?
break down CHO, protein, and lipids in chyme via pancreatic juice
what is the endocrine function of the pancreas?
produce glucagon, insulin, somatostatin, and pancreatic polypeptides via the islets of langerhans
what are the parts of the pancreas?
head, uncinate process, neck, body, tail
what kind of gland is the pancreas?
digestive, accessory gland
where does the pancreas lie in the abdomen?
posterior abdominal wall
what is the largest gland in the body?
liver
the liver has two functionally independent parts - what are they? what other lobes make up the liver?
right part, left part
caudate, quadrate
what vessels are found in the porta hepatis?
portal vein, hepatic artery, hepatic nerve plexus, hepatic ducts, lymphatic vessels
what are the major functions of the liver?
amino acid synthesis, CHO metabolism, lipid metabolism, production of coagulation factors, production and excretion of bile, breakdown of hormones and toxic substances, storage of glucose/vitamin d/vitamin b12/certain trace elements
what processes occur in the liver during CHO metabolism?
gluconeogenesis, glycogenolysis, glycogenesis
what processes occur in the liver during lipid metabolism?
cholesterol synthesis, lipogenesis
what is secreted by the liver? what is it released in response to?
bile
cholecystokinin
what process occurs due to bile?
fat emulsification
what are the biliary ducts?
common hepatic duct, right and left hepatic ducts, cystic duct, bile duct, main pancreatic duct
what is the biliary duct off the gallbladder?
cystic duct
the portal-systemic anastomosis occurs through which veins?
esophageal vein, rectal vein, paraumbilical vein, colic vein
what veins drain into the portal vein?
splenic vein, superior mesenteric vein, left gastric vein
what vein drains into the splenic vein?
inferior mesenteric vein
what is the abnormal accumulation fo abdominal fluids?
ascites
what abdominal viscera and part of the abdomen is supplied by the celiac artery?
liver, pancreas, spleen, stomach, duodenum
foregut
what abdominal viscera and part of the abdomen is supplied by the superior mesenteric artery?
jejunum, ileum, appendix, ascending colon, transverse colon
midgut
what abdominal viscera and part of the abdomen is supplied by the inferior mesenteric artery?
transverse colon, descending colon, sigmoid colon, rectum
hindgut
an organ of excretion, not digestion; retroperitoneal and not supported by mesentery is which organ?
kidney
which kidney is more superior?
left kidney
what is the function of the kidney?
regulation of body fluids and extracellular volumes
how much cardiac output flows through the renal artery?
20%
entry/exit site of kidney that allows for the passage of the renal vein, renal artery, and ureter?
renal hilum
what is adult polycystic kidney disease?
multiple cysts that destroy kidneys
what are signs and symptoms of adult polycystic kidney disease?
flank pain, hematuria, hypertension, infections, kidney failure, death
what is located within the renal cortex of the kidney?
proximal and distal tubules, minor calyx, renal papilla
what is located within the renal medulla?
loop of henle
what is located within the renal sinus?
major calyx
what is the functional unit of the kidney?
nephron
what are the two parts of the nephron?
cortical nephron, juxtamedullary nephron
what is the movement of fluid from the glomerular capillaries to Bowman’s space?
filtration
what is the movement of substances from the nephron to surrounding vessels?
reabsorption
what is the movement of substances from surrounding vessels into the nephron?
secretion
what is the equation for urinary excretion?
glomerular filtration - tubular reabsorption + tubular secretion - collecting duct concentration
how much does a person urinate/day?
1-2 L
how much fluid do the kidneys filter/min, known as the glomerular filtration rate?
100-120 mL/min
how much blood flow is there to the kidneys? circulating blood passes through the kidneys how often? how much plasma do the kidneys filter a day??
1.2-1.3 L/min
4-5 min
60x/day
what is the equation for glomerular filtrate production?
hydrostatic pressure of blood (45 mmHg) - hydrostatic pressure of fluid in urinary space (10 mmHg) + osmotic pressure of blood (20 mmHg)
what is excess amounts of urine produced?
polyuria
what is low urine volume and output (between 50-500 mL/day)?
oliguria
what is little to no urine output (0-50 mL/day)?
anuria
how much filtrate is produced per min? how much filtrate is released in calyces as urine?
125 mL/min
1 mL
how much filtrate is produced per day? how much filtrate is released in calyces as urine?
180 L/day
1.5 L
what are the two components of the suprarenal gland?
suprarenal cortex, suprarenal medulla
what innervates the suprarenal medulla?
sympathetic preganglionic neurons
what hormones come from the suprarenal medulla? examples?
catecholamines
noradrenaline, adrenalin
what hormones come from the suprarenal cortex? examples?
corticosteroids
mineralocorticoids - aldosterone (salt/blood volume balance), renin-angiotensin-aldosterone feedback loop
glucocorticoids - cortisol (metabolism rate), hypothalamus-pituitary adrenal feedback loop)
what is pain due to irritation or distension of the visceral organs that is sensed on the body wall?
referred pain
what can referred pain be confused with?
musculoskeletal pain