Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Embryology
Digestive System
| Question | Answer |
|---|---|
| Q The primitive gut is a tube of what? | A Endoderm |
| Q What are the divisions of the digestive system? | A Pharynx, Foregut, midgut, hindgut |
| Q Which division of the digestive system extends from the buccopharyngeal membrane to the tracheobronchial diverticulum | A The pharynx |
| Q What does the foregut span? | A from the pharynx to the entrance of the bile ductinto duodenum |
| Q Which division of the DS extends from duodenum (distal to bile duct entrance) to proximal 2/3 of transverse colon? | A This is the midgut, which grows the most. |
| Q: What does the hindgut span? | A distal 1/3 of transverse colon to the cloacal membrane |
| Q What artery supplies the foregut? | A celiac artery |
| Q which gut does the sup. mesenteric artery supply? and which the inf. mesenteric artery? | A sup. to the midgut, inf. to the hindgut |
| Q Do you remember what the septum that divides the digestive/respiratory tubes is called? | A esophagotracheal septum |
| Q What structures are found in the foregut? | A esophagus, stomach, duodenum, liver, gall bladder, pancreas |
| Q Which portion of the esophagus is striated m., and which smooth? | A upper 2/3 striated, lower 1/3 smooth |
| Q When the proximal portion of the esophagus ends in a blind sac, it is called_____ | A atresia, this condition also results in polyhydramnios |
| Q When the distal portion of the esophagus connects to the trachea, it is called ______ | A esophagotracheal fistula. This also results in polyhydramnios |
| Q What is the innervation of the stomach? | A VEGAS BABY |
| Q: describe the rotation of the stomach from the orignal noodle. | A check her notes for more info. mainly it rotates longitudinally clockwise, and the dorsal side ends up inferior to form the greater curvature |
| Q This condition involves hypertrophy of the muscular layer of the stomach, which narrows the pyloric lumen, and obstructs passage of food. | A pyloric stenosis |
| Q Which gut(s) form the duodenum? | A foregut, and midgut |
| Q does the lumen of the duodenum persist throughout developement? | A no, it is obliterated and then recanalized. |
| Q which gut(s) is the liver formed from? | A foregut |
| Q This structure penetrates into the septum transversum during growth | A the liver |
| Q what does the liver's connection to the foregut form? | A the bile duct |
| Q what does the outgrowth of the bile duct form?> | A the gall bladder and the cystic duct |
| Q What are the hepatic sinusoids derived from? | A vitelline veins |
| Q CT, Kupffer cells, and hematopoietic cells are derived from ______ | A mesoderm |
| Q Which mesogastrium developes into the greater omentum? | A the dorsal mesogastrium |
| Q which mesogastrium is derived from the septum transversum? | A the ventral mesogastrium |
| Q which mesogastrium is attached to the greater curvature of the stomach? | A the dorsal |
| W which mesogastrium is divided into two parts by the developing liver? | A the ventral is divided into the lesser omentum (between liver and stomach) and the falciform ligament (between the liver and ventral body wall) |
| Q what gut is the pancreas derived from? | A the foregut |
| Q The pancreas is developed through two buds of endoderm in the duodenal region. Which bud attaches via the "duct of Santorini"? | A the dorsal bud, in the dorsal mesentery |
| Q How does the ventral bud of the developing pancreas attach to the duodenum? | A the ventral bud lies close to the bile duct. It attaches via the "duct of Wirsung" |
| Q Which pancreatic bud forms the inf. part of the head of the panreas, and the prox. part of the main pancreatic duct. | A the ventral bud. The main pancreatic duct is called the "duct of wirsung". KNOW THIS. |
| Q The dorsal bud of the develping pancreas is the major portion of the gland. What ducts are found in this portion?? | A The distal portion of the main pancreatic duct (what is it called again?) and the dorsal duct, which may persist as an accessory pancreatic duct. |
| Q Which bud of the pancreas encircles the duodenum in an "annular pancreas"? | A the ventral bud, and may constrict or ostruct the pancreas |
| Q Where is accessory pancreatic tissue most commonly found? | A in the stomach or Meckel's diverticulum. |
| Q A unique structure appears in the pancreas in month three, and insulin is secreted two months later. What is this? | A Islets of Langerhans |
| Q this structure elongates rapdily and extends out into the connecting stalk | A The primary intestinal loop |
| Which portion of the prox. intestinal loop covers the distal duodenum, jejunum, and pox ileum? | A cephalic limb |
| Q What does the caudal limb of the primary intestinal loop cover? | A distal ileum, cecum, appendix, ascending colon, and prox 2/3 of transverse colon |
| Q The midgut rotates 270 degrees counterclockwise around what axis? | A around the axis of the sup. mesenteric artery. |
| Q Other than the distal 1/3 colon, descending colon, sigmoid colon and rectum, what are derivatives of the hindgut? | A the prox portion anal canal, and the internal lining of the bladder/urethra |
| Q This is an endoderm lined cavity in contact w/ surface ectoderm at the cloacal membrane? | A the Cloaca. remember, ENDODERM lined cavity, in contact with surface ECTODERM |
| Q What divides the terminal portion of the hindgut into a primitive urogenital sinus and an anorectal canal? | A the urorectal septum |
| Q The cloacal membrane is divided into what two membranes? | A the urogenital membrane, and the anal membrane |
| Q What marks the junction between the endodermal/ectodermal regions of the anal canal? | A the pectinate line |
| Q The upper part of the anal canal is lined by endoderm of columnar epithelium, what is the lower part lined by? | A ectoderm(proctodeum) of startified squamous epithelium |
| Q what is a persistent portion of the vitelline duct called? | A Meckel's diverticulum |
| Q If the end of the vitelline duct close, and leave the middle portion intact it is called a | cyst |
Created by:
DumpTruck
Popular Biology sets