General Anatomy Chiro Essentials 7 Gastro-intestinal Anatomy Flashcards
The forgut, midgut and hindgut are derived from which of the following:
A. Mesoderm
B. Ectoderm
C. Endoderm
Endoderm
The foregut is supplied by the celiac trunk. What are the 6 anatomical structures derived from the foregut?
*ESD-LGP
Esophagus Stomach Duodenum (proximal 1/2) Liver Gallbladder Pancreas
The Midgut is supplied by the superior mesenteric artery. What are the 4 anatomical structures derived from the midgut? *DSLT
Duodenum (Distal 1/2) Small intestine Large intestine (proximal 1/2) Transverse colon (proximal 2/3)
The hindgut is supplied by the inferior mesenteric artery. What are the 3 anatomical structures derived from the midgut?
Large intestine (the rest) Transverse Colon (distal 1/3) Anal Canal (proximal 1/2)
What is an uncommon congential anomaly that occurs in 2% of the population, ~2inches long, located 2 feet proximal to the ileocecal junction, may contain 2 types of ectopic tissues and it is 2x more common than men?
Meckel’s diverticulum
22222
Meckel is all about dem 22s on that ride
What are the 9 regions of the abdomen from superior to inferior in groups of 3s?
Right hypochondrium, Epigastric, left hypochondrium
Right Flanks, Umbilical, Left Flanks
Right iliac, hypogastric, left iliac
What region of the abdomen contains the stomach, duodenum and pancreas? A. Umbilical B. Left iliac C. Epigastric D. Hypogastric
Epigastric
What region of the abdomen contains the liver and gallbladder? A. Right hypochondrium B. Left iliac C. Epigastric D. Hypogastric
Right hypochondrium
What region of the abdomen contains the bladder and uterus? A. Right hypochondrium B. Left iliac C. Epigastric D. Hypogastric
Hypogastric
What region of the abdomen contains the appendix? A. Left hypochondrium B. Left iliac C. Right iliac D. Hypogastric
right iliac
Which region(s) of the abdomen contain the kidneys? A. Left Flank B. Left iliac C. Right Flank D. Hypogastric
left and right flanks
What region of the abdomen contains the Spleen? A. Left hypochondrium B. Left iliac C. Right iliac D. Hypogastric
Left hypochondrium
What region of the abdomen contains the small intestine? A. Umbilical B. Left iliac C. Right iliac D. Hypogastric
Umbilical
What region of the abdomen contains the Sigmoid colon? A. Left hypochondrium B. Left iliac C. Right iliac D. Hypogastric
Left iliac
What dermatome is found at the xiphoid process?
T7
What dermatome is found at the umbilicus?
T10
What dermatome is found at the inguinal region?
L1
What dermatome is found at the 1st and 2nd digits of the hand?
C6
What dermatome is found at the nipple?
T4
The anterior abdominal wall consists of what 6 layers?
*SSMTEP
Skin Subcutaneous tissue Muscles Transverse fascia Extraperitoneal Fat Parietal Peritoneum
The anterior abdominal wall is innervated by the lower 5 intercostals (T7-T11), the subcostal nerve and what other nerve?
ilioinguinal (L1)
what are the contents of the rectus sheath?
Rectus abdominis muscle
Pyramidialis muscle
Superior and inferior epigastric arteryes and veins
The rectus shealth is divided into layers via what line?
Arcuate line
The peritoneum in the inner lining of what cavity?
Abdominal
The peritoneum has 2 parts consisting of the parietal and visceral peritoneum. Which one is NOT sensitive to pain, and deals with a sensation of distention?
Visceral
Which peritoneum is sensitive to pain within the abdominal cavity?
Parietal
The abdominal cavity is divided into two compartments known as the ______ sac and _______ sac?
Greater and Lesser sacs
The lesser sac opens into the greater sac via what foramen?
epiploeic foramen (of winslow)
What are the retroperitoneal structures? *AC DC PARK AID
Ascending Colon Descending Colon Pancreas Adrenals Rectum (lower 2/3) Kidneys Aorta IVC Duodenum
What organ is a J shaped sac lined with columnar epithelium?
Stomach
How many layers of smooth muscle does the stomach have and what are they?
3 layers
Outer-longitudinal
Inner- circular
Innermost- oblique
What is the type of cell found in the stomach that secrete pepsinogen?
Chief cells
What is the type of cell found in the stomach that secrete hydrochloric acid and intrinsic factor?
Parietal (oxytocin) cells
Which 2 of the following are branches of the celiac trunk from the splenic artery? A. Left Gastric B. Right Gastric C. Left Gastro-epiploic D. Short Gastric
Left Gastro-epiploic
Short Gastric
Which of the following is a branch of the celiac trunk from the proper hepatic artery? A. Left Gastric B. Right Gastric C. Right Gastro-epiploic D. Short Gastric
Right Gastric
Which of the following is a branch of the celiac trunk from the gastro-duodenal branch of the common hepatic artery? A. Left Gastric B. Right Gastric C. Right Gastro-epiploic D. Short Gastric
Right Gastro-epiploic
What is the most superior part of the stomach? A. Fundus B. Cardia C. Antrum D. Pylorus
Cardia
What part of the GI tract receives contents immediately after the stomach?
small intestine
Which part of the small intestine wraps around the head of the pancreas? It is also ~10 inches long and consists of 4 parts
Duodenum
Which of the following represents the longest part of the duodenum? A. Superior part B. Descending part C. Horizontal part D. Ascending part
Horizontal
(~4 inches long)
the shortest part is the ascending part at ~1 inch
The upper half of the duodenum is supplied by: A. Inferior pancreatico-duodenal Artery B. Superior mesenteric artery C. Duodenal-jejunal junction D. Superior pancreatico-duodenal
Superior Pancreatico-duodenal
The lower half of the duodenum is supplied by: A. Inferior pancreatico-duodenal Artery B. Superior mesenteric artery C. Duodenal-jejunal junction D. Superior pancreatico-duodenal
Inferior pancreatico-duodenal
The common bile duct of the biliary tree opens into which part of the duodenum? A. First part B. Second part C. Third part D. Fourth part
Second part
The superior mesenteric vein and artery pass over which part of the duodenum? A. First part B. Second part C. Third part D. Fourth part
Third
The duodeno-junction is fixed and is held in place by which ligament? A. Suspensorty Ligament of Treitz B. Right gastric ligament C. Left Gastric ligament D. Renal artery
A. Suspensorty Ligament of Treitz
The cystic duct of the gallbladder joins with what duct to form the common bile duct?
common hepatic duct
The triangle between the cystic duct, common hepatic duct and the liver is known as ________ triangle?
Callots
T/F: The cystic artery is contained within the callot triangle?
True
The common heptic bile passes through the head of the pancreas and is joined by the main pancreatic duct to open which part of the duodenum?
second part
The sphincter of Oddi helps guard the opening of: A. Jejunum B. Ileum C. Duodenum D. Gallbladder
Duodenum
Where is bile stored?
Gallbladder
The gallbladder lies in a fossa btwn which lobes of the liver?
A. Right and left
B. Right and Quadrate
C. Quadrate and left
right and quadrate lobes
What are the 3 parts of the small intestine?
Duodenum Jejunum Ileum
What is the longest part of the small intestine? How long is it?
ileum ~ 12 ft
The jejunum is ~8 ft long and occupies which part of the abdomen? A. Upper Left B. Upper Right C. Lower Right D. Lower Left
Upper left
Which part of the small intestine is thinner, narrower, and less vascular? A. Ileum B. Jejunum C. Duodenum D. Stomach
Ileum
The ileum is ~12ft long and occupies which part of the abdomen? A. Upper Left B. Upper Right C. Lower Right D. Lower Left
lower right
The mesentery of which small intestine part would have small opaque windows, smaller arcades and short vasa recta? A. Ileum B. Jejunum C. A and B D. Duodenum
Ileum
Which part of the small intestine would be associated with numerous lymphoid aggregates known as peyer patches (GALT)?
Ileum
What 3 features make the large intestine different than the small intestine? (HAT)
Haustra
Appendices epiploica
Teniae Coli
T/F: The small intestine has a larger diameter than the large intestine?
Flase
L.I. has a larger diameter
Which of the following colon divisions is the longest? A. Cecum B. Ascending C. Descending D. Transverse E. Sigmoid
Transverse (~20 inches long)
- sigmoid is 2nd longest at ~15 inches
The Appendix is an out-pouching of which part of the cecum? A. Posterolateral aspect B. Superomedial aspect C. Anterolateral aspect D. Posteromedial aspect
Posteromedial
T/F: Can the appendix be located behind the cecum, in pelvis and retro-ileal?
True
The large intestine is derived from which 2 areas?
A. Foregut
B. Midgut
C. Hindgut
Midgut
Hindgut
Which two arteries supply the large intestine? A. Superior Mesenteric Artery B. Proper hepatic artery C. Short gastric arteries D. Inferior Mesenteric Artery
superior and inferior mesenteric arteries
A D
The Sigmoid colon continues as the _________?
Rectum
The Watershed area is at the junction of which parts of the colon where the midgut transitions into the hindgut?
A. Distal 2/3 of ascending colon and 1/2 of transverse colon
B. Prox 2/3s and distal 1/3 of transverse colon
C. Distal sigmoid colon and prox 1/3 of rectum
B
Prox 2/3 AND distal 1/3 transverse colon
*so the transeverse colon is a TRANSITION zone for the mid and hind gut
How long is the rectum? A. 2 inches B. 9 inches C. 11 inches D. 5 inches
5 inches
What lower part of the rectum is dilated:
A. perineal line
B. Ampulla
C. Anal canal
Ampulla
The Rectum continues as the ______ ______?
Anal Canal
The rectum drains which of the following nodes?
A. Inferior mesenteric nodes
B. Superior mesenteric nodes
C. Superficial inguinal nodes
Inferior mesenteric nodes
The anal canal is derived from what embryological origins? A. Ectoderm B. Endoderm C. Mesoderm D. A and B
A and B
The junction of the ectoderm and endoderm in the anal canal is called the: A. Perineal line B. Pectinate line C. Pectineal line D. Perianal line
C
Pectineal line
How many pushups can chuck norris do?
All of them
SMILE THIS IS FUN :)
Which anal canal sphincter is made up of skeletal muscle?
External
Which anal canal sphincter is made up of smooth muscle?
Internal
The inferior rectal branch of the pudendal nerve supplies which anal canal sphincter?
External
The columns of morgagni are located?
A. Below the pectineal line of the anal canal
B. Above the pectieal line of the anal canal
C. Sigmoid colon
D. They are not in the anal canal
Above the pectineal line
Is the endoderm above the pectineal line pain sensitive or insensitive?
insensitive
Is the ectoderm below the pectineal line pain sensitive or insensitive?
Pain
The lymphatics from the below the pectineal line drain into the lateral group of ______ ______ nodes of the groin?
superficial inguinal nodes
The upper half of the anal canal is derived from?
A. Ectoderm
B. Endoderm
C. Mesoderm
Endoderm
no pain
The lower half of the anal canal is derived from?
A. Ectoderm
B. Endoderm
C. Mesoderm
Ectoderm
pain