38: GI Anatomy - Matz

Question 1

mouth is divided into

Answer 1

vestibule (between lips and teeth) and oral cavity proper (teeth, tongue)

division line is teeth

Question 2

what salivary gland opens in vestibule?

Answer 2

parotid gland

Question 3

palate to tongue arch

palate to pharynx arch

Answer 3

palatoglossal

palatopharyngeal

Question 4

hallmark of oro and laryngopharynx

Answer 4

epiglottis

Question 5

location of esophagus

Answer 5

posterior mediastinum

Question 6

constrictions of esophagus

Answer 6

cervical (cricopharyngeus)
thoracic (behind aorta and bronchi)
diaphragmatic (through right crus of diaphragm)

Question 7

where is the esophageal hiatus?

Answer 7

T10

right crus of the diaphragm

Question 8

blood supply to esophagus

Answer 8

thoracic aorta

esophageal branches of l. gastric

Question 9

parts of intestines associated with mesocolon

Answer 9

transverse and sigmoid colon

mesentery is associated with the small intestine (jejunum and ileum)

Question 10

part of mesentery attaching to stomach and liver

Answer 10

omentum

Question 11

falciform ligament

Answer 11

round ligament of the liver (ligamentum teres hepatis)

is ventral peritoneum!

Question 12

epiploic foramen of winslow

Answer 12

entrance from greater to lesser sac

aka omental foramen

Question 13

how many layers are in the visceral peritoneum? mesentery? greater omentum?

Answer 13

1
2
5

Question 14

lesser sac is found?

Answer 14

behind stomach, towards spleen

Question 15

regions of stomach

Answer 15

cardia
fundus (air bubble)
body
pylorus and pyloric sphincter

Question 16

curvatures of stomach

Answer 16

greater

lesser

Question 17

blood supply to stomach

Answer 17

left (from celiac trunk) and right gastric (from hepatic trunk) (lesser curvature)
left (from splenic) and right gastroepiploic (greater curvature)
short gastrics (fundus)
gastroduodenal (pyloric region)

Question 18

parts of small intestine in order

Answer 18

duodenum (“c loop”)
jejunum (most absorption) (plicae circularis)
ileum

Question 19

blood supply to small intestine

Answer 19

gastroduodenal (from common hepatic)
superior pancreaticoduodenal (from celiac trunk)
superior mesenteric

Question 20

3 primary branches celiac trunk

Answer 20

left gastric
splenic
common hepatic

Question 21

what part of duodenum is retroperitoneal?

Answer 21

2nd and 3rd (out of 4)

Question 22

parts of lg. intestine in order

Answer 22

cecum
ascending colon
transverse  colon
descending colon
sigmoid colon
rectum

Question 23

taenia coli

Answer 23

outer longitudinal layer of muscle in 3 strips in lg. intestine

causes haustrae

stops at beginning of rectum

Question 24

blood supply to lg. intestine

Answer 24

superior (ileocecal, ascending colon, transverse colon) and inferior mesenteric (descending, sigmoid, superior rectal)

internal iliac (middle rectal) and internal pudendal (anal sphincter and inferior rectal)

Question 25

transition pt for blood flow in lg. intestine

Answer 25

left colic flexure

if it crosses line it is marginal a.

Question 26

fatty appendages on lg. intestine

Answer 26

appendices epiploica

differentiates from sm intestine

Question 27

superior v. middle and inferior rectal vv.

Answer 27

lower drain into IVC

superior goes to portal v.

Question 28

rectal veins and aa and also called

Answer 28

hemorrhoidal aa and vv

named for clinical part

Question 29

blood supply to anus

Answer 29

internal pudendal

Question 30

internal and external sphincter

Answer 30

internal is voluntary (pudendal n.) ??? (online internal is involuntary – makes more sense)

parasymps S234 are “pooping control”

Question 31

pectinate line

Answer 31

above is autonomic

below is somatic (pudendal) (pain!_

Question 32

hepatic portal v. recieves blood from

Answer 32

sup mesenteric
splenic
inf mesenteric (goes into splenic)

Question 33

quadrate lobe of liver is near

Answer 33

gallbladder

tail of liver is caudate lobe

both are part of right lobe

Question 34

main blood supply to pancreas

Answer 34

splenic a.

Question 35

parasymp innervation up to l. colic flexure is …

Answer 35

vagus CN X

then S234 (pelvic splanchnic) after

promotes peristalis and secretion

symps are from T1-L2

Question 36

appendicitis referred pain

Answer 36

T10 (belly button)

Question 37

drains lymp from below diaphragm

Answer 37

thoracic duct

cisterna chyli = thoracic duct accumulation