GI Anatomy Flashcards
(35 cards)
Where do the following salivary glands drain
A-Parotid
B-Submandibular
C-Sublingual
A-by upper 2nd molar
B-lingual caruncle
C-floor of mouth
Which muscle facilitates jaw opening
Lateral pterygoid
List the different papillae (4)
Foliate, Vallate, Fungiform, Filiform
What level does the oesophagus begin at
C6
Where can pancreatic pain radiate
Into the pain
What makes up the hindgut
Distal 1/3rd of transverse colon to proximal 1/2 of anal canal
What do branches of SMA and IMA form by anastamosing
Marginal artery of Drummond (around whole colon)
What organs are retroperitoneal
Kidneys, adrenal gland, pancreas, ascending colon, descending colon
Where are the clinically important sites of anastamoses between portal and systemic venous systems
Rectum (rectal varices), skin around umbilicus (caput medusae), distal end of oesophagus (oesophageal varisces)
Which of the papillae cannot sense taste
Filiform
What nerves are involved in the gag reflex
CN IX, CNX
List the muscles of the tongue
Genioglossus, Hyoglossus, Styloglossus, Palatoglossus
What nerve innervates the posterior 1/3rd of the tongue
Glossopharyngeal (CNIX)
Differences between jejunum and ileum
Jejunum wall thicker and heavier
Jejunum more vascularised
Jejunum has less mesenteric fat
Jejunum has larger circular folds
What organs are intraperitoneal
Liver & gall bladder, stomach, spleen, transverse colon, small intestine
What is sigmoid volvulus
Sigmoid colon twisting around itself and causing obstruction
Where are the paracolic gutters
Between lateral edge of ascending and descending colon and abdominal wall
What are the teniae coli
3 distinct longitudinal bands of smooth muscle on colon
What nerves innervate the anterior 2/3rds of the tongue
Taste-Facial Nerve (CNVII)
General-Mandibular Division of Trigeminal Nerve (CNV3)
How many teeth are there, and what age are they all erupted by
32, Age 18
What muscles make up the levator ani muscle
Puborectalis, pubococcygeus, iliococcygeus
What does the coeliac trunk trifurcate to
Splenic artery, left gastric artery, common hepatic artery
What makes up the foregut
Oesophagus to mid duodenum, liver, gall bladder, spleen, 1/2 of pancreas
What supplies the inferior half of the rectum
Middle and inferior rectal arteries (from internal iliac artery)
