Abdomen 2 Flashcards
Subdivisions of GIT + Arterial supply
- Foregut - celiac a.
- Midgut - sup. mesenteric a.
- Hindgut - inf. mesenteric a.
Subdivisions of GIT + Arterial supply
- Foregut - celiac a.
- Midgut - sup. mesenteric a.
- Hindgut - inf. mesenteric a.
Soft palate function
- ensures food moves inferiorly down into oesophagus
Soft palate - arterial supply
Facial a. & maxillary a.
Stomach - structure (diagram + list features)
- Cardia - surrounds gastroesophageal opening
- Fundus - superior dome region
- Body (+ greater & lesser curvature)
- Pylorus - Distal region where stomach joins duodenom
–> + pyloric sphincter - valve between stomach & duodenom
What are the folds of the stomach wall called? and what is their function?
Rugae - increase SA
What attaches to the greater and lesser curvature of the stomach, respectively?
Greater curvature - greater omentum
Lesser curvature - lesser omentum
Small intestine segments
- duodenum
- jejunum
- ileum
Duodenum parts
- Part 1 - ascending (intraperitoneal organ)
- Part 2 - descending (retroperitoneal organ)
- Part 3 - horizontal (retroperitoneal organ)
- Part 4 - ascending (retroperitoneal & intraperitoneal distally)
What is the longest segment of the small intestine?
ileum
In which segment of the small intestine does ABSORPTION primarily take place?
Jejunum
3 branches of the celiac trunk (mnemonic)
“Left Hand Side”
1. left gastric a.
2. common hepatic a.
3. splenic a.
Small intenstine blood supply
- Duodenum - celiac trunk & sup. mesenteric a.
- Jejunum - jejunal branch of sup. mesenteric a.
- ileum - ileal branch of sup. mesenteric a.
What is the bulging sac at the beginning of the large intestine - point where SI meets LI?
Caecum
What is the depression outside the lateral surfaces of the ascending & descending colon?
right & left paracolic gutters
What separates the ascending colon from the transverse colon?
Right hepatic (liver) flexure
What separates the transverse colon from the descending colon?
Left splenic flexure
Large intestine divisions
- Caecum
- Ascending colon
- Transverse colon
- Descending colon
- Sigmoid (S-shape) colon
What structure joins the rectum and the sigmoid colon?
rectosigmoid junction (S3)
The tongue is divided into ant. & post. by the ____
sulcus terminalis
What are the saccules of the colon that give it its segmented appearance
Haustra
What anchors the small intestine?
mesentery
What is the alimentary canal made up of
- Oral cavity
- Pharynx
- Oesophagus
- Stomach
- Small intestine
- Large intestine
