Abdominal and Pelvic Viscera Flashcards
What is the esophagus comprised of?
- Alimentary canal
2. Accessory organs (teeth, tongue, liver, pancreas, etc.)
Esophagus is a __________ tube that extends between the distal end of the laryngopharynx (C___) and stomach (T___).
muscular; CVI; TXI
Arterial supply for the esophagus comes from branches of the ______ aorta and nerve supply mainly by CN ___.
thoracic; X
The esophagus has important relations to what 3 structures?
- Trachea
- Aortic arch
- Right atrium of heart
How long is the esophagus? What other 3 structures have similar length?
25cm; stomach; duodenum; ureter
In what area of the mediastinum does the esophagus sit?
Posterior
What level of the T spine does the esophagus pass through
T10
In what regions of the abdomen is the stomach located?
Epigastric and left hypochondriac region
What 3 parts can the stomach be subdivided into?
- Fundus
- Body
- Pyloric part
What are the left and right borders of the stomach known as?
Greater and lesser curvatures
The entrance and exit of the stomach are guarded by the _______ and _______ respectively.
cardia; pylorus
What is the capacity of the stomach?
1 L
What does the duodenum surround?
Head of pancreas
What are the 4 segments of the duodenum?
- Superior
- Descending
- Inferior
- Ascending
The ______ segment receives the secretions of the pancreas and bile (liver).
second (descending)
The inferior vena cava and the aorta pass (anterior/posterior) to the duodenum.
POSTERIOR
The jejunum makes up the proximal __/5 and the ileum makes up the distal __/5 of the Sm. I.
2;3
The ______ has a thicker wall, narrower lumen and fewer arteries compared to the _______.
jejunum; ileum
Chemical digestion mostly takes place in the _______ whereas absorption of nutrients occurs mostly in the ______.
jejunum; ileum
What does the Lg. I consist of?
- Cecum
- Appendix
- Colon
- Rectum
- Anal canal
What are the 4 parts of the colon?
- Ascending
- Transverse
- Descending
- Sigmoid
The cecum receives the content of ileum though the _________ valve.
ileocecal
The appendix is usually attached _____ to the distal end of the cecum.
medial
In the colon, longitudinal smooth muscles are organized in the form of _____ muscular bundles. These muscles are called ______ _____.
3; tenia coli
Contraction of the tenia coli lead to saclike structures known as the ______ ____.
haustra coli
What is the name given to the bend between the ascending and transverse colon? Between the transverse and descending ?
- Hepatic flexture
2. Splenic flexture
What are the 3 major branches of the abdominal aorta supplying the GI tract?
- Celiac
- Superior mesenteric
- Inferior mesenteric
What does the celiac artery supply?
- liver
- stomach
- pancreas
- spleen
- duodenum
What does the superior mesenteric artery supply?
- duodenum
- jejunum
- ileum
- pancreas
- cecum
- appendix
- colon
What does the inferior mesenteric artery supply?
- colon
- rectum
- anal canal
___________ plexuses are responsible for supplying the GI tract.
pre-vertebral
What do the pre-vertebral plexuses receive input from?
- pre-ganglionic sympathetic nerves (splanchnic)
- pre-ganglionic parasympathetic nerves (pelvis and vagus splanchnics)
- Afferent (sensory) visceral nerves
Pre-vertebral plexuses are _______ plexuses formed in front of the abdominal aorta.
mixed
_________ fibres will synapse at the level of the pre-vertebral ganglia.
sympathetic
__________ fibres only bypass the pre-vertebral ganglia and synapse at the level of target organ within their visceral (enteric) ganglia.
parasympathetic
The liver is located in what two areas?
- right hypochondriac
2. epigastric
What are the two surfaces of the liver?
- diaphragmatic
2. visceral
The anterior surface of the liver is attached to the posterior aspect of the anterior abdominal wall by the _________ ligament.
falciform
The superior surface of the liver is attached to the under surface of diaphragm by the __________ ligaments.
coronary
On the visceral surface of the liver, one can find the ________ ________ where blood vessels, nerves, and bile duct enter/ leave.
porta hepatis
The ______ lobe of the liver is located beside the gall bladder (inferior and anterior), and the ______ lobe is located superiorly and posteriorly.
quadrate; caudate
What three veins collect venous blood before joining together to form the large portal vein?
- superior mesenteric
- inferior mesenteric
- splenic