Blood Vessels III PDF

Anterior cerebral a. Middle cerebral a. Blood Vessels III: Thorax and Abdomen Course Learning Objective Cardiovascular: Recall the structures that allow for the exchange of gases and nutrients throughout the body by tracing blood flow and identifying related struc...

Anterior cerebral a. Middle cerebral a. Blood Vessels III: Thorax and Abdomen Course Learning Objective Cardiovascular: Recall the structures that allow for the exchange of gases and nutrients throughout the body by tracing blood flow and identifying related structures in the cardiovascular system.  Lecture Learning Objectives 1. Describe the boundaries of the 4. Compare and contrast the vessels that branch from the aorta. Pay specific thoracic cavity, relating them to attention to : how we identify and label a. What main branch from the aorta provides which organs(celiac trunk, associated vessels superior mesenteric, inferior mesenteric, and renal aa.) 2. Visually identify the arteries and b. If the organs supplied are intra or retroperitoneal veins of the thoracic cavity, noting the asymmetry between 5. Visually identify the vessels of the the venous and arterial supplies abdominal cavity and anterior abdominal wall. 3. Recall the general location of the 6. Describe the differences between abdominopelvic organs hepatic portal and inferior vena cava drainage in the venous system Vessels of the Thorax  LO 1 Thoracic Cavity Boundaries Superior thoracic aperture Superior thoracic aperture- vessels from mediastinum to head and neck exit here Boundaries: 1st thoracic vertebra, 1st rib, and manubrium of sternum Inferior thoracic cavity boundaries Descending thoracic aorta and inferior vena cava pass through diaphragm and continue to supply abdomen, pelvis, and lower limbs IVC- caval opening at 8th thoracic level Aorta- aortic hiatus at 12th thoracic level Gray’s Basic Anatomy, Drake et al., 2018  Thoracic Cavity Arteries LO 2 Subclavian a. Internal thoracic aa. Descending thoracic aorta Anterior intercostal aa. Posterior intercostal aa. Musculophrenic a. Superior epigastric a.  Superficial LO 2b LO 4-5 Vessels of the Abdominal Wall Internal thoracic a. Superior epigastric a. Musculophrenic a. Inferior epigastric a. Femoral a. *Paired veins with same names drain area (not testable)  LO 2 Thoracic Cavity Brachiocephalic v. Veins Internal thoracic v. Azygos v. Anterior Posterior intercostal vv. intercostal vv. Hemiazygos v. Thoracic Cavity Veins- Internal posterior wall Azygos v. Thoracic Thoracic aorta aorta Orientation and Context for Abdominal Vessels  LO 3 Abdominal Contents LO 3 LO 3 LO 3  LO 3 Diaphragm Abdominal esophagus Stomach Small intestine Duodenum Jejunum Ileum Large intestine Ascending Transverse Descending R L  LO 3 Diaphragm Liver Gall bladder Kidneys Spleen Pancreas Urinary bladder R L Vessels of the Abdomen  Vessels of the Diaphragm LO 4-5 Posterior Abdomen Inferior Deep to gastrointestinal (GI) tract vena cava and accessory organs. Retroperitoneal Aorta Supply and drain blood from several organ systems including GI, urinary, and reproductive Series of branches come from the abdominal aorta/drain into the inferior vena cava Some smaller arteries and veins share the same name  LO 4-5 Anterior Arteries of the Abdominal Aorta Abdominal aorta Begins at the aortic hiatus of the diaphragm at level of T12 vertebra Gives off three anterior branches that supply the GI tract and spleen 1. Celiac trunk 2. Superior mesenteric a. 3. Inferior mesenteric a.  Anterior Arteries of the LO 4-5 Abdominal Aorta Celiac trunk Abdominal esophagus, stomach, proximal portion of small intestine (duodenum), pancreases, liver, gallbladder, and spleen Superior mesenteric a. Rest of small intestines (duodenum, jejunum, ileum), proximal portion of large intestines (cecum, ascending colon, 2/3 of transverse colon), and appendix Inferior mesenteric a. Distal portion of the large intestines (colic flexure, descending colon, sigmoid colon, rectum, proximal portion of anal canal) Celiac Trunk- Vessels of the superior abdomen  Celiac Trunk *Liver and gallbladder reflected superiorly Artery name What is supplies Left gastric Stomach Left gastric a. Splenic Spleen, pancreas Liver Common hepatic a. divides into: Splenic a. Hepatic a. Liver, gallbladder, Spleen stomach Cystic a. Gallbladder Hepatic a. Gastroduodenal Duodenum, stomach, and pancreas Pancreas Gastroduodenal a. Left gastric a. Hepatic artery Common proper hepatic a. Duodenum Common hepatic a. Splenic a Gastroduodenal a. LO 4-5  Common Celiac Left LO 4-5 hepatic a. trunk gastric a. Splenic a. Hepatic a. Liver Gallbladder Spleen Gastroduodenal a. Stomach Mesenteric Vessels  LO 4-5 Superior and Inferior Mesenteric aa. Celiac trunk Kidney Superior mesenteric a. Inferior mesenteric a. Artery name What is supplies Superior mesenteric Most of small intestines: Distal ½ of duodenum, jejunum, ileum Proximal ½ of large intestines: Ascending colon, ½ of transverse colon Inferior mesenteric Distal large intestines: ½ of transverse colon, descending colon, sigmoid colon, rectum  BLOCK 3 MATERIAL Middle colic a. Superior (cut) mesenteric a. Left colic a. Right colic a. Superior mesenteric a. Ileocolic a. Jejunal aa. Sigmoid aa. Ileal aa. Inferior mesenteric a. Superior Paired veins with rectal a. same names drain area Abdominal Venous Drainage  LO 6 Venous Drainage of the Abdomen Divided into two parts that are connected A. Hepatic portal system Most organs in abdomen, GI tract B. Inferior vena cava drainage Kidney/renal Adrenal (suprarenal) Gonadal Pelvis Lower limb  LO 6 Portal Vein Drainage of Abdomen Portal vein Drains blood from Stomach Spleen Pancreas Gallbladder Abdominal part of the GI tract Passes blood through hepatic sinusoids in liver, empties into inferior vena cava via hepatic vv. Formed by union of Splenic v. Drains inferior mesenteric v. Superior mesenteric v. Also drains para-umbilical veins (obliterated umbilical v.) and cystic v.  Liver Splenic v. LO 5-6 Hepatic portal v. Spleen Superior mesenteric v. Inferior mesenteric v. Portal Vein Drainage of Abdomen  LO 5-6 Inferior vena cava Splenic v Portal Vein Drainage of Abdomen Hepatic portal v. Spleen Pancreaticoduodenal vv. Great pancreatic v. (cut) Organ Venous drainage Pancreas Great pancreatic v. Inferior mesenteric v. Pancreaticoduodenal v. Spleen Splenic v. Superior Small intestine, Superior mesenteric v. mesenteric v. proximal large intestine ½ of large intestine, Inferior mesenteric v. rectum  LO 5-6 Lateral Vessels of Aorta and IVC Supply and drainage to kidneys and suprarenal Suprarenal aa. glands Suprarenal gland Renal= of the kidney Suprarenal v. Renal a. Renal a. Kidney Renal v. Kidney Inferior vena cava Abdominal aorta  LO 5-6 Inferior vena Renal v. cava Superior mesenteric a. Abdominal Inferior mesenteric a. aorta