Transcript Cross Sectional Anatomy

Cross Sectional Anatomy
Chris Kowtko, MSRS, R.T. (R)(M)
ABDOMEN
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Musculo-Skeletal
System
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Psoas muscle
Crura of Diaphragm
Vertebra
Ilium
Pubic
Ribs
ABDOMEN
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Digestive system
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Esophagus
Stomach
Small intestine
Large intestine
Accessory organs
• Liver & gall bladder
• Bile ducts
• Pancreas
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Esophagus
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Anterior to vertebral
bodies; aorta
Posterior & medial to
stomach
Stomach
Fundus-superior to EG
junction; very
posterior
Body-more anterior
than fundus
Pylorusretroperitoneal &
medial
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Small Intestine
Duodenumretroperitoneal
Jejunum-anterior
midabdomen
Ileum-anterior in pelvis
Large intestine
Cecum-retroperitoneal
Ascending colonretroperitoneal
Hepatic flexure-posterior
Transverse colon-most
anterior
Splenic flexure-most
superior
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Descending colonretroperitoneal
Sigmoid colonanterior
Rectumretroperitoneal
Accessory Organs
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Liver
Right lobe
Left lobe
Quadrate lobe
Caudate lobe
Falciform ligament
Ligamentum
venosum
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Gall bladder
Pancreas
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Head
Tail
Body
Lymphatic System
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Spleen
LUQ
 Posterior to
stomach
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Endocrine System
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Adrenal Glands
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Retroperitoneal
Superior poles of
kidneys
Urinary System
Kidneys
 Ureters
 Urinary Bladder
 Urethra
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Kidneys
Retroperitoneal
Cortex-doughnut
Rt-post. to liver
Lt-post. to stomach,
pancreas, spleen
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Ureters
Retroperitoneal
Ant. to IIA & IIV;
Post. to EIA & EIV
Urinary Bladder
Post. to symphysis
Urethra
Vascular System
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Arterial Phase
Venous Phase
Hepatic-Portal
system
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Veins larger in
diameter
Upper abd-Veins
anterior to arteries
Lower abd/Pelvisarteries anterior to
veins
ABDOMEN
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Abdominal
Aorta
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Fairly midline
Celiac Trunk
Branches:
Left Gastric
Splenic artery
Hepatic artery
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Superior
Mesenteric
Artery
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Just below Celiac
Same level as Lt
renal vein
entering IVC
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Renal Arteries
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Inferior to SMA
Rt-longer
Lt-superior to Rt
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Common Iliac
Arteries
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Bifurcation of
Aorta
Level of L4
Superior to
formation of
IVC
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Internal iliac
arteries
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Posterior to
external
External iliac
arteries
IIA posterior to
EIA
ABDOMEN
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Venous Phase
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Inferior vena cava
Renal v.
Common iliac v.
Internal iliac v.
External iliac v.
Hepatic-Portal System
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Hepatic v.
Portal v.
Splenic v.
Superior mesentaric v.
Inferior mesentaric v.
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Internal &
External Iliac
veins
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Common Iliac
veins
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Inferior Vena
Cava
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Ascends on Rt
side of Aorta
Largest vein
Retroperitoneal
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Renal veins
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Lateral aspects of
IVC
Lt-longer;
Anterior to aorta
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Hepatic veins
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Drain into IVC
Superior to Portal
vein
Most superior of
liver vessels
Hepatic Portal System
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Porta Hepatis
Portal vein:
IMV
SMV
Splenic vein
CHEST
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Cardiovascular
System
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Heart
Great vessels
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Aorta
Superior vena cava
Inferior vena cava
Pulmonary artery
Pulmonary vein
Respiratory System
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Trachea
Primary bronchii
R & L lung
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Respiratory
System
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Trachea
Primary bronchii
R & L lung
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Heart
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4 chambers
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Right atrium
Right ventricle
Left atrium
Left ventricle
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Right Atrium
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Right Ventricle
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most anterior
Left Atrium
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most superior
most posterior
Left ventricle
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most inferior
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Arterial Phase
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Aortic arch
• Brachiocephalic a.
• R Common
carotid a.
• R Subclavian a.
• L Common carotid
a.
• L Subclavian a.
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Aortic Arch
Ascending Aorta
Descending Aorta
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Venous Phase
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Superior vena cava
•R&L
Brachiocephalic v.
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Superior Vena
Cava
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Pulmonary Phase
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Pulmonary
trunk/artery
• R & L Pulmonary
Arteries
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Pulmonary veins
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2 from Right
2 from Left