BPK 326 - Abdominal Diagrams/Cross Sections

External Oblique Muscles (image)

Internal Oblique Muscles (image)

Transverse Abdominis (Image)

Rectus Abdominis (Image)

Quadratus Lumborum (image)

INguinal Ligament

ligament extending from pubic bone to anterior superior iliac spine, forming lower border of abdomen

Rectus Sheath

Fibrous sleeve enclosing the rectus abdominis

Mostly T2-L1

Abdominal Muscle Innervation

Cardia

where the stomach meets the esophagus

Fundus

Superior round part of organ

Will show up hypodense in CT (full of air)

Pyloric Sphincter

seperates the stomach from the duodenum (small intestine)

Lesser Omentum

Tethers stomach to liver

Right Hypochondrium Region

1

Right Flank Region

4

Right Inguinal (groin) Region

7

Epigastric Region

2

Umbilical Region

5

Pubic Region

8

Left Hypochondriac Region

3

Left Flank Region

6

Left Inguinal Region

9

Transverse (Horizontal) Quadrant Division

Divides the abdomen at the level of the umbilicis (belly button)

Sagittal (Vertical) Quadrant Division

Divides the abdomen at the midline

Layer of peritoneum that suspends the jejunum and ileum from the posterior abdominal wall

Mesentery

Descending Aorta (Image)

Common Iliac Arteries (Image)

Celiac Trunk

Common Hepatic Artery

Splenic Artery

Left Gastric Artery

Cephalic Trunk Divisions

Common Hepatic Artery

Supplies the liver

Splenic Artery

supplies the spleen

Gastric Artery

supplies the stomach

Superior Mesenteric Artery

supplies the digestive tract from lower duodenum

Supplies the descending colon, the sigmoid colon, and part of the rectum

Inferior Mesenteric Artery

Adrenal Glands (image)

Renal Cortex (image)

Renal Corpuscles

Aldosterone promotes reabsorption of Na+ from urine by the:

Distal Renal Tubules

Point of initial reabsorption

Proximal Renal Tubules

Extensions of cortex in between pyramids

Renal Columns

inner portion of the kidney

Contain urinary tubules and Blood vessels

Renal Medulla

Triangular-shaped areas of tissue in the medulla of the kidney

Renal Pyramids

filters blood to remove waste and filters blood again to return needed nutrients and refine down the actual waste products

Nephron

Deepest portion of the kidneys, receives urine

Renal Pelvis

Puborectalis (image)

Pubococcygeus (image)

Iliococcygeus (image)

extends from sides of the uterus to the lateral wall and floor of the pelvis

holds the uterus in position

Broad Ligament

Binds the uterus to the anterior body wall

Round Ligament

A ridge of bone that runs inferiorly and anteriorly from the auricular surface

Arcuate Line

Inguinal Ligament

Formed by common bile duct and pancreatic duct

Heptopancreatic Ampulla

Portal Triad (image)

Made up of common hepatic artery, hepatic portal vein, and common bile duct

Portal Triad

Starts after the diaphragm ends

Abdominal Aorta (origin)

Ridges on the intestines

Hostra

Liver

#10

Pulmonary Vein

#13

Inferior Vena Cava

#15

Descending Aorta

#32

Spleen

#39

Stomach

#41

Esophagus

#43

Transverse Colon

#46

Descending Colon

#41

Pancreas

#5

Gall Bladder

#14

Duodenum

#13

Ascending Colon

#9

Jejunum

#54 and #57

Ureter

#42 and #6

Urinary Bladder

#17

Sigmoid Colon

#62

Rectus Abdominis

#1

Rectus Sheath

#3

Linea Alba

#2

External Obliques

#4

Transverse Abdominis

#5

Internal Obliques

#6

Quadratus Lumborum

#7

T10

Crossection

T12

Crossection

L1

Crossection

L3

Crossection

L5

Cross Section