31 Questions
Which artery descends along the costal margin in the abdominal wall?
Musculophrenic artery
Which artery runs deep to the rectus abdominis muscle?
External iliac artery
Which artery runs in the rectus sheath and parallel to the inguinal ligament?
External iliac artery
Which artery runs in the superficial fascia toward the umbilicus?
Superficial epigastric artery
Which artery continues beyond the ribs to descend in the abdominal wall between the internal oblique and transversus abdominis muscles?
Musculophrenic artery
Which artery runs on the deep aspect of the anterior abdominal wall, parallel to the inguinal ligament?
External iliac artery
Which artery runs in the superficial fascia along the inguinal ligament and the adjacent anterior thigh?
Superficial circumflex iliac artery
Where are the intrinsic ganglia of descending and sigmoid colon, rectum, and pelvic viscera located?
Pelvic prevertebral ganglia
Which level does the celiac ganglia serve?
T5–T9
Where are the prevertebral ganglia serving viscera and suprarenal glands located?
Abdominopelvic cavity
Which spinal nerves form the anterior rami for the pelvic (sacral) sympathetic trunk?
S2–S4
Where are the other abdominal prevertebral ganglia located?
Superior and inferior mesenteric, and of intermesenteric/hypogastric plexuses
Which ganglia serve the abdominal prevertebral ganglia at T10–T11 level?
Aorticorenal ganglia
Where are the postsynaptic sympathetic fibers for the cervical and upper thoracic located?
Cervical and thoracic cavity
Which ganglia serve the abdominal prevertebral ganglia at T5–T9 level?
Greater splanchnic
Where are the parasympathetic fibers for the anterior rami of S2–S4 located?
Pelvic prevertebral ganglia
Which ganglia serve the abdominal prevertebral ganglia at T12 level?
Least splanchnic
Which ganglia serve the abdominal prevertebral ganglia at T1–T4 level?
Superior cervical ganglia
Where are the sympathetic fibers for the pelvic (sacral) sympathetic trunk located?
Cervical and thoracic cavity
Which artery supplies the midgut-derived gastrointestinal tract?
Superior mesenteric artery
From which artery does the musculophrenic artery originate?
Internal thoracic artery
Which artery supplies the liver, gallbladder, stomach, pancreas, and duodenum?
Hepatic artery
Which artery enters the rectus sheath and supplies the inferior rectus abdominis and the medial part of the anterolateral abdominal wall?
External iliac artery
Which artery originates from the splenic artery and supplies the left portion of the greater curvature of the stomach?
Left gastro-omental artery
Which artery descends along the costal margin in the abdominal wall?
Musculophrenic artery
Which artery supplies the distal part of the large intestine, including the descending colon, sigmoid colon, and rectum?
Inferior mesenteric artery
Which artery runs deep to the rectus abdominis muscle?
Hepatic artery
Which artery runs superiorly and enters the rectus sheath?
External iliac artery
Which artery continues beyond the ribs to descend in the abdominal wall between the internal oblique and transversus abdominis muscles?
Abdominal aorta
Where do the splanchnic nerves carry sympathetic and parasympathetic fibers from?
Their origin to their destination
What is the role of the splanchnic nerves in the autonomic regulation of abdominal organs?
Crucial role
Study Notes
Principal Arteries of Anterolateral Abdominal Wall
- Musculophrenic artery originates from the internal thoracic artery and descends along the costal margin, supplying the abdominal wall of the hypochondriac region.
- The abdominal aorta gives rise to arteries that continue beyond the ribs to descend in the abdominal wall between the internal oblique and transversus abdominis, supplying the lateral region.
- The external iliac artery runs superiorly and enters the rectus sheath, supplying the inferior rectus abdominis and the medial part of the anterolateral abdominal wall.
- The arterial supply to the esophagus, stomach, duodenum, liver, gallbladder, pancreas, and spleen includes the celiac trunk, left gastric, splenic, and common hepatic arteries.
- The left gastro-omental artery arises from the splenic artery and supplies the left portion of the greater curvature of the stomach.
- The hepatic artery, a branch of the celiac trunk, supplies the liver, gallbladder, stomach, pancreas, and duodenum.
- The superior mesenteric artery supplies the midgut-derived gastrointestinal tract, including the jejunum, ileum, transverse colon, and ascending colon.
- The inferior mesenteric artery, originating from the abdominal aorta, supplies the distal part of the large intestine, including the descending colon, sigmoid colon, and rectum.
- The autonomic innervation of the abdominal viscera involves splanchnic nerves that carry sympathetic and parasympathetic fibers from their origin to their destination.
- The splanchnic nerves are part of the autonomic nervous system and carry different fiber types, including sympathetic and parasympathetic fibers.
- These splanchnic nerves originate from specific levels of the spinal cord and have destinations in the abdominal viscera, playing a crucial role in the autonomic regulation of abdominal organs.
- Understanding the principal arteries and autonomic innervation of the anterolateral abdominal wall is vital for comprehending the vascular supply and neural regulation of the abdominal organs.
Test your knowledge of the principal arteries of the anterolateral abdominal wall with this quiz. Identify the nerve origin, course, and distribution of key arteries like the musculophrenic and internal thoracic artery.
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