Anterior Abdominal Wall and Celiac Trunk

Comprehensive practice flashcards covering the anatomy of the anterior abdominal wall, inguinal canal, abdominal regions, and the celiac trunk.

What are the two subdivisions of the dorsal body cavity?

Cranial and vertebral cavities.

What is the largest component of the ventral body cavity and what are its boundaries?

Abdominal cavity; ribs to pelvic girdle.

What are the layers of the anterolateral abdominal wall from superficial to deep?

Skin, fascia, muscles, peritoneum.

What are the two layers of subcutaneous tissue below the umbilicus?

Camper and Scarpa fascia.

What does Scarpa's fascia become as it continues inferiorly to the penis?

Dartos fascia.

What is the name of Scarpa's fascia as it extends posteriorly to the perineal region?

Colles fascia.

What is the clinical significance of Scarpa’s fascia?

Used for lower abdominal sutures.

Which four muscles primarily form the musculoaponeurotic wall of the abdomen?

External oblique, internal oblique, transversus abdominis, rectus abdominis.

What is the function of the pyramidalis muscle?

Tenses the linea alba.

What nerves provide innervation to the external oblique muscle?

Thoracoabdominal and subcostal nerves.

What are the primary actions of the external oblique muscle?

Flexes, rotates, compresses abdomen.

What is the origin of the internal oblique muscle?

Thoracolumbar fascia, iliac crest, inguinal ligament.

What is the innervation of the internal oblique muscle?

Thoracoabdominal and subcostal nerves.

Where does the rectus abdominis muscle insert?

Xiphoid process and costal cartilage.

What structure creates the '6-pack' appearance of the rectus abdominis?

Tendinous intersections.

Which structures are enclosed within the rectus sheath?

Rectus abdominis and pyramidalis muscles.

Above the arcuate line, how is the anterior layer of the rectus sheath formed?

By external and internal oblique aponeuroses.

Above the arcuate line, how is the posterior layer of the rectus sheath formed?

By the internal oblique and transversus abdominis.

What is the composition of the rectus sheath posterior layer below the arcuate line?

Only the transversalis fascia.

What is the alternate name for the arcuate line?

Semicircular line of Douglas.

Where is the arcuate line typically located?

About one-third from pubis to umbilicus.

Which hernia type is associated with the level of the arcuate line?

Spigelian hernias.

What is the origin of the thoracoabdominal nerves?

Lower intercostal nerves.

Which nerve runs along the inferior border of the 12th rib?

Subcostal nerve.

What is the origin of the iliohypogastric nerve?

Anterior ramus of L1.

What area of skin does the ilioinguinal nerve distribute to?

Lower inguinal region, mons pubis.

What does the median umbilical fold cover?

Median umbilical ligament.

What is found within the medial umbilical folds?

Occluded umbilical arteries.

What structure is covered by the lateral umbilical folds?

Inferior epigastric vessels.

Where is the supravesical fossae located?

Between median and medial folds.

What are the medial inguinal fossae more commonly known as?

Hesselbach triangles.

Which fossae include the deep inguinal rings?

Lateral inguinal fossae.

How is the inguinal ligament formed?

Thickening of external oblique aponeurosis.

Which muscle's fibers extend down to form the cremaster muscle?

Internal oblique muscle.

What does the transversalis fascia form in males regarding the inguinal canal?

Internal spermatic fascia.

What are the three layers of the spermatic cord in males?

External fascia, cremaster muscle, internal fascia.

What is the cause of an indirect inguinal hernia?

Patent processus vaginalis.

Where is an indirect inguinal hernia located relative to the inferior epigastric vessels?

Lateral to inferior epigastric vessels.

What is the primary cause of a direct inguinal hernia?

Weakness of transversalis fascia.

What activities can increase abdominal pressure?

Heavy lifting and coughing.

What are the four quadrants of the abdominal cavity formed by?

Median and transverse planes.

What organs are found in the epigastric region?

Stomach, liver, pancreas, spleen.

What is contained in the umbilical region?

Small intestine and large intestine.

What organs are located in the hypogastric region?

Bladder and reproductive organs.

What structures are located in the right hypochondriac region?

Liver, gallbladder, right kidney.

What is found in the right inguinal region?

Appendix and cecum.

What organs are located in the left hypochondriac region?

Spleen and left kidney.

What is found in the left inguinal region?

Descending and sigmoid colon.

Which organs are located in the right upper quadrant (RUQ)?

Liver, gallbladder, duodenum.

What are the contents of the left upper quadrant (LUQ)?

Stomach, spleen, pancreas.

What organs are located in the right lower quadrant (RLQ)?

Cecum, appendix, right ovary.

What is the diameter of the abdominal aorta?

About 2.5 cm.

What is the vertebral range of the abdominal aorta?

From T12 to L4.

What are the six major branches of the abdominal aorta?

Celiac trunk, SMA, IMA, renal arteries.

What are the three primary branches of the celiac trunk?

Left gastric, splenic, hepatic artery.

What are the two main branches of the common hepatic artery?

Proper hepatic, gastroduodenal arteries.

What branches does the splenic artery provide to the stomach?

Short gastric branches.

Which artery is a branch of the gastroduodenal artery?

Right gastroepiploic artery.

The proper hepatic artery gives rise to which branch?

Cystic artery.

What are the subdivisions of the proper hepatic artery?

Left and right hepatic arteries.

A 55-year-old male presents with severe abdominal pain and distention. What is the likely diagnosis?

Liver tumor or gallbladder disease.

During a routine check-up, a 42-year-old female reports chronic pain in the inguinal region. What type of hernia might she be experiencing?

Direct inguinal hernia.

A patient with COPD has a bulging area in the left inguinal region. What type of hernia is likely?

Indirect inguinal hernia.

A 65-year-old male presents with jaundice and weight loss. What abdominal structure could be affected?

Biliary tree or liver.

A 30-year-old female complains of back pain after eating. What organ could be involved?

Pancreas.

An 18-year-old male presents with severe testicular pain. What condition should be ruled out?

Testicular torsion.

A patient reports pain in the suprapubic area and difficulty urinating. What pathology would you suspect?

Bladder or urethra obstruction.

In a 70-year-old patient with abdominal swelling, what structures might be involved?

Liver dysfunction or heart failure.

A young female presents with lower abdominal pain. What anatomical structure is involved in an ectopic pregnancy?

Fallopian tube.

In a patient diagnosed with Crohn's disease, which organ is commonly affected?

Ileum.

A 50-year-old male with alcohol abuse has hematemesis. What structure is likely involved?

Esophagus or stomach.

A child with abdomen pain has a mass in the right lower quadrant. What is a likely diagnosis?

Appendicitis.

A woman in late pregnancy experiences upper abdominal discomfort. What anatomical changes might explain this?

Uterine enlargement displacing organs.

A 30-year-old male presents with unexplained weight loss. What concerning diagnosis might this suggest?

Lymphoma or malignancy.

A patient following surgery complains of nausea and vomiting. What complication should be considered?

Ileus or obstruction.

A teenager has lower abdominal pain and rebound tenderness. What condition should be suspected?

Appendicitis.

A 65-year-old female presents with shoulder pain after a fatty meal. What organ pathology should be considered?

Cholecystitis.

A patient has reflux and dysphagia. What anatomical structure might be compromised?

Lower esophageal sphincter.

A 45-year-old male presents with back pain and numbness in the leg. What might be causing this?

Lumbar disc herniation.

A 72-year-old male reports hematochezia and anemia. What structures should be assessed?

Colon lesions or disorders.

A young woman has severe pelvic pain during her menstrual cycle. What condition should be investigated?

Endometriosis or fibroids.

An elderly patient has sudden severe abdominal pain described as tearing. What vascular structure may be involved?

Abdominal aorta.

A child with recurrent abdominal pain might suffer from what gastrointestinal issue?

Celiac disease.

A diabetic patient reports recurrent UTIs. Which region should be evaluated?

Bladder and urethra.

A diabetic patient has a non-healing ulcer. What anatomical connections should be assessed?

Neuropathy and vascular disease.

A patient has severe constipation and recent bowel obstruction. Which part of the GI tract should be examined?

Sigmoid colon.

A 50-year-old female has a right abdominal mass and weight loss. Which organ is involved?

Right kidney or liver.

A man with a smoking history has swallowing difficulty and weight loss. What pathology is a concern?

Esophageal cancer.

A woman with chronic liver disease presents with ascites. What anatomical change could contribute?

Portal hypertension.

An infant has projectile vomiting after feeding. Which anatomical structure could be narrowed?

Pylorus.

An obese patient has an abdominal mass that appears during coughing. What condition should be suspected?

Ventral hernia.

A post-operative patient develops abdominal distension. What structure should be monitored?

Intestines for obstruction.

A chronic pancreatitis patient has fatty stools and weight loss. What component is dysfunctional?

Pancreas enzymes.

A 28-year-old male has sudden testicular pain after sports. What condition should be evaluated?

Testicular torsion.

A patient has acute abdominal pain and fever with diverticulitis history. Which colon segment is affected?

Sigmoid colon.

An older patient has chronic abdominal pain and bloating after meals. What issue may contribute?

Small intestinal obstruction.

A 60-year-old female presents with difficulty breathing and pleuritic chest pain. What condition should be evaluated?

Pulmonary embolism.

A 45-year-old male reports recurrent heartburn and regurgitation. What condition could be involved?

Gastroesophageal reflux.

A young male presents with leg swelling and pain. What condition might be suspected?

Deep vein thrombosis.

An elderly patient shows signs of confusion and fever. What underlying infection should be considered?

Urinary tract infection.