Flashcards in Gastrointestinal Anatomy Deck (88)
Where is the GI derived from?
What gives rise to the esophagus, stomach, proximal half of the duodenum, liver, gallbladder, and pancreas?
What gives rise to the distal third of the transverse colon to the proximal half of the anal canal?
What gives rise to the distal half of the duodenum, small intestine, proximal half of large intestine up to the proximal 2/3 of transverse colon?
How often does Meckel's diverticulum occur? Where does it occur?
2%; 2 feet proximal to the ileocecal junction
What region of the abdomen contains the stomach, duodenum, and pancreas?
What region of the abdomen contains the kidneys?
Right and left flank
What region contains of the abdomen liver and gallbladder?
What region of the abdomen contains the bladder and uterus?
What region of the abdomen contains only the small intestine?
What region of the abdomen contains the left ovary, left uterine tube, and sigmoid colon?
Left iliac fossa
What region of the abdomen contains the spleen?
What region of the abdomen contains the appendix, right ovary and right uterine tube, and cecum?
Right iliac fossa
What dermatome innervates the level of the xiphoid process?
What dermatome innervates the level of the umbilical region?
What dermatome innervates the level of the inguinal region?
What is immediately below skin in the anterior abdominal wall?
What is the outer layer of the subcutaneous abdominal tissue is continuous with the fatty subcutaneous layer of the rest of the body?
What layer of subcutaneous fascia is present only in the lower abdomen?
Membranous or Scarpa's fascia
What does scarpa's fascia continue as?
Colles fascia in the scrotum and Buck's fascia in the penis
What is the lateral edge of the rectus sheath?
What three structures are medial to the linea semilunaris?
Anterior layer of the rectus sheath
Rectus abdominis muscle
Posterior layer of the rectus sheath
Other than skin, subcutaneous fascia, and muscle, what are the remaining 3 layers?
Transversalis fascia, extraperitoneal fat, and parietal peritoneum
What levels of innervation supply the abdominal wall?
T7-11, subcostal T12, and Iliohypogastric/ilioinguinal L1
What forms the anterior layer of the rectus sheath above the arcuate line?
External oblique aponeurosis
Anterior layer of the internal oblique aponeurosis
What forms the posterior layer of the rectus sheath above the arcuate line?
Posterior layer of the internal oblique aponeurosis
Aponeurosis of transversus abdominus
What forms the anterior layer of the rectus sheath below the arcuate line?
The aponeurosis of the internal and external oblique and the aponeurosis of the transversus abdominus
What forms the posterior layer of the rectus sheath below the arcuate line?
Only the the transversalis fascia
Where is the arcuate line located?
Posterior to the rectus muscle midway between the umbilicus and the symphysis