Abdominal wall and inguinal canal Flashcards
Name nine abdominal regions
- Left and right hypochondrium
- Epigastric
- Left and right lateral/ lumbar region
- Umbilical region
- left and right inguinal regions
- pubic region
Where does the translumbical line crosses
Umbilicus at level of L3/L4
Name the structures we find at the upper right quadrant
Liver, gallbladder, ascending colon, transverse colon
Name the structures find at the upper left quadrant
Stomach, spleen, transverse colon, descending colon
Name the structures found at the lower left quadrant
Descending colon
sigmoid colon
name the structures found at the lower right quadrant
ascending colon, caecum, appendix
Name the muscle that if found superficial anterior abdominal wall, and name the direction of fibers
External oblique muscle and the muscles are running inferomedial
Name the muscle that lies middle in the anterior abdominal wall and the direction of fibers
Internal oblique muscle
superiomedially
name the muscle that lie deep and the direction of fibers in the abdominal anterior wall
Transversus abdominis muscle
fibers runs transversely
Name the ligament that is attached to ASIS and pubic tubercle
inguinal ligament
The inguinal ligament attached where and where?
Attached to the ASIS and the pubic turbecle
The ligament formed by the reflected medially fibers of inguinal ligament
lacunar ligament
Where is the inguinal canal located?
Passageway between groin and abdomen
Runs superior and parallel to which ligament?
inguinal ligament
name the rings forming the inguinal canal
superficial and deep inguinal rings
The anterior wall of inguinal canal is formed by what?
Aponeurosis of the external oblique muscle
The posterior wall of inguinal wall is formed by what?
Transversalis fascia
Reinforced medially by the conjoint tendons (Inguinal falx)
what forms inguinal falx
transversus abdominis and internal oblique muscle
what makes the roof of inguinal canal
formed by arching fibers of transversus abdominis and internal oblique
what makes the floor of inguinal canal
medial half of the inguinal ligament
reinforced by the lacunar ligament medially
Explain the deep inguinal ring
Found midway between the ASIS and the pubic tubercle
lies directly lateral to the inferior epigastric artery and vein
formed by opening in the transversalis fascia
Explain the superficial inguinal rings
superior to the pubic tubercle
triangular opening in the aponeurosis
Of the external oblique muscle
has a medial and lateral crus surrounding contents
Apex lies superomedially and the base is at the pubic tubercle
Name the 3 arteries found in inguinal canal
- Testicular artery from the abdominal aorta
- artery to the ductus deferens from the inferior vesical artery
- Cremasteric artery from inferior epigastric artery
Name the 3 nerves found in the inguinal canal
- Genital branch of genitofemoral nerve
- Sympathetic and visceral afferent nerve fibers
- Ilioinguinal nerve gives sensory innervation to the upper medial thigh, anterior skin of the scrotum and the root of the penis
Name the other 3 structures present in the inguinal canal
3 other structures
Pampiniform venous plexus that will form testicular veins
Ductus deferens ascending coursing to the ejaculatory ducts
Lymphatic vessels
Name the fascial linings (Deep to superficial)
3 fascial linings (Deep to superficial)
Internal spermatic fascia from the transversalis fascia
Cremasteric muscle and fascia from the internal oblique muscle and fascia
External spermatic fascia from the external oblique muscle & aponeurosis
