28 Questions
Which of the following is NOT a content of the inguinal canal?
Somatic nerves
What is the shape of the deep inguinal ring?
Oval
Where is the superficial inguinal ring located?
External oblique aponeurosis
What is the function of the conjoint tendon?
Strengthens the abdominal wall at the superficial inguinal ring
Which nerve is present in the inguinal canal in both males and females?
Ilioinguinal nerve
What is the direction of the inguinal canal?
Downward and medialward
What is the length of the inguinal canal?
4cm
Which muscles provide the aponeurotic fibers for the conjoint tendon?
Internal oblique and Transervsus abdominis
What is the location of the superficial inguinal ring?
Below the deep inguinal ring
Which muscle is the largest and most superficial of the three muscles in the lateral and anterior parts of the abdomen?
Obliquus externus abdominis
Which muscle inserts onto the lower 3 ribs?
Obliquus internus abdominis
Which muscle is the most internal of the flat muscles of the abdomen?
Transversus abdominis muscle
Which muscle extends the whole length of the abdomen and is separated from its opposite side by the linea alba?
Rectus abdominis
Which layer of the abdominal wall is composed of the aponeurosis of the three flat muscles (external and internal oblique, transversus abdominis) as they converge in the midline to form the median linea alba?
Rectus sheath
Which layer of the abdominal wall sits between Camper’s fascia and the rectus sheath?
Scarpa’s fascia
Which muscle fixes rib 12 during inspiration and performs extension and lateral flexion of the trunk?
Quadratus lumborum
Which muscle laterally rotates the thigh (ipsilateral), and laterally flexes the trunk (ipsilateral)?
Psoas Major
Which muscle is responsible for flexion of the thigh?
Iliacus
Which muscle is the most internal of the posterior abdominal wall muscles and originates from the iliac crest and iliolumbar ligament?
Quadratus lumborum
Quadratus Lumborom is inervated by the ventral rami of spinal nerves...
T12 + L1-L4
Which nerve innervates the iliacus?
Femoral nerve
Which of the following is the origin of Psoas major?
L1-L5
Both Iliacus and Psoas major insert onto the greater trochanter of the femur
False
Quadratus Lumborum inserts onto
Rib 12 + TPs of L1-L4
List two muscles that originate from the liac crest
Internal oblique performs contralateral rotation
False
Transervsus Abdominis, Internal Oblique and External Oblique all insert onto Linea alba
True
Which muscle inserts onto iliac crest? (Hint- this is the only abdominal muscle that inserts onto the iliac crest)
External Oblique
Test your knowledge of the muscles and anatomy of the anterior and posterior abdominal wall, as well as the inguinal canal. This quiz covers topics such as muscle attachment, location, innervation, and main actions/roles. Get ready to flex your anatomy knowledge!
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