Anatomy of Subscapularis Muscle
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Questions and Answers

Where is the obliquus abdominis internus muscle situated?

Under the external oblique muscle

What is the origin of the obliquus abdominis internus muscle?

Lateral angle of ilium and the adjacent part of poupart's ligament

What is the action of the obliquus abdominis internus muscle?

Similar to the external oblique muscle

What forms the anterior wall of the inguinal canal?

<p>The medial part of obliquus abdominis internus muscle</p> Signup and view all the answers

Where is the abdominal or internal inguinal ring located?

<p>At the upper opening of the inguinal canal</p> Signup and view all the answers

What is the blood supply to the obliquus abdominis internus muscle?

<p>Circumflex iliac, intercostal, and lumbar arteries</p> Signup and view all the answers

What is the nerve supply to the obliquus abdominis internus muscle?

<p>First two lumbar and last thoracic spinal nerves</p> Signup and view all the answers

Where does the rectus abdominis muscle extend from and to?

<p>From sternum to pubis</p> Signup and view all the answers

What separates the two rectus abdominis muscles at the pelvis?

<p>An interval of about 2 to 4 inches</p> Signup and view all the answers

What forms the floor of the abdomen where the rectus abdominis muscles are located?

<p>Aponeuroses of the oblique and transverse muscles and the abdominal tunic</p> Signup and view all the answers

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