MSK5 - Abdominal Wall Muscles and Inguinal Canal

The ___________ muscle is situated on lateral and anterior parts of the abdomen; largest and most superficial of three muscles in this region

The obliquus externus abdominus attaches on the external surface of the _____________ and inserts on the __________, ________ and __________

Muscles of the anterior abdominal wall are innervated by_____________

Movements of the obliquus externus abdominis muscle is to _______, ____________, and ______________

The ________________ muscle is situated on lateral and anterior parts of abdomen; thinner and smaller than externus – irregular quadrilateral form

The obliquus internus abdominis muscle does the following movements: __________, __________, and ____________

The ___________ originates on the lateral 1/3 of inguinal ligament, anterior 2/3 of iliac crest, thoracolumbar fascia

The obliquus internus abdominus inserts on the _______ and the _______

The _________________ is the most internal of the flat muscles of the abdomen

The transversus abdominus muscle extends from the ______________, iliac crest, thoracolumbar fascia and cartilages of the ___________ and inserts on the ________

The transversus abdominis muscle's main movement is to __________________

The _____________ muscle is a long flat muscle extending the whole length of abdomen and separated from its opposite side by linea alba

The rectus abdominis muscle is crossed by three fibrous bands called ____________

The rectus abdominis extends from the ____________ and __________ to insert on the ________________ and _______________

The main actions by the rectus abdominis muscles include _________ of the trunk at spinal joints, ___________ of pelvis and _________________

Layers of the abdominal wall include (7)

___________ sits between Camper’s fascia and rectus sheath; anchored laterally to ____________ of the external oblique and medially to the ___________ of rectus sheath

_______________ thick superficial layer of adipose and areolar connective tissue sitting just deep to skin. It is more prominent in lower aspect of abdomen ___________

The ______________ is composed of aponeurosis of the three flat muscles (external and internal oblique, transversus abdominus) as they converge in the midline to form the median ____________; durable, resilient and fibrous compartment that contains and protects the rectus abdominus

The composition of the rectus sheath changes inferior to the umbilicus and arrangement of muscle layers changes depending on location with respect to the __________

The arcuate line is located ½ of the distance between ____________________

____________ to the arcuate line, the full aponeurosis of the external oblique and anterior 1/2 of the aponeurosis of the internal oblique creates the ___________

In the rectus sheath superior to the ____________, the posterior lamina (sheet) is made up of the __________ of the aponeurosis of the internal oblique and full aponeurosis of _________________

___________ to the arcuate line the anterior lamina sheet of the rectus sheath is composed of _____________________

Inferior to the arcuate line, the posterior lamina sheet of the rectus sheath is composed of ______________ of the abdominal muscle aponeurosis

The internal aspect of rectus abdominus muscle is in direct contact with the ____________________

The quadratus lumborum muscle originates on the ____________ and ___________ and inserts on rib ___ and ____ of L1-L4

The quadratus lumborum is innervated by the ventral rami of spinal nerves _________

Functions of the quadratus lumborum includes _____________ and _____________ of the trunk. It also _______________ during inspiration

Psoas major originates on the _______________ of L1-L5 and inserts on the ____________

Psoas major is innervated by the ___________

Psoas major functions include _________ and __________ of the thigh. It also functions to _________ and ________ the trunk

Ipsilateral movements of psoas major include _______, _________, and ________. Bilateral movements include _________________

Iliacus originates on the ______ and ________. It inserts on the _____________

Iliacus is innervated by the ___________

Main actions of iliacus include _________ and ___________ of the thigh

The inguinal canal is 4cm long and extends from the ___________ to the ___________

The deep inguinal ring is an oval shaped opening in the ______________; situated just above midinguinal point and lateral to the stem of the inferior epigastric vessels

The superficial inguinal ring is a triangular gap in the ________________

Contents of the inguinal canal include:

The _________ is formed by fusion of the lowest aponeurotic fibers of the internal oblique and of the transversus abdominus muscles; lies behind superficial inguinal ring and strengthens the abdominal wall at this point

Which muscle is the most internal of the flat muscles of the abdomen?

Which muscle is situated on the lateral and anterior parts of the abdomen, and is the largest and most superficial of the three muscles in this region?

Which muscle extends along the whole length of the front of the abdomen, and is separated from its fellow of the opposite side by the linea alba?

Which muscle is the most internal of the flat muscles of the abdomen?

What is the composition of the rectus sheath inferior to the arcuate line?

What is the location of the deep inguinal ring?

The obliquus externus abdominis muscle is the largest and most superficial of the three muscles in the abdominal region.

The transversus abdominis muscle is situated between the internal abdominal oblique muscle and the rectus abdominis muscle.

The rectus sheath is composed of the aponeurosis of the external oblique muscle and the full aponeurosis of the internal oblique muscle.

True or false: The rectus sheath superior to the arcuate line is composed of the anterior lamina (sheet) made up of the full aponeurosis of the external oblique and anterior 1/2 of the aponeurosis of the internal oblique, and the posterior lamina (sheet) made up of the posterior 1/2 of the aponeurosis of the internal oblique and full aponeurosis of the transversus abdominis.

True or false: Camper's fascia sits between Camper's fascia and the rectus sheath, anchored laterally to the aponeurosis of the external oblique and medially to the linea alba of the rectus sheath.

True or false: The composition of the rectus sheath changes inferior to the arcuate line, with the anterior lamina (sheet) being composed of the aponeuroses of all 3 abdominal muscles and the posterior lamina (sheet) being composed of no layer.