Flashcards in Anatomy Lecture 5 Abdominal Incisions Deck (48)
Name 3 different common surgical incisions on the abdomen
Suprapubic 'bikini line' incision
What common operations are performed using a suprapubic 'bikini line' incision?
Lower segment caesarean section
Name the layers cut through in a lower segment caesarean section
What abdominal wall muscle attaches "between lower ribs and iliac crest, pubic tubercle and linea alba"?
What abdominal wall muscles attaches "between lower ribs, thoracolumbar fascia, iliac crest and linea alba"?
Internal obliques and transversus abdominis
What direction to the fibres of the external obliques run?
Hands in pockets - same as external intercostals
What direction to the fibres of the internal obliques run?
Hands on chest - same as internal intercostals
What direction to the fibres of the transversus abdominis run?
What is the linea alba?
Midline blending of aponeuroses
What is the superior attachments of the rectus abdominis?
Xiphoid process and costal cartilages
What is the inferior attachments of the rectus abdominis?
Pubic bones - symphysis
What is the name of the part of the rectus abdominis that divides each rectus abdominis into 3 or 4 smaller muscles?
What is the function of the tendinous intersections of the rectus abdominis?
Improved mechanical efficiency
What does the linea alba run between?
Xiphoid process to the pubic symphysis
The __________ is immediately deep to superficial fascia
What is the rectus sheath formed of?
combined aponeuroses of anterolateral abdominal wall muscles
The rectus sheath surrounds the ______
Following abdominal incisions, the rectus sheath should always be stitched closed. T or F
(to increase the strength of the wound and reduce the risk of wound complications e.g. incisional hernia)
Name the 2 parts of the rectus sheath?
Anterior and posterior
At the level of a suprapubic incision, what parts of the rectus sheath are cut?
Only anterior part
At the level of a suprapubic incision, where is the anterior part of the rectus sheath in relation to the rectus abdominis?
(here formed of external oblique, internal oblique and transversus abdominis aponeurosis)
What layer of the abdominal wall is between the transversus abdominis and extra-peritoneal fat?
(deep to extra-peritoneal fat is parietal peritoneum)
The nerve supply to the anterolateral abdominal wall enters from a ______ direction
Nerve supply to the anterolateral abdominal wall: the __th to __th intercostal nerves become the ______ nerves
The nerves supplying the anterolateral abdominal wall travel between the ____ and ____ layers.
Internal oblique and transversus abdominis
Name 3 named nerves, and their vertebral levels, that supply the anterolateral abdominal wall
Name the 2 main arteries that supply the L and R anterior abdominal wall
Superior epigastric arteries
Inferior epigastric arteries
What artery is the superior epigastric artery a continuation of?
What artery is the inferior epigastric artery a branch of?
External iliac artery