U2 day 6

Question 1

boundaries of abdomen

Answer 1

part of trunk, area between thorax and pelvis.

Question 2

abdominal wall bountries

Answer 2

sup: sup ribs/xiphoid/T10
lat: iliac crest
Ant: pubic symphysis
Post: L5

Question 3

Abdominal pelvic cavity boundries

Answer 3

sup: resp. diaphragm
inf. Pelvic floor (area between the two pubic symphysis’)

Question 4

abdominal wall and muscle funx and innervation

Answer 4

somatic NS innervation (general)
fnxs: protection, trunk movement, UL movement, regulates abdominal pressure
inn: T7-L1
blood supply: post. lumbar arteries (x4)
Ant. int. thoracic aa to superior epigastric aa to inf epigastric aa

Question 5

abdominal wall muscles

Answer 5

Rectus abdominus m.
External abdominal oblique m.
Internal abdominal oblique m.
Transversus abdominus m.
Psoas major m.
Iliacus m.
Quadratus lumborum m.

Question 6

facia in abdomen

Answer 6

Rectus sheath, covering rectus abdominus and external and internal abdominal oblique connect to this and form linea alba in middle.
deepest facia is transversals fascia, deep to transversus abdominus.

Question 7

Inguinal canal

Answer 7

passageway out of the abdomen, male spermanicord (quite large), female round ligament (very small), carry lymph, nerves, and vessels. goes though transversals facia, transversus abdominal m, internal and external abd. oblique m, and rectus sheath.

Question 8

Serous membrane of abdomen

Answer 8

Peritoneum, parietal layer is attached to wall, visceral layer is attached to organs. GI organs are ‘intraperitoneal’ surrounded by peritoneal facia. Urogenital organs are behind the peritoneum, ‘retroperitoneal.’ There is still serous fluid between layers of peritoneum.

Question 9

Specialized peritoneum

Answer 9

Mesentery: X2 layers of peritoneum, between are vessels, and nerves to GI tract.
fnx: suspends guts
Omentum: grater and lesser, x4 layers of peritoneum, site for fat accumulation, temperature regulation.