Abdomen Flashcards
The transtubercular like is at the level of what lumbar vertebra?
L5
The subcostal plane is at the level of what rib
10th rib
The subcostal plane corresponds to what lumbar vertebra
L3
The interspinous plane is an imaginary line from what surface landmarks?
ASIS
What are the fascias of the anterior abdominal wall
- Superficial fascia
2. Deep fascia
What are the layers of the superficial fascia of the anterior abdominal wall
- Campers fascia
- Scarpas fascia
Remember: Fatty Camper traversing a SCAry PArk (scarpa_
The campers fascia is connected to what fasci of the thigh?
Superficial fascia
The campers facia is connected to what fascia in the perineum?
Superficial fascia of the perineal fascia
What fascia covers the muscles of the abdomen
deep fascia
The deep fascia continues as what in the spermatic cord
external spermatic fascia
The deep fascia continues as what in the penis
As deep fascia or bucks fascia
What is the most superficial muscle of the abdomen?
External oblique
The inferior margin of the external oblique muscle forms what ligament?
inguinal ligament
What muscles interdigitate in the external oblique muscle of the abdomen?
Serratus anterior and latissimus dorsi
The external oblique muscle fibers is directed
Obliquely downward and medially
An anterior abdominal wall muscle that is part of the conjoint tendon
- internal oblique
2. transversus abdominis
What is the direction of the muscle fibers of the internal oblique muscle
upward and medial
What forms the conjoint tendon of the abdomen
- Aponeurotic fibers of internal iblique
2. Transversus abdominis
The aponeurosis of the rectus sheath comes from what muscles
internal oblique
what is the innermost muscle of the anterior abdominal wall?
Transversus abdominis
the convex lateral border of the rectus abdominis is called
line semilunaris
What is the action of the pyramidalis?
tenses the linea alba
___ is a crescent shaped line marking the inferior limit of the posterior layer of the rectus sheath
arcuate line
The linea SEMICIRCULARIS is also called the ____
arcuate line
The arcuate line is see between what surface markers?
midway between the
- Umbilicus
- Pubic crest
If you stab a patient lateral to the rectus abdominis (above the arcuate line), what layers of the skin are affected?
[Anterior to posterior]
- Skin
- Subcutaneous tissue
- EO fascia
- IO fascia
- TA fascia
- Transversalis fascia
- Extraperitoneal fascia
- peritoneum
If you stab a patient directly over the rectus abdominis (above the arcuate line) muscle, what layers are traversed by the ice pic?
- Skin
- Subcutaneous tissue
- Anterior rectus sheath
- Rectus abdominis
- Posterior rectus sheath
- Extraperitoneal fascia
- Peritoneum
The anterior rectus sheath is composed of what fascia
- EO
2. IO
The posterior rectus sheath is composed of what fascia
- TA
2. Transversalis fascia
If you stab a patient below the arcuate line just lateral to the rectus abdominis muscle, what layers are traversed by the knife?
- Skin
- Subcutaneous fascia
- EO
- IO
- TA
- TF
- Extraperitoneal fascia
- Peritoneum
NO POSTERIO SHEATH
If you stab a patient below the arcuate line directly over the rectus abdominis muscle, what layers are traversed by the knife?
- Skin
- Subcutaneous tissue
- Anterior layer of rectus sheath
- Rectus abdomins muscle
- Transversalis fascia
- Extraperitoneal fascia
- Peritoneum
What are the layers of the anterior rectus sheath found below the arcuate line
- EO
- IO
- TA
the linea alba extends from the xyphoid process to the ___
pubic symphysis
The linea alba is the fusion of what aponeurosis
- External oblique
- Internal oblique
- Transversus abdominis
What are the blood supply of the muscles of the anterior abdominal wall?
- Superior epigastric
- Inferior epigastric
- Deep Circumflex
- Superficial epigastric
- Superficial cicumflex Iliac
The superior epigastric artery is a branch of the
Internal Thoracic artery
the inferior epigastric artery is a branch of
External iliac artery
the SUPERFICIAL circumflex iliac artery is a brach of
the femoral artery
The deep circumflex iliac is a branch of
external iliac artery
What are the nerve supply of the anterior abdominal wall?
ventral rami of the lower six thoracic nerves and first lumbar nerve
[Lymphatic Drainage]
if above the umbilicus
drain into axillary LN
[Lymphatic Drainage]
if below the umbilicus
drain into the superficial inguinal nodes
The inguinal region extends between the ___ and ___-
ASIS and Pubic tubercle
What are the boundaries of Inguinal Triangle
- Inferior epigastric artery
- Inguinal ligament
- Rectus abdominis
The poupart ligament is also called the
inguinal ligament
What is the length of the inguinal canal?
4cm
What lies immediately above the inguinal ligament
Inguinal canal
The deep ring of the inguinal canal is a hole from what ring?
Transversalis fascia
The superficial inguinal ring of the inguinal canal is composed of what fascia?
external oblique aponeurosis
What nerve passes through the inguinal canal
ilioinguinal nerve
What ligaments pass through the inguinal canal?
Spermatic cord for males
Round ligament for females
What are the content of the spermatic cord?
3 arteries - testicular, cremasteric, artery of vas
2 Nerves - autonomic, genital branch of the genitofemoral nerve
2 others - vas deferens, processus vaginalis
1 vein - testicular vein
1 lymphatic vessel - testicular lymph vessel
The cremasteric reflex utilizes what nerve
L1 spinal nerve
Skin on the superior and medial thigh is supplied by the ____
gemoral branch of the genitofemiral nerve
what nerve supplies the cremaster muscle
genital branch of the genitofemoral nerve
What are the layers of the peritoneum
- Parietal
2. Visceral
What nerve supplies the parietal peritoneum in the pelvis
obturator nerve
[Parietal/visceral]
sensitive to pressure, pain, heat, cold
pain is localized
parietal
[Parietal/visceral]
insensitive to touch, heat, cold
pain is poorly localized
visceral
[Parietal/visceral]
innervated by autonomics
visceral
What are your retroperitoneal organs?
- Pancreas
- Ureter
- Kidney
- IVC
- Duodenum
- Ascending colon
- Descending colon
- Abdominal aorta
What are your primary retroperitoneal organs?
Primary = not GIT Kidney ureter urinary bladder uterus fallopian tube aorta IVC suprarenal glands
What are your secondary retroperitoneal organs?
Secondary = GIT
- Duodenum (second to fourth)
- Pancreas
- Ascending/Descending colon
- Middle rectum
Part of the rectum that is peritoneal
superior rectum
which part of the duodenum is retroperitoneal
2nd and rd part
____ is a cavity within the abdominal cavity that has no organs
peritoneal caivty
The peritoneal cavity is connected to the exterior of the body namely:
- Uterine tubes
- Uterine cavity
- Vaina
The lesser sac lies to ___ (organs)
- posterior to the stomach and lesser omentum
What are the boundaries of the foramen of winslow?
A: hepatoduodenal ligament, portal vein, hepatic artery, bile duct
P: IVC
S: caudate lobe of liver
I: inferior part of the duodenum
How many layers of mesentery are there
2
___ are extensions of the visceral peritoneum
mesentery
What connects the stomach to other viscera?
omentum
How many layers does an omentum have?
4 ayers
referred to as abdominal policement
greater omentum
What are the parts of the greater omentum
- Gastrophrenic
- Gastrosplenic
- Gastrocolic
[Peritoneal recess]
has 4 pouches
duodenal recess
[Peritoneal recess]
has 3 peritoneal recesses
cecal
[Peritoneal recess]
provide channels for the movement of infection in the peritoneal fluid
paracolic gutter
[Peritoneal recess]
provide site for accumulation of pus, seen between the diaphragm and the liver
subphrenic spaces
The greater omentum connects the greater curvature of the stomach and the ___
proximal part of the duodenum
The lesser omentum connects the lesser curvature of the stomach and the
duodenum and proximal part of the liver
The lesser omentum has 2 ligaments namely
- Hepatoduodenal
2. Hepatogastric
What ligament conducts the portal traid
Hepatoduodenal ligament
What are the 2 recommended areas for paracentesis
- 2 cm below the umbilicus, midline
2. 3-4cm superior and medial to the anterior superior iliac spines
What are the layers pierced by the needle during umbilical paracentesis
- Skin
- Superficial fascia
- Deep faschia
- Linea alba
- transversalis fascia
- Extraperitoneal fat
- parietal peritoneum
What are the layers pierced by the needle during lateral approach paracentesis
- Skin
- Superficial fascia
- External oblique
- Internal oblique
- Transversus abdominis
- Transversalis fascia
- Extraperitoneal fat
- Parietal peritoneum
[Lymph Drainage]
the foregut derivatives drain to what lymph node
celiac
[Lymph Drainage]
the midgut derivatives drain to what lymph node
superior mesenteric LN
[Lymph Drainage]
the hindgut derivatives drain to what lymph nodes
inferior mesenteric LN
[Lymph Drainage]
what are the pre-arotic lymph nodes
- Celiac
- Superior mesenteric
- Inferior mesenteric