Abdomen Flashcards
Transversalis Fascia
Connective tissue layer that surrounds the inner surface of the abdomen. But it’s not the deepest layer.
External oblique OIAN
O: external surface of 5th-12th rib
I: linea Alba (a raphae), pubic tubercle, and anterior half of iliac crest.
A:Flexes and rotates trunk (contral Lateral). Compresses abdomen.
N: thoraco abdominal nerves via ventral rami of T7-T11 and subcostal nerves (T12)
Internal Oblique
O: Thoracolumbar Fascia, anterior 2/3 of iliac crest, lateral 1/3 inguinal ligament
I: Inferior borders of 10th-12th ribs, linea alba, pubic bone
A:Flexes and rotates trunk (Ipsilateral). Compresses abdomen.
N: thoraco abdominal nerves via ventral rami of T7-L1
Transversus abdominis
O: Internal surface of 7th to 12th costal cartilages, thoracolumbar fascia, iliac crest,
I: Linea alba with aponeurosis of internal oblique, pubic crest, and pubis.
A: Compress abdominal viscea.
N: thoraco abdominal nerves via ventral rami of T7-L1
Rectus Abdominis
O: Pubic Symphysis and pubic crest
I: Xiphoid proccess and 5th-7th costal cartilages
N: thoraco abdominal nerves via ventral rami of T7-T12
is there a posterior rectus sheath below the arcuate line?
NO. only the transversalis remains.
What is the Arcuate Line of posterior rectus sheath …
The end of the posterior rectus sheath.
Boundries of the Inguinal canal
Ant wall: Ex. Oblique Aponeurosis.
Post Wall: Transversalis fascia
Roof: IO and TA fibers
Floor: inguinal ligament
Deep Inguinal right and superficial inguinal ring pas through what, respectivly?
DIR Transversus abdominis
SIR inguinal liagament?
Inguinal triangle
Inf: Inguinal ligament
Lat. Inferior epigastric artery and vein
Med. Rectus abdominis
Indirect inguinal hernias (most common)
“Tourist route out”
Deep inguinal ring to inguinal canal to superficial inguinal ring to into scrotum
Direct hernia
passes directly through the anterior abdominal wall. usually passes through the inguinal triangle. Medial to inferior epigastric BV.
Psoas Major OIAN
O: Transveres process of L1-L5 lumbar vertebrae, lateral side of the bodies of T12-L5 and intervertebral discs.
I: Tendon to lesser trochanter of femur.
A: Flexes thigh, flexes vertebral column laterally
N: lumbar ventral rami 1-3 L1 and L2 primary.
Iliacus OIAN
O: iliac fossa, anterior sacro iliac ligament, Ala of sacrum.
I: lesser trochanter of the femur
A: Flexes thigh, stabalizes hip,
N: Femoral nerve (L2-L4)
Quadratus Lomborum OIAN
O: rib 12 and tip of transvers process of all lumbar vertebrae.
I: Iliolumbar ligament and internal lip of iliac crest
A: Elevates hip and can help with respiration.
N: Ventral rami of T12- L4
What are the borders of the Omental Bursa?
Ant: Portal triad
Post: IVC, R crus of the diaphragm
Sup: caudate lobe of liver
Inf: Duodenum and portal triad
What organs are retroperitoneal?
Duodenum
ascending/descending colon
pancreas
kidney
What three things are only found in the large intestine?
Teniae coli
Haustra
Omental appendages
what are the contents of the pectinate line of the Rectum? (CARD NOT FINISHED)
Arteries
- Superior rectal
Veins
Nerves
What are Hemorrhoids?
- Prolapse of rectal plexus
- can be internal or external
- pregnancy and constipation can cause this due to increased intraabdominal pressure.
Functions of the sleep
…Capsule is made of Dense irregular connective tissue
it’s intraperitoneal.
Kideny info
T12-L3 right kidney is lower than left kideny.
Kidney has it’s own fascia called “Renal Fascia”, which has an anterior an posterior band.
Perirenal fat/perinephros fat
KIdneys ascend from pelvis but sometime get stuck in the inf. mesc. a. resulting in a Horseshoe kidney at L3-L5.
Add more referred pain image page 257
…
Branches of facial nerve
Temporal: Facial expression
zygomatic: Facial expression
mandibular: Facial expression
cervical: Facial expression
Chorda Tympani: anterior? 2/3 of the tongue
What nerves contain parasympathetic branches?
3,7,9.10
What are the 4 tonsils?
Pharyngeal
Lingual
Palatine
Tubal
Where is the superficial epigastric vein?
anterior abdominal wall.
