GA Lab 1 - Anterior Abdominal Wall, Including Inguinal Region Flashcards
What layer of the anterior abdominal wall helps to form the fundiform ligament of the penis?
Scarpa’s fascia
What is the iliac fossa?
Concave anterior surface of the pelvic bone
What 2 parts of the pelvic bone lie on the same coronal plane?
Pubic tubercle and ASIS
What is the sacral promontory?
Anterior edge of of vertebral body S1 that projects forward
What is the sacrum formed by?
Fused 5 sacral vertebrae
What does the sacrum articulate with superiorly and inferiorly?
Vertebra L5 and the coccyx
In which region of the abdomen is Scarpa’s fascia more prominent than Camper’s fascia?
Below the umbilicus
What is the scrotal ligament? Embryological derivation? Purpose?
Ligament that secures the testis to the most inferior portion of the scrotum
- Remnant of gubernaculum in a fetus
- Tethering it in place and limiting the degree to which the testis can move within the scrotum
What is the scrotal septum?
Vertical layer of fibrous tissue that divides the two compartments of the scrotum
What is the tunica albuginea?
Layer of connective tissue covering the testicles
Location of lymphatics to testes?
Inside the internal spermatic fascia
3 parts of epididymis? Describe each.
- Head: superior posterior pole made of the efferent ductules
TRUE EPIDIDYMIS: - Body: single long coiled duct where all efferent ductules drain along posterolateral margin of testis
- Tail: inferior pole of the testis with enlarged portion of epididymis
Function of epididymis?
Maturation and storage of sperm
Other name of ductus deferens? What does it originate from?
Vas deferens
Originates from tail of epididymis
Function of pampiniform plexus of veins of the spermatic cord?
To cool the blood of the testicular artery
Does the ilio-inguinal nerve L1 run in the spermatic cord?
NOPE
Embryological origin of round ligament of uterus?
Long distal part of the original gubernaculum in the fetus
Does the size of the greater omentum vary per person?
YUP
Function of genitofemoral nerve?
It innervates the cremaster muscle and the femoral division supplies cutaneous sensation to the upper thigh
Dermatome of groin region?
L1
In the supine position, what is the lowest point in the peritoneal cavity where fluids can accumulate? Why is this clinically significant?
In the hepatorenal recess (aka Morrisson’s pouch) = most likely intraperitoneal site for infection, blood, urine, etc, to collect
Are mesenteries continuations of the visceral and parietal peritoneum?
YUP
Are the greater and lesser omentum considered visceral or parietal periotoneum or neither?
Visceral peritoneum
How many inferior epigastric vessels are there?
3: 2 veins and 1 artery
