Lumbar Plexus - Part 1 Flashcards
The iliohypogastric never contains fibers from which nerves?
T12 and L1
The iliohypogastric travels in which direction starting out?
Anterior and inferior
The iliohypogastric travels between which two things?
Quadratus lumborum and the kidney
The iliohypogastric nerve travels THROUGH which muscle?
Transverse abdominal muscle
After penetrating the transverse abdominal muscle, the iliohypogastric muscle travels between what?
Transverse abdominal muscle and the
Internal abdominal oblique muscle
The iliohypogastric gives off what branch?
Lateral cutaneous branch
The lateral cutaneous branch off of the iliohypogastric muscle supplies sensory to what?
The posterior gluteal region
After giving off the lateral cutaneous branch, the iliohypogastric nerve continues as what?
Anterior cutaneous branch
The anterior cutaneous branch of the iliohypogastric muscle supplies sensory to what?
Skin of the pubic region
Which two muscles does the iliohypogastric supply?
Internal abdominal oblique
Transverse abdominal
The ilioinguinal nerve contains fibers from which nerves?
T12 and L1
The ilioinguinal nerve follows a path similar to which nerve?
iliohypogastric
The ilioinguinal nerve enters and is transmitted through what?
inguinal canal
The ilioinguinal nerve leaves the inguinal canal though what?
The superficial inguinal ring
Once the ilioinguinal nerve leaves the inguinal canal though the superficial inguinal ring, it travels with which structure?
spermatic cord - males
Round ligament - females
The ilioinguinal nerve supplies sensory information to where?
Skin of the upper medial thigh
In males the ilioinguinal nerve supplies sensory information to which area?
Base of pens and anterior scrotum
In females, the ilioinguinal nerve supplies sensory information to which area?
mons pubis and labium majorum
Along it’s course, the ilioinguinal muscles supplies which two muscles?
Internal abdominal oblique
Transverse abdominal
Which two nerves supply the internal abdominal oblique and the transverse abdominal muscles?
Iliohypogastric and ilioinguinal nerve
The genitofemoral nerve contains fibers from?
L1 and L2
The genitofemoral nerve passes _______ through which muscle?
anteriorward
Psoas major
The genitofemoral muscle divides into which two branches?
genital and femoral branch
The genital branch enters and travels through where?
Inguinal canal
After leaving the inguinal canal, the genital branch supplies which muscle?
cremaster muscle
After leaving the inguinal canal, the genital branch supplies sensory information to which area in males?
Skin of the superior anterior scrotum
After leaving the inguinal canal, the genital branch of the genitofemoral nerve supplies sensory information to which area in females?
Skin of mons pubis and labium majorum
What is involuntary contraction of the cremaster muscle when the inner thigh of a male is stroked called?
Cremaster reflex
Which side does the cremaster reflex of happen?
ispilateral side
The cremaster reflex causes what reaction when the cremaster muscle is contracted?
The scrotum and testes to go upward on same side
The femoral branch passes into the thigh ______?
Posterior to the inguinal ligament
The femoral branch supplies sensory to which area?
Skin of upper anterior thigh
The lateral cutaneous nerve of the thigh is purely what?
sensory
The lateral cutaneous nerve of the thigh contains fibers from what?
L2 and L3
The lateral cutaneous nerve of the thigh supplies what area?
Skin of the lateral thigh, superior to the knee
The lateral cutaneous nerve of the thigh leaves the abdominal cavity by passing where?
Under the inguinal ligament
The lateral cutaneous nerve of the thigh travels anterior to which muscle?
sartorius
The lateral cutaneous nerve of the thigh travels through what to reach the skin?
fascia lata
