Justin's Anatomy + 2018 Flashcards
(74 cards)
Injury to which nerves causes “wrist drop”?
What is spinal root
C5-T1
Radial nerve palsy
Which of the following is not a branch of the femoral artery?
a. deep circumflex iliac
b. superficial epigastric
c. superficial iliac circumflex
d. superficial/deep external pudendal
e. deep femoral
a. deep circumflex–comes from the external iliac artery
femoral artery ends as the popliteal artery
external iliac branches before going under inguinal ligament are: inferior epigastric and deep circumflex iliac artery
Branches arising from the common femoral artery include
- superficial epigastric artery,
- superficial circumflex artery, and
- external pudendal artery.
Distal to these smaller branches, the common femoral artery bifurcates into the
- deep femoral (or profunda femoris) and
- superficial femoral artery.
Where does the superior mesenteric vein drain into?
Portal vein
The portal vein is made of the splenic vein and the superior mesenteric vein
Also in Angela’s
Where does the inferior mesenteric vein drain into?
The splenic vein
Also in Angela’s
Where does the superficial epigastric artery arise from?
The femoral artery
Where does the internal pudendal artery arise from?
The anterior division of the internal iliac artery
Where does the external pudendal artery arise from?
The femoral artery
Where does the deep/inferior epigastric artery arise from?
The external iliac artery
Injury to which nerves is associated with “foot drop”?
The common peroneal nerve (L4-S2)
Arises from the sciatic nerve
What are the draining lymph nodes for structures below the pectinate (or dentate) line?
Below the pectinate line: inguinal lymph nodes; blood supply from the middle and inferior rectal arteries
Above the pectinate line: inferior mesenteric (and internal iliac) lymph nodes; blood supply from the terminal branches of the superior rectal artery
Anal canal divided into superior and inferior segments by the pectinate line; it is formed from the inferior aspect of longitudinal folds known as the anal columns or valves. Line separates upper 2/3s from lower 1/3
Where does the R gastro-epiploic artery arise from?
The gastroduodenal artery
Which arises from the common hepatic artery which is one of the three branches from the celiac trunk (L gastric, splenic, common hepatic)
Which artery is transected with en-bloc rectosigmoid resection?
a. middle rectal
b. inferior rectal
c. superior rectal
d. marginal artery of Drummond
c. superior rectal artery
What are the two main arterial branches from the external iliac artery? The external artery terminates as what artery?
Inferior epigastric artery and deep circumflex iliac artery
Terminates as the femoral artery
The inferior mesenteric artery is transected, what should be done next?
Ligate the artery and continue with surgery; enough collateral vessels that it can be ligated without significant consequence
This is in his set twice
What is the course of the femoral nerve?
From posterior to the psoas muscle, it emerges at the lower part of the lateral border between the psoas and iliacus muscle and goes beneath the inguinal ligament to enter the femoral triangle
What is the origin of the middle rectal artery?
The anterior division of the internal iliac artery
Also in Angela’s
What nerves are found in the femoral triangle?
From lateral to medial:
Lateral femoral cutaneous nerve (L2-3)-supplies the skin on the lateral part of the thigh
Femoral nerve (L2-4)- supplies quadriceps, sartorius, iliacus and pectineus muscle and skin on anterior thigh; divisions=saphenous nerve, nerves to the anterior compartment of the thigh and anterior cutaneous branches
Femoral branch of the genitofemoral nerve (L1-2)-supplies the majority of the skin over the femoral triangle, and labia majora
What is the most common symptom after axillary lymph node dissection?
a. lymphedema
b. numbness of arm
b. numbness of arm
Up to 42% will have subjective/objective arm impairment after 1 year (UTD)
What is the most common cause of an ilioinguinal nerve injury?
a. retractor placement
b. transverse incision
c. hyperflexion
b. transverse incision
What is the main blood supply of the jejunum?
Superior mesenteric artery
Which of the following does NOT share collateral blood supply with the inferior mesenteric artery?
a. superior mesenteric artery
b. internal iliac artery
c. external iliac artery
c. external iliac artery
superior mesenteric artery and inferior mesenteric artery communicate via the marginal artery of Drummond; splenic flexure is at risk of ischemia
internal iliac artery and inferior mesenteric artery communicate between the superior and middle/inferior rectal arteries
external iliac artery does not share any blood supply with the inferior mesenteric artery
What are the borders of the femoral triangle?
Inguinal ligament (superior), sartorius muscle (lateral), adductor longus (medial)
Floor (from lateral to medial): iliopsoas, pectineus muscle
Roof: fascia lata and cribiform fascia, subcutaneous tissue, skin
Contents: NAVL; femoral nerve*, artery**, vein (greater saphenous vein is at inferior portion), lymphatics
*all nerves lateral to medial: lateral femoral cutaneous nerve, femoral nerve, femoral branch of the genitofemoral nerve
**all vessels: superficial circumflex iliac, superficial inferior epigastric, superficial and deep external pudendal artery
There is a nerve injury at the lateral edge of an inguinal lymph node dissection, what nerve is injured and what is the consequence?
a. unable to adduct thigh
b. unable to extend knee
c. unable to abduct thigh
d. unable to dorsiflex or plantarflex foot
The femoral nerve is injured
Consequence: can’t extend knee (b)
adduct thigh: obturator n.
abduct thigh: superior gluteal n.
dorsiflex/plantarflex foot: common peroneal/tibial
What is the consequence of an obturator nerve injury?
Loss of adduction, can’t cross/close legs (motor only)
Can’t ride a horse !
