Exam 3 - Pelvic Limb Circulation Flashcards
What is the major arterial supply to the pelvic limb?
the external iliac artery
Where does the external iliac artery enter the limb?
at the femoral ring/triangle parallel to the iliopsoas
When does the external iliac artery become the femoral artery?
after it gives off the deep femoral artery
What are the borders of the femoral triangle?
Base - dorsal edge of the thigh or abdominal muscles
Caudal - pectineous
Cranial - sartorius
Medially - fascia and the skin
Laterally - iliopsoas, vastus medialis, or adductors
Where does the deep femoral artery course?
caudally towards the pelvic symphysis and gives off branches to the levator ani, iliopsoas. and obturator muscles
What are the main branches of the deep femoral artery?
pudendoepigastric trunk, medial circumflex femoral artery
Where does the pudendoepigastric trunk course?
towards the deep inguinal ring and divides into two branches
What are the branches of the pudendoepigastric trunk?
caudal (deep) epigastric and external pudendal artery
Where can the caudal (deep) epigastric be found?
on the dorsal surface of the rectus abdominis muscle deep to the parietal peritoneum
Where does the caudal (deep) epigastric course at the caudal border of the rectus abdominis?
ventral to the rectus abdominis and anastomoses with the cranial deep epigastric
Where does the external pudendal artery run?
passes through the inguinal canal, exits the superficial inguinal ring and gives off ventral scrotal/labial branch and continues cranial as the caudal superficial epicastric artery
What does the medial circumflex femoral artery supply?
the medial group muscles of the thigh (sartorius, gracilis, pectineus, adductor)
Where does the femoral artery run?
distally on the medial side of the thigh in the femoral triangle, deep to the semimembranosus, then to the caudal surface of the femur
Where is a common spot to take the pulse in small animals?
at the femoral triangle, of the femoral artery
At mid thigh, what does the femoral artery branch off to?
the saphenous artery
Where is the saphenous artery located?
superficial to the gracilis on the medial aspect of the thigh
Does the saphenous artery have any branches?
yes, cranial and caudal
What does the saphenous supply?
the superficial structures on the medial thigh, crus, pes, and medial digit
What does the saphenous contribute to?
the dorsal and plantar superficial arteries
When does the femoral artery become the popliteal artery?
when it courses in between the two heads of the gastrocnemius
Where is the popliteal space?
the area caudal to the stifle joint
What does the popliteal artery divide into?
caudal tibial and cranial tibial arteries
What is the main supply to the pes?
the cranial tibial artery
What is the process of the cranial tibial artery becoming the dorsal pedal artery?
it continues distally and passes cranioventrally between the tibia and fibula and travels distally under the long digital extensor, under the proximal transverse ligament, across the dorsal aspect of the tarsus
