Anatomy 3 - lower leg vasculature Flashcards
What is a dermatome?
a unilateral area of skin innervated by sensory fibres of a single spinal nerve
What is a myotome?
unilateral muscle mass receiving innervation from fibres conveyed by a single spinal nerve
What is a viscerotome?
organ or organ group supplied by specific spinal nerve levels
Where does the abdominal aorta bifurcate and what to?
L4 into left and right common iliac arteries
When does the external iliac artery become the femoral artery?
inguinal ligament
What does the internal iliac artery supply?
pelvic viscera
Where does the profunda arise from?
posterolateral aspect of the femoral artery
What are the three brainches of the profunda?
- perforating branches: perforates adductor magnus to supply h/s muscles
- lateral femoral circumflex: wraps around ant and alt side of femur (greater trochanter)
- medial femoral circumflex: wraps around posterior femur to supply neck and head of femur as well as adductor muscles
Where does the superficial femoral artery travel?
from femoral triangle through the subsartorial canal to the adduct hiatus
What does the superficial femoral artery supply?
anterior thigh muscles
When does the superficial femoral artery become the popliteal artery?
adductor hiatus
What does the popliteal artery branch into?
superior (med and lat) and inferior (med and lat) genicular arteries which supplies the knee joint
Anterior tibial artery
supplies the anterior compartment of the leg and travels through the IOM
Where does the anterior tibial artery turn into the dorsalis pedis?
anastomoses of the ankle
What does the posterior tibial artery supply?
posterior muscles and structures of the lower leg
