Download MBBS (Bachelor of Medicine and Bachelor of Surgery) Latest Popliteal Fossa and Arteries of Thigh Lecture PPT
POPLITEAL FOSSA
The Popliteal Fossa is a diamond-shaped
intermuscular area found on the posterior aspect of
the knee joint
? BOUNDARIES
? CONTENTS
? APPLIED ANATOMY
Upper Medial
Boundary
Comprises two
muscles
?Semimembranosus
?Semitendinosus
Boundaries of the
Popliteal Fossa
Upper Lateral Boundary
Tendon of Biceps
Femoris
Boundaries of the
Popliteal Fossa
Lower Lateral Boundary
Lateral Head of
Gastrocnemius
Boundaries of the Popliteal Fossa
Lower Medial Boundary
Medial Head of Gastrocnemius
ARTERIES OF THIGH
FEMORAL ARTERY
FEMORAL ARTERY
? It is the main artery of the lower limb.
? It enters the femoral triangle behind the inguinal ligament
at the midinguinal point.
? It runs downward and medially successively via the femoral
triangle and adductor canal.
? At the lower end of the adductor canal , it leaves the thigh
via the adductor hiatus to go into the popliteal fossa where it
continues as the popliteal artery.
SURFACE MARKING
? Femoral artery is
represented by the
upper two-thirds of a
line joining the
midinguinal point to the
adductor tubercle.
The thigh is slightly
flexed, abducted and
laterally rotated
RELATIONS OF THE FEMORAL ARTERY IN THE
FEMORAL TRIANGLE
1. The main anterior relations are the skin, superficial fascia,
deep fascia and the anterior wall of the femoralsheath.
2. Posteriorly, the artery rests, from above downwards
on
? Psoas major,
? Pectineus ,
? The profunda artery comes behind the femoral artery as it
lies on the pectineus.
? The nerve to Pectineus passes (from the femoral nerve)
mediallybehind the artery.
? Adductor longus.
? The posterior wall of the femoral sheath Intervenes
between these structures and the artery.
RELATIONS OF THE FEMORAL ARTERY IN THE
FEMORAL TRIANGLE
3. The femoral artery & the femoral vein.
? The femoral artery is accompanied by the femoral vein Just
below the inguinal ligament. The vein is medial to the artery.
? However, the femoral vein gradually crosses to the lateral
side posterior to the artery.
? Femoral vein is directly behind the artery at the apex of the
femoral triangle, and lateral to the lower end of the artery.
RELATIONS OF THE FEMORAL ARTERY IN THE
FEMORAL TRIANGLE
4. The femoral nerve is lateral to upper part of the artery.
? Lower down the artery is related to the branches of the
nerve, some of which cross it.
? The branch to the pectineus crosses behind the upper part
of the artery.
? The medial cutaneous nerve of the thigh crosses the artery
from lateral to medial side near the apex of the femoral
triangle.
? The saphenous branch crosses the artery within the
adductor canal.
? The nerve to the vastus medialis is lateral to the artery in
the adductor canal.
RELATIONS OF THE FEMORAL ARTERY IN
THE FEMORAL TRIANGLE
5. The femoral branch of the genitofemoral nerve is also
lateral to the upper part of the femoral artery, within the
femoral sheath, but lower down it passes to the front of the
artery.
6. The profunda femoris artery a branch of the femoral
artery itself, and its companion vein, lie behind the upper part
of the femoral artery, where it lies on the pectineus.
? Lower down, however, the femoral and profunda
arteries are separated by the adductor longus
POPLITEAL ARTERY
This post was last modified on 30 November 2021