The Thigh Part 2

Question 1

Adductor Canal
What is it?
Where does it begin and end?
What travels through it?
Boundaries? 4

Answer 1

Fascial tunnel deep to sartorius.
Begins near apex of femoral trangle, ends at add hiatus.
Femoral art.=popliteal art.
Popliteal vein= femoral v.
Saphenous n. (superficial n. goes to foot)
N. to the VML?

Question 2

Posterior compartment
What is the main muscle group?
Function?
Proximal attachment?
Nerve? 
Arterial supply?

Answer 2

Hamstrings.
F: Extend thigh, Flex Knee
A: Ischial tuberosity
N: Tibial n. (division of sciatic)
Art: Inferior Gluteal and Profunda Femoral art.

Question 3

What three muscles make up the posterior compartment and what are they called collectively?

Answer 3

Biceps femoris, Semitendinosus, Semimembranosus.

Hamstrings.

Question 4

Semimembranosus
Attachments?
Nerve?

Semitendinosus
Attachments:
Nerve?

Answer 4

A: Ischial Tuberosity–Tibia–Linea aspera–Fibular head.
N: Sciatic n.

A: Ischial Tuberosity–Pes anserine
N: Sciatic n.

Question 5

Biceps Femoris, Long head.
Attachemts?
Nerve?

Short head
Attachments?
Nerve?

Answer 5

LH
A: Ischial tuberosity–Fibular head
N: Sciatic n. (Tibial division)

SH
A: Lateral lip of linea aspera–fibular head
N: Sciatic n. (Tibial division)

Question 6

What is unique about the semitendinosus tendon?

What does it cross and how does this affect an activity?

Answer 6

More tendinous at the knee. Palpable.

Crosses hip. It is an extensor of the hip. Leisure walks.

Question 7

Sciatic Nerve
What is its size in comparison to the rest of the body?
Where does it enter the lower limb?
What muscles does it not innervate?
What are its two branches?

Answer 7

Largest n.
Exits pelvis via greater sciatic foramen, inferior to piriformis.
Does not innervate gluteal muscles.
Divides into tibial and common fibular (peroneal) nerves.(Usually at the knee)

Question 8

Where is the compression point normally for the sciatica?

Answer 8

Under the ischial tuberosity.

Question 9

What is the Popliteal Fossa?

Boundaries? 4 super and inf

Answer 9

Diamond shaped dead space posterior to the knee?
Boundaries: Superior: Biceps femoris (sup/lat)
Semimembranosus and semitendinosus (Sup/medial)
Inferior: Gastrocnemius.

Question 10

Popliteal contents? 6.5

Answer 10

Fat
Popliteal art.
Popliteal v. (Short saphenous v.)
Tibial n.
Common fibular n.
Popliteus muscle (Forms floor).

Question 11

Popliteal artery.
Where does it begin?
What are its branches called?
What does it become continuous with?

Answer 11

Begins at adductor hiatus (Leaving add. muscle)
Genicular branches (genicular–of the knee)–allow circulation after constriction.
Sural art.–supply to gastrocnemius and soleus.