Posterior Thigh and Popliteal Fossa

Question 1

What are muscles in the posterior compartment collectively known as?

Answer 1

Hamstring Muscles

Question 2

How many muscles are in the posterior compartment?

Answer 2

three

Question 3

Name the muscles of the posterior compartment

Answer 3

Semitendinosus; semimembranosus; biceps femoris

Question 4

What is the function of the posterior compartment muscles?

Answer 4

Act to extend the hip and flex the knee

Question 5

Attachment sites for Semitendinosus

Answer 5

origin: ischial tuberosity
inserts: into medial surface of the superior tibia

Question 6

Attachment sites for Semimembranosus

Answer 6

origin: ischial tuberosity
inserts: into posterior surface of media condyle of tibia

Question 7

Which nerve supplies muscles of semimembranous and semitendinosus?

Answer 7

Tibial division of Sciatic Nerve (L5, S1, S2)

Question 8

Which nerve supplies the long head of the biceps femoris?

Answer 8

Tibial division of Sciatic Nerve (L5, S1, S2)

Question 9

Which nerve supplies the short head of the biceps femoris?

Answer 9

Common Peroneal Division of Sciatic (L5, S1, S2)

Question 10

Where is the common insertion point of the Biceps Femoris heads?

Answer 10

Head of Fibula

Question 11

Where does the Long head of the Biceps Femoris originate?

Answer 11

Ischial Tuberosity

Question 12

Where does the short head of the Biceps Femoris originate?

Answer 12

Linea Aspera and Lateral Supracondyler line of Femur

Question 13

When can small amounts of rotation occur in the knee?

Answer 13

When the knee is flexed

Question 14

Which muscle allows lateral rotation of knee when flexed?

Answer 14

Biceps Femoris

Question 15

Which muscles allow medial rotation of the knee when flexed?

Answer 15

Semimembranosus; Semitendinosus; Gracilis and Sartorius

Question 16

Where does the Sciatic nerve run?

Answer 16

Deep to Biceps Femoris

Question 17

What are the terminal divisions of the Sciatic Nerve?

Answer 17

Tibial and Common Peroneal (Fibular) divisions

Question 18

What creates the roof of the Popliteal Fossa?

Answer 18

Deep fascia

Question 19

What pierces the roof of the Popliteal Fossa?

Answer 19

Sural nerve and Short Saphenous vein

Question 20

What are the superior boundaries of the Popliteal Fossa?

Answer 20

Diverging tendons of the Hamstrings: Biceps Femoris laterally and Semimembranosus and Semitendinosus medially.

Question 21

What are the inferior boundaries of the Popliteal Fossa?

Answer 21

Medial and Lateral heads of Gastrocnemius

Question 22

What are the contents of the Popliteal Fossa? (Medial & deep to superficial & lateral)

Answer 22

Popliteal artery, popliteal vein, terminal branches of Sciatic (Tibial nerve and common peroneal nerve)

Question 23

What is the roof of the popliteal fossa made up of?

Answer 23

popliteus muscle, knee joint capsule and the posterior surface of the femur

Question 24

Which vessels supply the cruciate ligaments?

Answer 24

Middle genicular vessels (pierce through joint capsule)

Question 25

Function of Oblique Popliteal ligament?

Answer 25

Reinforces knee joint capsule, is an expansion of semimembranosus

Question 26

What is the Popliteal Artery a continuation from?

Answer 26

the Femoral Artery

Question 27

Where does the Popliteal Artery run from?

Answer 27

From the adductor hiatus to the Inferior border of Popliteus muscle

Question 28

What are the 5 genicular branches of the Popliteal artery?

Answer 28

the superior lateral, superior medial, middle, inferior lateral, and inferior medial genicular arteries

Question 29

Name the terminal branches of the Popliteal artery

Answer 29

Anterior Tibial and Posterior Tibial Arteries