Dissection 20

Question 1

What is the strongest ligament in the body?

Answer 1

the iliofemoral

Question 2

The knee joint is _______ and can cause which movements?

Answer 2

biaxial; flexion/ extension and rotation

Question 3

What is genu varus?

Answer 3

proximal tibia is laterally directed; “bow legged

Question 4

What is the genus valgrum ?

Answer 4

proximal tibia is medially directed; “knock kneed”

Question 5

What are the anterior thigh muscles?

Answer 5

ilopsoas, quadratus femoris, sartorius, and pectinius

Question 6

What movement does the ilopsoas cause?

Answer 6

It is a strong flexor of the hip

Question 7

What movement does the sartorius muscle cause?

Answer 7

flexes, laterally rotates and abducts the hip joint

flexes and medially rotates the knee joint

Question 8

Which head of the quadriceps femoris crosses the hip joint?

Answer 8

the rectus femoris (FLEXES the hip)

Question 9

What movement does the pectinus cause?

Answer 9

flexes and adducts the hip joint

Question 10

What is the pectinus nerve innervated by?

Answer 10

The obturator OR femoral nerve

Question 11

What are the medial thigh muscles?

Answer 11

The adductor longus and brevis, adductor magnus and gracilis

Question 12

What are the main actions of the medial thigh muscles?

Answer 12

adduction, flexion, and medial rotation

Question 13

What are the medial thigh muscles innervated by?

Answer 13

The obturator nerve

Question 14

The posterior part of the adductor magus causes what movement and is innervated by what?

Answer 14

extension and tibial nerve

Question 15

What are the muscles of the posterior thigh?

Answer 15

semitendonous, semimembranosus, and biceps femoris

Question 16

What innervates the posterior thigh muscles?

Answer 16

Tibial nerve

Question 17

What innervates the short head of the biceps femoris tendon?

Answer 17

the common peroneal

Question 18

What are the actions of the semitendonous and the semimembranous muscles?

Answer 18

hip: extension, knee: flexion and medial rotation

Question 19

What are the actions of the biceps femoris?

Answer 19

hip: extension; knee: flexion and medial rotation

Question 20

What are the borders of the femoral triangle?

Answer 20

inguinal ligament, sartorius, and adductor longus

Question 21

what travels through the femoral triangle?

Answer 21

iliopsoas and pectineus

Question 22

What nerve roots make up the femoral nerve?

Answer 22

L2,3 and 4

Question 23

What nerve roots make up the obturator nerve?

Answer 23

L2,3, and 4

Question 24

What nerve roots make up the the superior gluteal?

Answer 24

L4-S1

Question 25

What nerve roots make up the inferior gluteal?

Answer 25

L5-S2

Question 26

What nerves make up the sciatic nerve?

Answer 26

common fibular and tibial

Question 27

What are the anterior division nerves of the lumbosacral plexus?

Answer 27

obturator and tibial

Question 28

What are the posterior division nerves of the lumbosacral plexus?

Answer 28

femoral, superior and inferior gluteal and common fibular

Question 29

The lateral cutaneous nerve is made up of what roots?

Answer 29

L2 and L3

Question 30

What travels though the popiteal fossa?

Answer 30

the popliteal nerve, artery and the tibial nerve (and common fibular nerve)

Question 31

What makes up the borders of the popliteal fossa?

Answer 31

Gastrocnemius, biceps femoris and semitendonosus and semimembranosus

Question 32

What arteries make up the cruciate anastomosis?

Answer 32

medial and lateral femoral circumflex arteries, the first perforating branch of the deep femoral and the inferior gluteal