Lecture 27: Lower Limb Compartments

Question 1

Muscles that move the thigh cross what?

Answer 1

The hip joint

Question 2

Muscles the move the leg cross what?

Answer 2

The knee joint

Question 3

Muscles that move the foot cross what?

Answer 3

The ankle joint

Question 4

The anterior group that connects the pelvic girdle to the thigh include what muscle? Where does it originate from and where does it insert onto?

Answer 4

Ilioposas: Originates from the hip bone and inserts onto the femur

Question 5

Discuss the iliacus and silis major

Answer 5

Iliacus oriinates from the ilium
Silis major originates from vertebrae of lower spine
Come together to insert onto the trochanter
Powerful flexor at thigh and hip joint – essential for running and walking

Question 6

What is the muscle in the posterior portion connecting the pelvic girdle to the thigh?

Answer 6

The gluteal maximus

Question 7

Where does the gluteal maximus originate from and insert onto. What is it’s functon?

Answer 7

Originates from the iliac crest and sacrum and coccyx
Inserts on the lateral side of the posterior surface of the femur, on the glutimal tuberosity
When it contracts it extends the thigh and results in lateral movement of the femur and hip joint

Question 8

The thigh is separated into what three compartments?

Answer 8

Anterior, posterior and medial

Question 9

The anterior compartment of the thigh contains a muscle that does what?

Answer 9

Flexes the thigh at the hip and extends the leg at the knee

Question 10

The posterior compartment of the thigh contains a muscle that does what?

Answer 10

Extend the thigh at the hip and flex the leg at the knee

Question 11

The medial compartment of the thigh contains a muscle that does what?

Answer 11

Adduct the thigh

Question 12

The quadriceps femorus are found where?

Answer 12

The thigh

Question 13

Where do the quadriceps originate and insert onto? What is it’s function

Answer 13

Originates from the hip bone (backside) and inserts onto the pataella. Extends the leg at the knee

Question 14

What compartment are the hamstrings located in?

Answer 14

The posterior compartment of the thigh

Question 15

Where do the hamstrings originate from, insert onto, and what is their function?

Answer 15

Originates from the ischil tuberosity and inserts onto the medial and posterior surface of proximal tibia and the lateral side of the head of the fibula
Crosses the hip joint on proximal end and crosses the knee joint on distal end
- Extends the thigh at the hip
- Extends the leg at the knee joint

Question 16

Where do the muscles in the medial compartment originate from? Where do they insert onto? What is their function?

Answer 16

• Originates form the anterior surface of the pubic bone
• Inserts onto the posterior surface of the femur
• Thigh adduction

Question 17

The anterior compartment of the muscles in the leg control what?

Answer 17

The dorsiflexors

Question 18

The lateral compartment of the muscles in the leg control what?

Answer 18

The evertors of the foot

Question 19

The posterior compartment of the muscles in the leg control what?

Answer 19

Plantar flexors

Question 20

What are the compartments of the leg?

Answer 20

Anterior, lateral, and posterior

Question 21

The tibialis anterior is located in what compartment?

Answer 21

The anterior of the leg

Question 22

The peroneus longus is located in what compartment?

Answer 22

The lateral of the leg

Question 23

The gastrocnemius and calcaneal tendon are located in what compartment of the leg?

Answer 23

The posterior of the leg

Question 24

Stimulation of the legs is from what vertebrae?

Answer 24

L1 - S5

Question 25

The lumbar plexus is from what vertebrae?

Answer 25

L1 to L5

Question 26

The sacral plexus are from what nerves?

Answer 26

L5 to S5

Question 27

The lumbar plexus divides into what nerves?

Answer 27

The obturator nerve and the femoral nerve

Question 28

The obturator nerve goes where?

Answer 28

To the medial thigh adductors

Question 29

The femoral nerve goes where?

Answer 29

To anterior thigh compartment

Question 30

The sacral plexus divides into what nerves?

Answer 30

The sciatic nerve and the gluteal nerves

Question 31

Where does the sciatic nerve go?

Answer 31

To the posterior thigh compartment

Question 32

The sciatic nerve terminal branches divide into what?

Answer 32

The common peroneal nerve and tibial nerve

Question 33

Where do the internal iliac artery go

Answer 33

Gluteal regions

Question 34

The external iliac artery divides into what?

Answer 34

The femoral artery

Question 35

What does the femoral artery service?

Answer 35

The thigh

Question 36

What does the femoral artery divide into?

Answer 36

The popliteal artery

Question 37

What does the popliteal artery service?

Answer 37

The knee

Question 38

What does the popliteal artery divide into?

Answer 38

The anterior and posterior tibial arteries

Question 39

What anterior and posterior tibial arteries supply what?

Answer 39

The anterior and posterior leg, respectively

Question 40

What does the peroneal artery stem from?

Answer 40

The posterior tibial artery

Question 41

What does the peroneal artery service?

Answer 41

The lateral leg