Knee Joint, Anterolateral Leg, & Dorsum of Foot

Question 1

Superior Tibiofibular Joint

Answer 1

Not considered part of knee joint
Plane type synovial
Permits slight movement during ankle dorsiflexion

Question 2

Knee Joint

Answer 2

Modified hinge type synovial
Permits flexion and minimal rotation

Question 3

Articular Capsule of Knee Joint
(Anterior View)

Answer 3

Patella
Patellar Tendon
Patellar Ligament
Patellar Retinaculum

Question 4

Medial Knee Ligaments

Answer 4

Medial patellofemoral
Medial patellomeniscal
Medial patellotibial

Question 5

Articular Capsule of Knee Joint
(Posterior View)

Answer 5

Opening for tendon of popliteus
Oblique popliteal ligament

Question 6

Synovial Membrane of Knee

Answer 6

Lines fibrous capsule
Attaches to meniscal edge and patella edge
Reflects between tibia and patella onto cruciate ligaments

Question 7

Extracapsular Ligaments

Answer 7

Tibial Collateral
Fibular Collateral
Oblique Popliteal
Arcuate Popliteal

Question 8

Tibial Collateral Ligament

Answer 8

Attaches to medial meniscus
Limits valgus movement of the tibia on femur

Question 9

Posterior Oblique Ligament

Answer 9

Limits posteromedial rotation of the tibia of femur

Question 10

Oblique Popliteal Ligament

Answer 10

Expansion of tendon of semimembranosus

Question 11

Arcuate Popliteal Ligament

Answer 11

Crosses tendon of popliteus muscle

Question 12

Fibular Collateral Ligament

Answer 12

Separated from lateral meniscus by tendon of popliteus
Splits the tendon of the biceps femoris posteriorly
Limits varus movement of tibia and femur

Question 13

Popliteofibular Ligament

Answer 13

Important for posterolateral stability of knee

Question 14

Intracapsular Ligaments of Knee

Answer 14

Anterior Cruciate Ligament
Posterior Cruciate Ligament

Question 15

Anterior Cruciate Ligament

Answer 15

2-3 fiber bundles
Slack when knee flexed and taut when knee extended
Limits posterior displacement of femur on tibia and hyperextension

Question 16

Posterior Cruciate Ligament

Answer 16

Thicker and stronger than ACL
Slack when knee extended and taut when knee flexed
Limits anterior displacement of femur on tibia and hyperflexion

Question 17

Menisci

Answer 17

Crescent shaped fibrocartilage
Medial and Lateral attach to tibia and limit sliding mvmt

Question 18

Unhappy Triad of Knee

Answer 18

Tear of tibial collateral ligament (MCL)
Tear of medial meniscus
Tear of ACL

Question 19

Genicular Arteries

Answer 19

Femoral
Popliteal
Anterior tibial recurrent
Circumflex fibular

Question 20

Bursae around Knee

Answer 20

Subcutaneous: Prepatellar & Infrapatellar

Continuous with Synovial Cavity: Suprapatellar, Popliteus, Anserine, & Gastrocnemius

Question 21

Tibiofibular Syndesmosis

Answer 21

Unites the shafts of tibia and fibular
Site of muscle attachment in leg

Question 22

Bones of Leg

Answer 22

Tibia - majority of weight bearing
Fibula - majority of muscle attachments

Question 23

Bones of Foot

Answer 23

Calcaneus
Talus
Cuboid
Navicular
Cuneiforms
Metatarsus
Phalanges

Question 24

Anterior Compartment Syndrome

Answer 24

Compress artery and nerve
Some muscles will begin to die

Question 25

Muscles of Anterior Compartment of Leg

Answer 25

Tibialis Anterior Extensor Digitorum Longus Extensor Hallicus Longus Fibularis Tertius

Question 26

Tibialis Anterior

Answer 26

Attachments: Lateral condyle &superior half of lateral surface of tibia, interosseous membrane; medial cuneiform and first tarsal Innervation: Deep fibular (L4) Actions: Dorsiflexion of ankle & inversion of foot

Question 27

Extensor Digitorum Longus

Answer 27

Attachments: Lateral condyle of tibia, superior 3/4 of medial fibula, interosseous membrane; middle and distal phalanges of lateral 4 toes Innervation: Deep fibular (L4) Actions: Dorsiflex ankle & extension of lateral 4 toes

Question 28

Extensor Hallucis Longus

Answer 28

Attachments: Middle part of anterior fibular, interosseous membrane; dorsal aspect of base of distal phalanx great toe Innervation: Deep fibular (L4) Actions: extend great toe and dorsiflex ankle

Question 29

Fibularis Tertius

Answer 29

Attachments: Inferior 1/3 of fibula, interosseous membrane; dorsum of base of 5th metatarsal Innervation: Deep fibular (L4) Actions: dorsiflex ankle & evert foot

Question 30

Nerve and Artery of Anterior Compartment

Answer 30

Deep fibular nerve Anterior tibial artery

Question 31

Extensor Retinaculum of Anterior Compartment

Answer 31

Superior & Inferior

Question 32

Muscles of Dorsum of Foot

Answer 32

Extensor Digitorum Brevis Extensor Hallucis Brevis

Question 33

Tendons of Dorsum of Foot

Answer 33

Tibialis anterior Extensor hallucis longus Extensor digitorum longus Fibularis tertius

Question 34

Extensor Digitorum Brevis

Answer 34

Attachments: Calcaneus, talocalcaneal ligament, inferior extensor retinaculum; long extensor tendons of four lateral toes Innervation: deep fibular Actions: aid in extension of toes

Question 35

Extensor Hallucis Brevis

Answer 35

Attachments:Calcaneus, talocalcaneal ligament, inferior extensor retinaculum; dorsal aspect of base of proximal phalanx of great toe Innervation: deep fibular Actions: aids in extension of great toe

Question 36

Muscles in Lateral Compartment

Answer 36

Fibularis Longus Fibularis Brevis Superior Fibular Retinaculum

Question 37

Fibularis Longus

Answer 37

Attachments: Head and superior 1/3 of fibula; base of 1st metatarsal and medial cuneiform Innervation: Superficial fibular (L5,S1) Actions: Evert foot and weakly plant flex ankle

Question 38

Fibularis Brevis

Answer 38

Attachments: Inferior 2/3 of lateral fibula; dorsal surface of tuberosity of 5th metatarsal Innervation: Superficial fibular (L5,S1) Actions: Evert foot and weakly plant flex ankle

Question 39

Nerves of the Lateral Compartment

Answer 39

Superficial Fibular Nerve