Knee Anatomy Flashcards
1
Q
External ligaments of the knee
A
- Fibular collateral
- Tibial collateral
- Patellar
- Anterolateral
- Oblique popliteal
- Arcuate popliteal
2
Q
Internal ligaments of the knee
A
- Anterior cruciate
- Posterior cruciate
- Lateral meniscus
- Medial meniscus
- Transverse ligament
3
Q
Attachments and action of ACL
A
- Attachments:
> Anterior intercondylar area of tibia
> Medial aspect of lateral condyle of femur - Actions:
> Prevent anterior translation of tibia
> Prevent hyperextension + excessive internal rotation
4
Q
Attachments and action of PCL
A
- Attachments:
> Posterior intercondylar area of tibia
> Lateral surface of medial condyle of femur - Actions:
> Prevent posterior translation of tibia
> Prevent hyperflexion
5
Q
General structure of the menisci
A
- Thick external margins
- Become thinner medially
- Unattached edges in interior of joint
6
Q
What are menisci made of?
A
Fibrocartilage
7
Q
What do the menisci allow for?
A
- Joint congruency
- Load distribution
- Joint stability
8
Q
Shape and attachments of medial meniscus
A
- C-shaped –> broader posteriorly
- Attachments:
> A = anterior intercondylar area
> P = posterior intercondylar area
> Deep surface of tibial collateral ligament
9
Q
Shape and attachments of lateral meniscus
A
- Nearly circular + smaller than medial
- Attachments:
> A = anterior intercondylar area
> P = posterior intercondylar area
> Posterior horn = medial part of tendon of popliteus
10
Q
What ligament joins the anterior edges of the mensci?
A
Transverse ligament