Knee Anatomy Flashcards
1
Q
Knee
A
the largest most complex joint in body
2
Q
Bones
A
- Femur
- Tibia (bears on weight)
- Fibula (bears no weight)
- Patella
3
Q
Type of Joint
A
Hinge Joint
4
Q
Ligaments
A
connects bone to bone (injuries to ligament are sprains)
5
Q
Cruciate
A
Means to cross
6
Q
Collateral ligaments
A
are located on the sides
7
Q
Plane, Axis, and Movement
A
Plane – sagittal
Axis – Bilateral
Movements – Flexion and Extension
8
Q
4 Major Ligaments of the Knee
A
Anterior cruciate ligament (ACL)
Medial collateral ligament (MCL)
Posterior cruciate ligament (PCL)
Lateral collateral ligament (LCL)
9
Q
Movements
A
Primary Movements
- Flexion – bending
- Extension – straightening
Other lesser movements
- Rotation (knee must be flexed)
- Gliding (to a small degree during flexion and extension) (tibial translation)
10
Q
Genu valgus
A
“knock kneed” (L-shaped)
11
Q
Genu varus
A
“bow legged” (Round or curved to outside)
12
Q
Genu recurvatum
A
knee curved backwards
13
Q
Muscles:
1.Quadriceps (4)
A
- vastus medialis obliques
- vastus lateralis
- vastus intermedius
- rectus femoris (biarticular – two joints)
14
Q
Muscles:
1.Hamstrings (3)
A
semimembranosus
semitendinosus
biceps femoris
15
Q
Muscles:
Gastrocnemius
A
Calf
