03 Final Exam Study Guide Flashcards Preview

7202 Anatomy > 03 Final Exam Study Guide > Flashcards

Flashcards in 03 Final Exam Study Guide Deck (34):
1

Which plica is the most commonly injured?

medial plica

2

ALL

anterolateral ligament of the knee

3

Orientation of the ALL

- has a diagonal component
- not just straight up and down

4

Where does the ALL insert?

on the tibia

5

high riding patella

patella alta

6

low riding patella

patella baja

7

Which muscle unlocks the knee? How?

- popliteus
- internally rotates the tibia on the femur

8

What is the close packed position of the knee?

full extension (locked)

9

What is significant about the plantaris tendon?

- very long
- often used as a graft

10

Which patellar facet does the MPFL attach?

odd facet

11

How many facets on the patella?

5

12

Which meniscus is truly C-shaped?

medial

13

primary function of menisci

1˚ shock absorption
2˚ stability

14

What are the two ways to spare forces on the limbs?

- eccentric contractions
- flexing of long bones

15

Who commonly get stress fractures midfemur?

runners

16

Forces in the knee during walking

2-3x body weight

17

Which meniscus is most commonly injured?

medial

18

Why is the medial meniscus more commonly injured than the lateral one?

it's less mobile

19

Which structures attach to the medial meniscus?

- capsule
- semimembranosus
- quad/quad tendon
- MCL

20

Which part of the MCL is attached to the medial meniscus? Where?

deep fibers of the MCL attach to the middle 1/3 of outer rim of meniscus

21

Which structure is commonly torn along with the meniscus?

MCL

22

Which structures attach to the lateral meniscus?

- capsule
- semimembranosus
- quad/quad tendon
- popliteus
- DEAR GOD, NOT THE LCL

23

Where do the menisci terminate?

anterior and posterior horns

24

Blood supply to the meniscus

some blood supply comes through the horns

25

arthrokinematics of the knee:
OKC knee extension

tibia: ER
femur: IR

26

arthrokinematics of the knee:
OKC flexion

tibia: IR
femur: ER

27

arthrokinematics of the knee:
CKC extension

tibia: IR
femur: ER

28

arthrokinematics of the knee:
CKC flexion

tibia: ER
femur: IR

29

What does the patella function as during flexion and extension?

fulcrum

30

What are the 4 main ligaments in the knee?

MCL
LCL
ACL
PCL

31

functions of the MCL

1˚: restrain valgus forces to the knee
- resists hyperextension
- restricts extremes of all other motions

32

functions of the LCL

- restrains varus stress
- resists hyperextension and extremes of motion

33

functions of the ACL

- restrains anterior tibial translation
- restrains hyperextension and extremes of motion

34

functions of the PCL

- resists posterior tibial translation
- resists hyperflexion and extremes of motion