Joints/nerves/compartments Of Lower Extremity

Front 1

Bones of pelvis:

Back 1

-ilium
-ischium
-pubis
-sacrum

Front 2

Joints of pelvis (2) / type

Back 2

Sacroiliac - synovial

Pubic symphysis - fibrous, not synovial.

Front 3

Which Sacroiliac joint is more easily torn?

Back 3

Anterior - will result in high riding pelvis

Front 4

Posterior SI joint protects:

Back 4

Lumbosacral plexus

Front 5

If you're going to fracture the Femoral Neck, where is it best to do so?

Back 5

Lateral to the intertrochanter line - there's a larger blood supply so it heals better here.

Front 6

3 surfaces articulate in the knee joint:

Back 6

-Patello-femoral
-Medial femoral-tibial
-Lateral Femoral-Tibial

Front 7

Which meniscus in the knee is more commonly injured?

Back 7

Medial

Front 8

What does NOT participate in the knee joint?

Back 8

Fibula

Front 9

Why can't the meniscus be repaired if it's torn in the inner 1/3rd?

Back 9

There is no blood supply there.

Front 10

Which ligament of the knee is most commonly torn? In who?

Back 10

ACL - 3 times more common in women

Front 11

Which ankle ligaments are more clinically significant?

Back 11

LAteral

Front 12

Which ligament is most commonly sprained in the ankle?

Back 12

ANTERIOR talofibular ligament; results in inversion of the ankle.

Front 13

Tibial nerve
-supplies what
-Becomes what

Back 13

-Supplies Posterior compartment
-Becomes Medial/Lateral plantar nerves of the foot.

Front 14

Common Fibular nerve - injury will cause what?

Back 14

Foot drop

Front 15

What inherited disease causes foot drop like symptoms?

Back 15

Charcot-Marie Tooth disease - loss of common peroneal function results in loss atrophy in anterior and lateral compartments.

Front 16

Common fibular nerve becomes what 2 branches to supply:

Back 16

-Superficial - lateral compartm
-Deep - anterior compartment

Front 17

What supplies DORSUM of FOOT?

Back 17

Superficial fibular nerve; after supplying the peroneal muscles, wraps by the lateral ankle.

Front 18

What supplies the QUARTER SIZED SPOT BETWEEN THE FIRST AND SECOND TOE?

Back 18

Deep fibular nerve

Front 19

Saphenous nerve

Back 19

-Branch of femoral
-Cutaneous to medial lower leg

Front 20

Sural nerve

Back 20

Cutaneous branhces of Tibial (medial sural) and Common fibular (lateral Sural).

Front 21

What does the sural nerve give innervation to?

Back 21

The lateral, posterior, lower leg, and foot - except plantar and dorsum.

Front 22

What gets innervation from the bottom of foot?

Back 22

Tibial - medial/lateral plantars

Front 23

Anterior compartment:
-nerve
-artery
-action

Back 23

Nerve: deep fibular
Artery: Anterior tibial
Action: dorsiflexion

Front 24

Anterior compartment muscles:

Back 24

-Anterior tibialis
-Extensor digitorum longus
-Extensor hallucis longus

Front 25

Lateral compartment:
-nerve
-artery
-action

Back 25

Nerve: Superficial fibular
Artery: Fibular artery - located in posterior compartment though!
Action: Eversion/Dorsi

Front 26

Posterior compartment muscles:

Back 26

Peroneus longus and brevis

Front 27

Superficial posterior comprtmnt:
-nerve
-artery
-action

Back 27

Nerve: Tibial
Artery: Posterior tibial
Action: Antigravity, slight leg flexion due to gastroc

Front 28

Muscles in Superficial posterior compartment:

Back 28

Gastroc/Soleus -> plantarflex
Plantaris -> no action

Front 29

Deep posterior compartment:
-nerve
-artery
-action

Back 29

Nerve: Tibial
Arter: Posterior tibial
Action: Plantarflex/Inversion

Front 30

Deep posterior compartment muscles:

Back 30

-Posterior tibialis
-Flexor hallucis longus
-Flexor digitorum longus
-Popliteus

Front 31

For the following muscles name the nerve

Back 31

ok

Front 32

Extensor digitorum brevis

Back 32

Deep fibular nerve (same as for extensor digit longus)

Front 33

Abductor hallicus and Flexor digitorum brevis:

Back 33

Medial Plantar nerve

Front 34

Abductor digiti minimi

Back 34

Lateral plantar nerve

Front 35

Quadratus plantae
(function of this?)

Back 35

Lateral plantar nerve
-adjust the pull of flexor digitorum longus tendon toward heel)

Front 36

Lumbricals - on what?

Back 36

Ride on FDL tendons 2-5; 2 innervations don't need to know.

Front 37

Flexor hallucis brevis
(inserts where)

Back 37

Medial plantar nerve
-on 2 sesamoid bones

Front 38

Adductor hallucis
(inserts where)

Back 38

Lateral plantar nerve
-Both oblique/transverse heads insert on sesamoid bones.

Front 39

Flexor digiti minimi brevis

Back 39

Lateral plantar nerve

Front 40

Interossei

Back 40

Lateral plantar nerve

Front 41

Dorsal interossei action

Back 41

Abduct (DAB)

Front 42

Plantar interossei

Back 42

Adduct (PAD)