Extra titbits Flashcards Preview

Musculoskeletal > Extra titbits > Flashcards

Flashcards in Extra titbits Deck (27):
1

Where is the femoral nerve from

Formed with psoas major from L2-L4

2

What is the sensory distribution of the femoral nerve

Anterior cutaneous nerve of the thigh
Saphenous cutaneous nerve of the leg and foots (inf/med aspect)

3

Peroneus Longus and peroneus brevis O and I

PL
O= sup 2/3 of lateral fibula
I= base of 1st MT and medial cuneiform

PB
O= inferior 2/3 of lateral fibula
I= base of 5th MT

4

insertions of the leg extensor muscles

TA = base of 1st MT and Medial cuneiform
EDL = middle and distal phalanx of lateral 4 toes
EHL= base of distal phalanx of great toe

5

Two places to find a pulse in the foot, and what they are from

second metatarsal (dorsalis pedis/ anterior tibial artery)
posterior to medial malleolus (posterior tibial)

6

What does the anterior tibial artery travel behind to get to the foot?

goes under EHL (between EDL and EHL

7

What supplies the sural nerve, where does it run and what does it supply

from Tibial and common peroneal. Runs down the back of the leg superfically, cutaneously supplying the inf/medial leg and dorsum of the foot.

8

What causes foot drop?

Damage to the deep peroneal or common peroneal nerves. This causes weakness of the dorsiflexors, and a high steppage gait.

9

What is the locking mechanism of the knee for?

to reduced energy required to maintain a straight leg

10

What does patella tendon insert onto

tibial tuberosity

11

Tell me about the joint capsule of the knee

Is a fibrous membrane that surrounds the articular cavity. MCL and medial meniscus are fused with this membrane, their lateral counterparts are not. Thickened anteriorly by the patella / quads tendons.

12

What is the vascular supply to the knee?

Femoral, lateral femoral circumflex, and popliteal arteries, anastomosing with branches off the anterior tibial and circumflex peroneal arteries

13

Where does the small saphenous vein drain into the popliteal vein

At the inferior border of the popliteal fossa (between gastroc heads)

14

Where is the pes anserinus found

medial surface of the proximal tibia

15

myotomes of internal rotation

S1/S2

16

myotomes of external rotation

L4/S1

17

O/I of biceps femoris

O= LH at ischial tuberosity
SH at linea aspera
I = head of fibula

18

Origin and actions of Semitendonosis and semimembranosis

O= ischial tuberosity
Action= flexes and int rotates leg, extends thigh

19

superior and inferior boundaries of the gluteal region

Sup= iliac crests
inf= gluteal fold (glut max muscles)

20

Greater sciatic foramen for?

structures entering/leaving gluteal region

21

Lesser sciatic foramen for?

Structurres entering/leaving the perineum

22

the short external rotators of the gluteal region are innervated from the

Sacral plexus

23

Primary role of gluteus maximus

hip extensor

24

When do hamstring injuries usually occur, what happens

When you do kicking or running. Muscle can tear of an avulsion fracture of the ischial tuberosity can occur.

25

Acetabular labrum

increases coverage of femoral head. Increases articular sutface by 10-20%

26

O/I of plantaris?

O= superior to the lateral head of gastroc
I= medial side of achilles tendon

27

Where does tibialis posterior insert?

I= Navicular