Extra titbits

Question 1

Where is the femoral nerve from

Answer 1

Formed with psoas major from L2-L4

Question 2

What is the sensory distribution of the femoral nerve

Answer 2

Anterior cutaneous nerve of the thigh

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

Question 3

Peroneus Longus and peroneus brevis O and I

Answer 3

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

Question 4

insertions of the leg extensor muscles

Answer 4

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

Question 5

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

Answer 5

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

Question 6

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

Answer 6

goes under EHL (between EDL and EHL

Question 7

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

Answer 7

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

Question 8

What causes foot drop?

Answer 8

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

Question 9

What is the locking mechanism of the knee for?

Answer 9

to reduced energy required to maintain a straight leg

Question 10

What does patella tendon insert onto

Answer 10

tibial tuberosity

Question 11

Tell me about the joint capsule of the knee

Answer 11

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.

Question 12

What is the vascular supply to the knee?

Answer 12

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

Question 13

Where does the small saphenous vein drain into the popliteal vein

Answer 13

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

Question 14

Where is the pes anserinus found

Answer 14

medial surface of the proximal tibia

Question 15

myotomes of internal rotation

Answer 15

S1/S2

Question 16

myotomes of external rotation

Answer 16

L4/S1

Question 17

O/I of biceps femoris

Answer 17

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

Question 18

Origin and actions of Semitendonosis and semimembranosis

Answer 18

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

Question 19

superior and inferior boundaries of the gluteal region

Answer 19

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

Question 20

Greater sciatic foramen for?

Answer 20

structures entering/leaving gluteal region

Question 21

Lesser sciatic foramen for?

Answer 21

Structurres entering/leaving the perineum

Question 22

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

Answer 22

Sacral plexus

Question 23

Primary role of gluteus maximus

Answer 23

hip extensor

Question 24

When do hamstring injuries usually occur, what happens

Answer 24

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

Question 25

Acetabular labrum

Answer 25

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

Question 26

O/I of plantaris?

Answer 26

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

Question 27

Where does tibialis posterior insert?

Answer 27

I= Navicular