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MSK > IUA > Flashcards

IUA Flashcards

1
Q

What is the role of Glut max?

A

Extensor of the thigh

Lateral rotation

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2
Q

What is Glut max supplied by?

A

Inferior gluteal nerve (L5, S1, S2)

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3
Q

What is the role of Glut Medius and minimus?

A

Abducts and medically rotates the lower limb
Prevents pelvic drop on opposite limb during movement
Superior Gluteal nerve

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4
Q

What is the role of tensor fascia Lata?

A

Abduction and medial rotation of lower limb

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5
Q

What is the origins and attachments for piriformis?

A

Anterior surface of sacrum to greater trochanter of the femur

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6
Q

What is the action of piriformis?

A

Lateral rotation and abduction

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7
Q

What are the origins and attachments of the obturator internus?

A

M at the obturator foramen attaches to the greater trochanter of the femur

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8
Q

What is the role of the obturator internus?

A

Lateral rotation and abduction

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9
Q

What are the muscles of the anterior thigh innervated by and what’s the action?

A

Femoral nerve, extend the leg at the knee

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10
Q

What are the role of the posts major and minor?

A

Flexes lower limb athip joint and assists in lateral rotation

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11
Q

Where does the vastus lateralis originate and attach?

A

Greater trochanter and lateral lip of linea aspersions, attaches to the patella via the patella tendon.

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12
Q

What is the role of the vastus lateralis?

A

Extension of the knee and patella stabilisation

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13
Q

What are the origins and attachments for vastus inter Medius muscles?

A

Anterior and lateral surfaces of femoral shaft and attaches to the patella via. The patella tendon

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14
Q

Origins do attachments of vastus medialis?

A

Intertrochanteric line and medial lip of linea asparagus and attaches to the patella via patella tendon.

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15
Q

Rectus femoris origins and attachments?

A

Originates from ilium, superior to acetabulum and attaches to the patella via the patella tendon.

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16
Q

What are the origins and attachments of Sartorius?

A

Anterior superior iliac spine to the superior medial surface of the tibia

17
Q

What are the origins and attachments of the pectineus?

A

Pectineal line on anterior surface of pelvis to the pectineal line on posterior femur

18
Q

Role of pectineus?

A

Adduction and flexion of the hip

19
Q

What are the attachments and origins of the 2 parts of ADductor Magnus?

A

ADductor Magnus can be split into the adductor part and the hamstring part.
ADductor part- originates from inferior rami of the pubis and the rami of ischium and attached o the linea appear of femur

Hamstring part- originates from the ischial tuberosity and attaches to the Medial supracondylar line of the femur.

20
Q

What is the role of ADductor longus and brevis?

A

They both ADductor the thigh and the hamstring portion also extends the thigh.

21
Q

What does the adductor longus do?

A

Adducts thigh

22
Q

What nerve supplies the medial compartment of the thigh?

A

Obturator Nerve

23
Q

The muscles in the posterior thigh are known as hamstrings, what do these muscles consist off?

A

The biceps femoris long and short head
Semitendinosus
Semimembranosus

24
Q

What is the innervation of the biceps femoris?

A

The long head is innervated by the tibial part of the sciatic nerve
Short head is innervated by the common fibular part of the sciatic nerve

25
Q

What are the actions of the semitendinosus and semimembranosus muscles?

A

Dlexion of the leg at the knee joint, extension of the high at the hip, medial rotation of the thigh at the hip joint and leg at knee joint

26
Q

When can the medial femoral circumflex artery be damaged?

A

In a proximal femur fracture, intracapsular fracture, occurs within a capsule of the hip joint.

27
Q

When a persons leg is shortened and laterally rotated, what is this a sign of?

A

EXTRAcapsular fracture

28
Q

Why do you get shortening on a limb in extra-capsular fractures?

A

The extensor, flexors and adductors pull the femur upwards. Lateral because ILLIOPSOAS takes over

29
Q

What can be damag d in a fracture of a femoral shaft?

A

Femoral nerve and femorAl shaft

MSK (7 decks)

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