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Anatomy: Lower Limb > Muscles of Medial Thigh > Flashcards

Muscles of Medial Thigh Flashcards

1
Q

What are the muscles in the medial compartment of the thigh collectively called?

A

Hip adductors

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2
Q

Name the 5 muscles in the medial compartment of the thigh.

A

Gracilis, obturator externus, adductor brevis, adductor longus, adductor magnus

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3
Q

What is the innervation of medial thigh muscles?

A

Obturator nerve (L2-L4)

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4
Q

What is the blood supply of the medial thigh muscles?

A

Obturator artery

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5
Q

Where is the adductor magnus found?

A

Posterior to the other adductor muscles

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6
Q

The adductor magnus is split into 2 parts. Name these 2 parts.

A

Adductor part and hamstring part

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7
Q

What is the origin and insertion of the adductor part of the adductor magnus?

A

Originates from the inferior rami of the pubis and ischium, attaches linea aspera

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8
Q

What is the origin and insertion of the hamstring part of the adductor magnus?

A

Originates from ischial tuberosity, attaches to adductor tubercle of femur

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9
Q

What is the action of the adductor magnus?

A

Adductor part does adduction at hip, hamstring part does extension at hip

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10
Q

What is the innervation of the adductor magnus?

A

Adductor part innervated by obturator nerve, hamstring part innervated by tibial branch of sciatic nerve

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11
Q

Describe the relative positions of the adductor longus, adductor brevis, and adductor magnus.

A

Adductor longus partially covers the adductor brevis and magnus

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12
Q

What is the origin and insertion of the adductor longus?

A

Originates from body of pubis, attaches to linea aspera

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13
Q

What is the action of the adductor longus?

A

Adduction of thigh

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14
Q

What is the innervation of the adductor longus?

A

Obturator nerve

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15
Q

How is the adductor brevis sometimes used as an anatomical landmark?

A

Lies between anterior and posterior divisions of the obturator nerve, so can be used to find these nerve branches

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16
Q

What is the origin and insertion of the adductor brevis?

A

Originates from body of pubis and inferior rami of pubis, attaches to linea aspera

17
Q

What is the action of adductor brevis?

A

Adduction of thigh

18
Q

What is the innervation of the adductor brevis?

A

Obturator nerve

19
Q

What is the origin and attachment of the obturator externus?

A

Originates from membrane of obturator foramen, passes under neck of femur and attaches to posterior part of greater trochanter (horizontal route)

20
Q

What is the action of the obturator externus?

A

Adduction and lateral rotation of thigh

21
Q

Describe the relative position of the gracilis

A

Most superficial and medial muscle of medial compartment

22
Q

What is the gracilis sometimes surgically used for?

A

Sometimes transplanted to hand, forearm, or face beca

23
Q

What is the origin and insertion of the gracilis?

A

Originates from body and inferior rami of pubis, attaches to superior medial surface of tibia

24
Q

What is the action of the gracilis?

A

Adduction of thigh, flexion at knee

25
Q

What is the innervation of the gracilis?

A

Obturator nerve (L2-L4)

26
Q

What are the spinal root values of the obturator nerve?

A

L2-L4

27
Q

RICE is a common method of treatment for muscle strain injuries. What does RICE stand for?

A

Rest, Ice, Compression, Elevation

28
Q

What are the spinal root values of the femoral nerve?

A

L2-L4

29
Q

Where are the relative positions of the inferior rami of the pubis and ischium?

A

Both part of the same loop bit, but pubic rami more medial (closer to pubis, which is the central bit of the pelvis), ischium rami more lateral

30
Q

What is the origin and insertion of the Sartorius?

A

Originates from anterior superior iliac spine, attaches to superior medial surface of tibia

31
Q

Which muscles insert into the superior medial surface of the tibia?

A

Sartorius and gracilis

32
Q

Which muscles insert into the linea aspera?

A

Adductor longus, adductor brevis, adductor part of adductor magnus (hamstring part inserts into adductor tubercle of femur)

33
Q

Which muscles originate from the body of the pubis?

A

Gracilis, adductor longus, adductor brevis (gracilis and adductor brevis also originates from inferior pubic rami)

34
Q

Which muscles originate from the body and inferior rami of the pubis?

A

Gracilis and adductor brevis

Anatomy: Lower Limb (23 decks)

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