Session 7 - Anterior thigh muscles Flashcards Preview

Semester 2 - MSK > Session 7 - Anterior thigh muscles > Flashcards

Flashcards in Session 7 - Anterior thigh muscles Deck (28)
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1
Q

What are the four main muscles found in the anterior compartment of the thigh?

A

iliopsoas, sartorius, and quadriceps femoris

2
Q

What do the muscles of the anterior compartment of the thigh mostly do

A

Mainly flexors at the hip and extensors at the knee

3
Q

What are the muscles of the anterior compartment of the thigh innervated by?

A

The femoral nerve

4
Q

What is the illopsoas made up of?

A

Two muscles, the psoas major and the illiacus - originate in different areas, but come together to form a tendon

5
Q

What is A?

A

Psoas Major

6
Q

What is B?

A

Iliacus

7
Q

What are the actions of the Iliopsoas

A

A powerful flexor of the lower limb at the hip joint, and can also assist in lateral rotation

8
Q

What is the innervation of the psoas major?

A

The anterior rami of L1-3

9
Q

What is the innervation of the iliacus?

A

The femoral nerve

10
Q

What are the quadriceps made up of?

A

Vastus medialis, vastus intermedius, vastus lateralis and the rectus femoris

11
Q

What do the quadriceps attach to?

A

The patella, via the quadriceps femoris tendon

12
Q

What is the actions of the quadriceps femoris?

A

Main extensor of the knee and hip flexion

13
Q

What are the functions of the three vastus muscles?

A

They extend at the knee joint

14
Q

What are the vastus muscles innverated by?

A

Femoral nerve

15
Q

What is the action of the rectus femoris?

A

Flexes thee leg at the hip joint, and extends at the knee joint

16
Q

What is the innervation of the rectus femoris?

A

Femoral nerve

17
Q

What is A?

A

Rectus femoris

18
Q

What is B?

A

Vastus lateralis

19
Q

What is C?

A

Vastus medialis

20
Q

How do you test damage to the quadriceps femoris or the nerve supplying it?

A

Ask the patient to lie in the supine position with the knee slightly flexed. Ask the patient to extend the leg and resist the movement - the quadriceps femoris should contract and be observable

21
Q

What is B?

A

The sartorius muscle

22
Q

What is the action of the sartorius muscle?

A

At the hip joint, it is a flexor, abductor and lateral rotator. At the knee joint, it is also a flexor

23
Q

What is the innervation of the sartorius muscle?

A

Femoral nerve

24
Q

What is A?

A

Pectineus

25
Q

What is the pectineus innervated by?

A

Femoral nerve

26
Q

What are the actions of the pectineus typical of, and why is this weird?

A

Muscles in the medial compartment, but it is actually in the anterior

27
Q

What are the actions of the pectineus?

A

Adduction and flexion

28
Q

What is the innervation of the pectineus?

A

Femoral nerve