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Antomy Muscles Of Lower Limb > Thigh (Anterior) > Flashcards

Thigh (Anterior) Flashcards

1
Q

The four headed muscle of the anterior compartment of thigh?

A

Quadriceps femoris

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2
Q

Difference between quadratus femoris and quadriceps femoris?

A

Quadratus femoris - in the hip
Quadriceps femoris - in the thigh

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3
Q

Name muscles of anterior compartment of thigh?

A

1.Sartorius
2.Iliacus
3.Psoas
4.Pectineus
5.Quadriceps femoris
•Rectus femoris
•Vastus lateralis
•Vastus medialis
•Vastus intermedius

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4
Q

How many compartments of thigh? Name

A

Anterior - extensor
Medial - adductor
Posterior - flexor

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5
Q

Anterior compartment of thigh is innervated by?

A

Femoral nerve

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6
Q

What are the iliopsoas muscles?

A

Iliacus and psoas are collectively known as iliopsoas muscles

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7
Q

Origin and insertion of iliacus muscle?

A

origin
Iliac fossa of hip bone

Insertion
With psoas on lesser trochanter of femur

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8
Q

Psoas major origin and insertion?

A

origin
12th thoracic vertebrae (T12)
5 lumber vertebrae (L1 - L5)

Insertion
With iliacus on lesser trochanter of femur

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9
Q

The most superficial muscle on anterior compartment of thigh is?

A

Sartorius

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10
Q

Origin and insertion of rectus femoris?

A

origin
Straight head - anterior inferior iliac spine
Reflected head - ileum above the acetabulum

Insertion
Quadriceps tendon into patella

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11
Q

Rectus femoris along with vastus muscles inserts into?

A

Patella via quadriceps tendon

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12
Q

Patella is attached to tibia by?

A

Patellar ligament

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13
Q

Why only rectus femoris can flex the thigh at hip joint and other vastus muscles of quadriceps femoris can’t flex it?

A

Because rectus femoris originates on the pelvis (hip bone). It also extends the leg at knee joint.

But vastus muscles originate on the femur

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14
Q

Orgin and insertion of vastus muscles?

A

Upper end and shaft of femur

Vastus medialis
Vastus lateralis

Shaft of femur

Vastus intermedius

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15
Q

Common Action of all vastus muscles?

A

Extend the leg at knee joint

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16
Q

Origin and insertion of sartorius muscle?

A

origin
Anterior superior iliac spine

Insertion
Upper medial surface of shaft of the tibia

17
Q

Which is the Longest muscle of the body?

A

Sartorius

18
Q

Innervation of psoas muscle?

A

Lumbar plexus

19
Q

All muscles of anterior compartment of thigh are innervated by femoral nerve except?

A

Psoas - lumbar plexus

20
Q

Origin and insertion of pectineus?

A

origin
Superior ramus of the pubis

Insertion
Pectineal line on Upper end of shaft of femur

21
Q

The muscles of anterior compartment of thigh that originate and insert into femur?

A

originate

Vastus lateralis (upper end and shaft of femur)
Vastus medialis(upper end and shaft of femur)
Vastus intermedius (shaft of femur)

Insert

Pectineus - (upper end and shaft of femur)
Psoas - (lesser trochanter of femur)
Iliacus - (lesser trochanter of femur)

22
Q

Action of pectineus?

A

Flexes and adducts the thigh at hipjoint

23
Q

Which muscles of the anterior compartment are flexors and which are extensors?

A

flex
Sartorius
Iliacus
Psoas
Pectineus
(Rectus femoris)

Extend
Quadriceps femoris
(Rectus femoris)
Vastus lateralis
Vastus Medialis
Vastus Intermedius

24
Q

Action of sartorius?

A

Flexes abducts and laterally rotates the thigh at hip joint

Flexes and medially rotates the leg at the knee

25
Q

Sartorius _________ rotates the thigh and _________ rotates the leg?

A

Laterally rotates —- thigh
Medially rotates —– leg

26
Q

Difference in action of pectineus and sartorius?

A

Sartorius - abducts
Pectineus - adducts

27
Q

Which artery supplies the anterior compartment of the thigh?

A

Femoral artery

28
Q

Iliopsoas muscle pass under _____ ligament to enter anterior compartment of thigh?

A

Inguinal ligament

29
Q

The only muscle of quadriceps group that crosses both the hip and knee joint?

A

Rectus femoris

30
Q

Difference in origin of sartorius and rectus femoris?

A

sartorius
Anterior superior iliac spine

Rectus femoris
Anterior inferior iliac spine

31
Q

Shape of pectineus?

A

Flat quadrangular

32
Q

Which muscle contribute to floor of femoral triangle?

A

Pectineus

33
Q

Pectineus inserts into which part of femur?

A

Pectineal line on the posterior aspect of femur immediately inferior to lesser trochanter

34
Q

Which vastus muscle extends farther distally ?

A

Vastus medialis extends farther distally than vastus lateralis

35
Q

Which muscle is the first to atrophy in knee joint disease and the last one to recover?

A

Vastus medialis
is the first part of quadriceps muscle to atrophy in knee joint disease and the last to recover

36
Q

What causes rectus femoris rupture? What happens

A

Sudden violent extension movement of knee joint

Muscle belly retracts proximally
Gap on anterior surface of thigh

37
Q

What causes ligamentum patella rupture?

A

Sudden flexing force
When quadriceps femoris is actively contracting

38
Q

Difference in rectus femoris rupture and ligamentum patallae rupture?

A

rectus femoris
Violent extension of knee joint

Ligamentum patallae rupture
Sudden flexing force to knee joint

Antomy Muscles Of Lower Limb (8 decks)

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