Lower Extremity- Muscles of the Thigh Flashcards Preview

Unit 1 Muscles (Attachments, Actions, Innervations, Blood Supply) > Lower Extremity- Muscles of the Thigh > Flashcards

Flashcards in Lower Extremity- Muscles of the Thigh Deck (23)
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1
Q

What are the attachments of the Iliacus muscle?

A

Iiac fossa to the lesser trochanter of the femur

2
Q

What are the actions of the Iliacus muscle?

A

Flexion of the thigh at hip, and stabilizes the hip joint

3
Q

What innervates the Iliacus muscle?

A

Femoral nerve and lumbar plexus arteries

4
Q

What provides blood to the iliacus muscle?

A

Femoral artery, iliolumbar, obturator, and deep circumflex iliac arteries.

5
Q

What are the attachments of the Psoas muscle?

A

From anterior lumbar transverse processes, vertebral bodies, and vertebral discs, to the lesser trochanter of the femur.

6
Q

What are the actions of the Psoas muscle?

A

Flexes thigh and stabilizes the hip joint

7
Q

What innervates the Psoas muscle?

A

ventral rami of L1-L3

8
Q

What provides blood to the Psoas muscle?

A

FOIL-E! Femoral, obturator, iliolumbar, lumbar, and external iliac arteries

9
Q

Rectus femoris muscle

A

Attachments: from anterior inferior iliac spine & groove of the acetabulum to the base of the patella
Actions: flexes thigh, and extends the leg at the knee
Nerve: femoral n.
Blood supply: femoral, lateral circumflex femoral a.

10
Q

sartorious muscle

A

Attachments: from anterior superior iliac spine to medial aspect of the proximal tibia
Actions: flexes thigh, abducts thigh, laterally rotates thigh, flexes leg at knee
Nerve: Femoral n.
Blood supply: femoral, lateral circumflex femoral, descending genicular

11
Q

Tensor fascia latea muscle

A

Attachments: anterior superior iliac spine and adjacent iliac crest to Iliotibial Tract (IT band)
Action: abduct, flex, and medially rotate thigh. assists in maintaining leg extended
Nerve: Superior gluteal nerve
Blood supply: Superior gluteal artery, lateral circumflex femoral, superficial circumflex iliac arteries

12
Q

Vastus intermedius

A

Attachments: anterior aspect of proximal 2/3 shaft of the femur to the base of the patella
Actions: Extends leg at knee
Nerve: Femoral n.
Blood supply: Femoral artery, profunda femoral artery

13
Q

Vastus lateralis

A

Attachments: lateral posterior aspect of the femur to the lateral border of the patella
Action: extends the leg at knee
Nerve: Femoral n.
Blood supply: Femoral, lateral circumflex femoral (descending branch), and 1st perforating.

14
Q

Vastus medialis

A

Attachments: medial posterior aspect of the femur to medial border of the patella
Actions: Extends leg at the knee
Nerve: Femoral n.
Blood supply: Femoral, Profunda femorial, Descending genicular

15
Q

Adductor Brevis

A

Attachments: inferior pubic ramus to proximal posterior aspect of the femur
Actions: Adducts the thigh at the hip (only!)
Nerve: Obturator n.
Blood supply: Medial circumflex femoral, Obturator, profunda femoral arteries

16
Q

Adductor Longus

A

Attachments: Pubic crest to the middle posterior aspect of the femur
Actions: Adducts the thigh at the hip, and also flexes the thigh at the hip
Nerve: Obturator n.
Blood supply: PMFD- Profunda femoral, medial circumflex femoral, femoral, descending genicular

17
Q

adductor magnus

A

Attachments: Ischial tuberosity to posterior femur and adductor tubercle
Actions: Adducts and extends the thigh
Nerve: Obturator n. & Tibial division of the sciatic nerve
Blood supply: FPOD- femoral, profunda femoral, Obturator and descending genicular arteries

18
Q

Gracilis

A

Attachments: Inferior pubic ramus to the medial proximal aspect of the tibia
Actions: adduct the thigh, medially rotate and flexes the leg
Nerve: Obturator n.
Blood supply: (FP-“With Grace you get a Free Pass”) Femoral, and Profunda femoris

19
Q

Pectineus

A

Attachments: Superior pubic ramus to proximal posterior femoral shaft
Action: Adducts and flexes thigh
Nerve: Femoral n. & accessory obturator nerve when it exists
Blood Supply: (Move Over For– pectineus) Medial circumflex femoral, Obturator, Femoral a.

20
Q

Obturator Externus

A

Attachments: External aspect of rim of obturator foramen to trochanteric fossa
Action: laterally rotates thigh
Nerve: Obturator n.
Blood Supply: (MO-ney) Medial circumflex femoral, and obturator a.

21
Q

Biceps femoris

A

Attachments: Ischial tuberosity (long head) and posterior/lateral femur (short head) to fibular head
Actions: flexes leg (both) and extends thigh (long head)
Nerve: Tibial division of the sciatic nerve (long head), peroneal/fibular division of the sciatic nerve (short head)
Blood supply: (PB-LSG) Perforating brances of profunda femoris, lateral superior genicular

22
Q

Semimembranosus

A

Attachments: Ischial tuberosity to posterior aspect of medial tibial condyle
Action: extends the thigh, and flexes the leg
Nerve: Tibial division of the sciatic nerve
Blood Supply: (PB) Perforating branches of profunda femoris a.

23
Q

Semitendinosus

A

Attachments: Ischial tuberosity to proximal medial aspect of the tibia
Action: Extends the thigh and flexes leg
Nerve: Tibial division of the sciatic n.
Blood Supply: (PBM) Perforating branches of profunda femoris, medial circumflex femoral a.