1.2.5.5. Muscles of Lateral Rotation of the Hip Joint Flashcards Preview

MSK anatomy (lower limb) > 1.2.5.5. Muscles of Lateral Rotation of the Hip Joint > Flashcards

Flashcards in 1.2.5.5. Muscles of Lateral Rotation of the Hip Joint Deck (48)
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1

What movements can be carried out at the Hip Joint?

1. Flexion
2. Extension
3. Abduction
4. Adduction
5. Lateral Rotation
6. Medial Rotation
7. Circumduction

2

What are the main Muscles of Lateral Rotation of the Hip Joint?

1. Biceps Femoris Muscle
2. Gluteus Maximus Muscle
3. Deep Gluteal Muscles:
3. a) Piriformis Muscle
3. b) Obturator Internus Muscle
3. c) Superior and Inferior Gemelli Muscles
3. d) Quadratus Femoris Muscle

3

1. What is the Biceps Femoris Muscle similar to?
2. Why?

1. Biceps Brachii in the Upper Arm
2. The Muscle has 2 Heads

4

What are the 2 Heads of the Biceps Femoris Muscle?

1. Long Head of the Biceps Femoris Muscle
2. Short Head of the Biceps Femoris Muscle

5

Where does the Long Head of the Biceps Femoris Muscle originate from?

Ischial Tuberosity of the Pelvis

6

Where does the Short Head of the Biceps Femoris Muscle originate from?

Linea Aspera on the Posterior Surface of the Femur

7

What do the Long and Short Heads of the Biceps Femoris Muscle form?

A single Tendon, the Tendon of the Biceps Femoris Muscle

8

Where does the Tendon of the Biceps Femoris Muscle attach distally?

Head of the Fibula

9

Where is the Biceps Femoris Muscle located?

It is the Lateral-Most Muscle in the Posterior Thigh

10

Where can the Tendon of the Biceps Femoris Muscle be felt?

Laterally at the Posterior Knee Joint

11

What is the function of the Biceps Femoris Muscle?

1. Flexion of the Leg at the Knee Joint
2. Extension of the Thigh at the Hip Joint
3. Lateral Rotation of the Thigh at the Hip Joint
4. Lateral Rotation of the Leg at the Knee Joint

12

Do both the Long and Short Heads of the Biceps Femoris Muscle have the same innervation?

No

13

What is the innervation of the Long Head of the Biceps Femoris Muscle?

Tibial Part of the Sciatic Nerve

14

What is the innervation of the Short Head of the Biceps Femoris Muscle?

Common Fibular Part of the Sciatic Nerve

15

Where does the Gluteus Maximus Muscle originate from?

1. Gluteal (Posterior) Surface of the Ilium
2. Gluteal (Posterior) Surface of the Sacrum
3. Gluteal (Posterior) Surface of the Coccyx

16

Where does the Gluteus Maximus Muscle travel?

At a 45 degree angle across the Buttocks

17

Where does the Gluteus Maximus Muscle attach distally?

1. Iliotibial Tract
2. Gluteal Tuberosity of the Femur

18

What is the significance of the Gluteus Maximus Muscle?

1. It is the largest of the Gluteal Muscles
2. It is the most Superficial of the Gluteal Muscles - forming the shape of the Buttocks

19

What is the function of the Gluteus Maximus Muscle?

1. It is the main Extensor of the Hip Joint
2. It assists in Lateral Rotation of the Hip Joint
Note - It is only used when force is required, e.g. running, climbing, squatting

20

What is the innervation of the Gluteus Maximus Muscle?

The Inferior Gluteal Nerve

21

Where are the Deep Gluteal Muscles located?

Underneath the Gluteus Minimus Muscle

22

Where is the Piriformis Muscle located, in relation to the other Deep Gluteal Muscles?

It is the most Superior - making it a Key Landmark in the Gluteal Region

23

Where does the Piriformis Muscle originate from?

Anterior Surface of the Sacrum

24

Where does the Piriformis Muscle travel?

Inferolaterally, through the Greater Sciatic Foramen

25

Where does the Piriformis Muscle attach distally?

The Greater Trochanter of the Femur

26

What is the function of the Piriformis Muscle?

1. Lateral Rotation of the Lower Limb at the Hip Joint
2. Abduction of the Lower Limb at the Hip Joint

27

What is the innervation of the Piriformis Muscle?

Nerve to the Piriformis Muscle

28

What does the Obturator Internus Muscle form?

The Lateral Walls of the Pelvic Cavity

29

Which Muscle can the Obturator Internus Muscle sometimes be considered the same as?

Superior and Inferior Gemelli Muscles (Gemelli Muscle)

30

Where does the Obturator Internus Muscle originate from?

1. Pubis at the Obturator Foramen
2. Ischium at the Obturator Foramen