1.2.5.3. Muscles of Hip Joint Abduction Flashcards Preview

Nessy Anatomy MSK Lower Limb > 1.2.5.3. Muscles of Hip Joint Abduction > Flashcards

Flashcards in 1.2.5.3. Muscles of Hip Joint Abduction Deck (36)
Loading flashcards...
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 Abductor Muscles of the Hip Joint?

1. Gluteus Medius Muscle
2. Gluteus Minimus Muscle
3. Deep Gluteal Muscles:
3. a) Piriformis Muscle
3. b) Obturator Internus Muscle
3. c) Superior and Inferior Gemelli Muscles

3

Where is the Gluteus Medius Muscle located?

In between the Gluteus Maximus and the Gluteus Minimus Muscles

4

How is the Gluteus Medius Muscle described?

Fan-Shaped, similar to the Gluteus Minimus Muscle

5

Where does the Gluteus Medius Muscle originate from?

Gluteal Surface of the Ilium

6

Where does the Gluteus Medius Muscle attach distally?

Lateral Surface of the Greater Trochanter of the Femur

7

What is the function of the Gluteus Medius Muscle?

1. Abduction of the Lower Limb at the Hip Joint
2. Medial Rotation of the Lower Limb at the Hip Joint
3. During Locomotion, it secures the Pelvis, preventing Pelvic Drop of the opposite Limb
4. The Posterior Fibers are thought to produce a small amount of Lateral Rotation of the Lower Limb at the Hip Joint

8

What is the innervation of the Gluteus Medius Muscle?

The Superior Gluteal Nerve

9

Where is the Gluteus Minimus Muscle located, in relation to the other Gluteal Muscles?

1. It is the Deepest and Smallest of the Superficial Gluteal Muscles (Gluteus Maximus and Medius Muscles)
2. It is Superficial to the Deep Gluteal Muscles (Piriformis, Gemelli)

10

What is the Gluteus Minimus Muscle's shape and function similar to?

Gluteus Medius Muscle, it is also Fan-Shaped

11

Where does the Gluteus Minimus Muscle originate from?

Ilium

12

Where does the Gluteus Minimus Muscle attach distally?

It converges to form a Tendon, inserting into the Anterior Side of the Greater Trochanter

13

What is the function of the Gluteus Minimus Muscle?

1. Abduction of the Lower Limb at the Hip Joint
2. Medial Rotation of the Lower Limb at the Hip Joint
3. During Locomotion, it secures the Pelvis, preventing Pelvic Drop of the opposite Limb

14

What is the innervation of the Gluteus Minimus Muscle?

Superior Gluteal Nerve

15

Where are the Deep Gluteal Muscles located?

Underneath the Gluteus Minimus Muscle

16

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

17

Where does the Piriformis Muscle originate from?

Anterior Surface of the Sacrum

18

Where does the Piriformis Muscle travel?

Inferolaterally, through the Greater Sciatic Foramen

19

Where does the Piriformis Muscle attach distally?

The Greater Trochanter of the Femur

20

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

21

What is the innervation of the Piriformis Muscle?

Nerve to the Piriformis Muscle

22

What does the Obturator Internus Muscle form?

The Lateral Walls of the Pelvic Cavity

23

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

Superior and Inferior Gemelli Muscles (Gemelli Muscle)

24

Where does the Obturator Internus Muscle originate from?

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

25

Where does the Obturator Internus Muscle travel?

Through the Lesser Sciatic Foramen

26

Where does the Obturator Internus Muscle attach distally?

The Greater Trochanter of the Femur

27

What is the function of the Obturator Internus Muscle?

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

28

How are the Gemelli Muscles described?

2 Narrow, Triangular Muscles

29

What separates the 2 Gemelli Muscles?

The Obturator Internus Tendon

30

Where does the Superior Gemelli Muscle originate from?

The Ischial Spine