Gluteal Muscles Flashcards
Origin of Gluteus Maximus
Gluteal (Posterior Surface) of the Ilium, Sacrum and Coccyx
Attachment of Gluteus Maximus
Lateral side of the Greater Trochanter ( The Gluteal Tuberosity)
Iliotibial Tract
Action of Gluteus Maximus
Main Extensor of the thigh
Lateral Rotation of the Hip Joint
(only used when force is required e.g. running/climbing)
Innervation of Gluteus Maximus
Inferior Gluteal Nerve (L5/S1/S2)
Origin of Gluteus Medius
Gluteal surface of the Ilium
Attachment of Gluteus Medius
Lateral side of the Greater Trochanter of the Femur
Action of Gluteus Medius
Abduction and Medial Rotation of the Hip joint
Prevents contralateral hip drop during locomotion
Innervation of Gluteus Medius
Superior Gluteal nerve (L4/L5/S1)
Origin of Gluteus Minimus
Gluteal surface of the Ilium
Attachment of Gluteus Minimus
Anterior surface of the Greater Trochanter of the Femur
Action of Gluteus Minimus
Abduction and Medial Rotation of the Hip joint
Prevents contralateral hip drop during locomotion
Innervation of Gluteus Minimus
Superior Gluteal nerve (L4/L5/S1)
Tensor Fascia Lata Origin
Anterior Iliac Crest
Anterior Superior Iliac Spine
Tensor Fascia Lata Attachement
Iliotibial Tract
which goes on to attach to the Lateral Condyle of the Tibia
Tensor Fascia Lata Action
Abduction and Medial Rotation of the Hip Joint.
Supportive Role in the Gait cycle.
Tensor Fascia Lata Innervation
Superior Gluteal nerve (L4/L5/S1)
How many muscles are there in the Superficial Gluteal Region
4 - Gluteus Maximus
Gluteus Medius
Gluteus Minimus
Tensor Fascia Lata
How many muscles are there in the Deep Gluteal Region
4/5 - Piriformis Gemelli Superior Obturator Internus Gemelli Inferior Quadratus Femoris
Origin of Piriformis
Anterior Surface of the Sacrum
Attachment of Piriformis
Greater Trochanter of the Femur
Action of Piriformis
Lateral Rotation and Abduction of the hip joint
Innervation of Piriformis
Nerve to Piriformis (S1/S2)
Clinical Significance of Piriformis
Splits the Greater Sciatic Foramen into 2 sections. Enables identification of Superior and Inferior Gluteal nerves as well the Sciatic nerve.
Obturator Internus Origin
Pubis and Ischium at the Obturator Foramen
Obturator Internus Attachment
Greater Trochanter of the Femur
Obturator Internus Action
Lateral Rotation and Abduction of the hip joint
Obturator Internus Innervation
Nerve to Obturator Internus (L5/S1/S2)
Superior Gemelli Origin
Ischial Spine
tip think Superior - Spine
Superior Gemelli Attachment
Greater Trochanter of the Femur
Superior Gemelli Action
Lateral Rotation and Abduction of the hip joint
Superior Gemelli Innervation
Nerve to Obturator Internus (L5/S1/S2)
Inferior Gemelli Origin
Ischial Tuberosity
Inferior Gemelli Attachment
Greater Trochanter of the Femur
Inferior Gemelli Action
Lateral Rotation and Abduction of the hip joint
Inferior Gemelli Innveration
Nerve to Quadratus Femoris (L4/L5/S1)
Quadratus Femoris Origin
Lateral side of the Ischial Tuberosity
Quadratus Femoris Attachment
Quadrate Tuberosity on the Intertrochanteric Crest (Posterior Surface of the Femur)
Quadratus Femoris Action
Lateral Rotation (only) of the hip joint
Quadratus Femoris Innveration
Nerve to Quadratus Femoris (L4/L5/S1)
Hip drop is caused by damage to which nerve?
Damage to the Superior Gluteal Nerve
What is a positive Trendelenberg Sign?
Patient standing on one leg will have an apparent drop of their Iliac crest in their contrateral hip
Main action(s) of the Superficial Muscles
Abduction and Medial Rotation
(Gluteus Maximus is the exception as it is responsible for Extension and Lateral Rotation
Main action(s) of the Deep Muscles
Lateral Rotation