1. adductor magnus 2. adductor longus 3. adductor brevis 4. pectineus 5. gracilis

13- HIP Flashcards by tanya leung

What are the parts of the hip bone?

Ilium
Ischium
pubis

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What actions can we do with the hip?

Flexion/Extension
Abduction/adduction
Medial/Lateral rotation
Circumduction

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Which muscles flex the hip?

Psoas major
Illiacus
Minor flexors: Rectus femoris, sartorious

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Psoas Major

Origin: Transverse processes of T12- L5 and the lateral aspects of the discs between them
Insertion: Lesser trochanter of the femur
Nerve: Lumbar plexus (L1- L3)
Action: Flexes the hip joint

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Origin: Upper 2/3 of the iliac fossa
Insertion: Base of the lesser trochanter of the femur
Nerve: Femoral Nerve
Action: Flexes and laterally rotates the hip joint

Illiacus

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What are the hip extensors?

Gluteus Maximus
Hamstrings- Biceps femoris, Semitendiosis, semimembranosis
Minor hip extensors-Gluteus Medius, adductor magnus

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Origin: Gluteal surface of the ilium
Insertion: Gluteal tuberosity of the femur and iliotbial band
Nerve: Inferior gluteal nerve
Action: External rotation and extension of the hip joint.Supports the extended knee through the IT band, and abduction of the hip

Gluteus maximus

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Biceps Femoris

Origin: (LH) ischial tuberosity. (SH) linea aspera of the femur
Insertion: Head of the fibula
Innervation: (LH) tibial n. (sh) common fibula n.
Action: Both heads: Flex knee,(LH) extends hip

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Semitendinosus

Origin: Ischial Tuberosity
Insertion: Pes Anserinus (tibia)
Innervation: Sciatic N (tibial)
Action: Flex knee, extends hip

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Semimembranosus

Origin: Ischial tuberosity
Insertion: Medial Condyle of the tibia
Innervation: Sciatic N(tibial)
Action: Flex knee, extends hip

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States the tendons of the pes anserinus

Sartorius
Semitendinosus
Gracilis

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Hip adductors

adductor magnus
adductor longus
adductor brevis
pectineus
gracilis

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Origin: Ischiopubic ramus
Insertion: pes anserinus
Innervation: Obturator n.
Action: Flexes,medially rotates and adducts the hip

Gracilis

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Adductor Magnus

Origin: Pubis,ischial tuberosity
Insertion: linea aspera and adductor tubercle of the femur
Innervation: Obturator n (adductor part) and sciatic n (hamstring part)
action: extends hip, flexes hip, adducts hip

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Adductor longus

Origin: Pubic body, just below crest
Insertion: Middle 1/3 of the linea aspera
Innervation: Obturator nerve
Action: adducts hip

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Adductor brevis

Origin: Anterior surface of the inferior ramus of the body of the pubis
Insertion: Lesser trochanter and linea aspera
Innervation:obturator nerve
Action: Adducts hip (some flexion)

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Pectineus

Origin: Pectineal line of the pubic bone
Insertion: Pectineal line of the femur
Innervation: Obturator nerve
Action: Flexes and adducts hip assists with medial rotation

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Hip abductors

Gluteus Maximus
Gluteus Medius
Gluteus Minimus
Tensor Fascia Lata

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Origin: Gluteal surface of the ilium, lumbar fascia, sacrum
Insertion: Gluteal tuberosity of the femur and iliotbial band
Nerve: Inferior Gluteal Nerve
Action: External rotation and extension of the hip joint. Supports the extended knee through the IT band, and abduction of the hip

Gluteus Maximus

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Gluteus Medius

Origin: Gluteal surface of the ilium
Insertion: Greater trochanter
Nerve: Superior Gluteal nerve
Action: abduction of the hip, lateral rotator of the thigh

Gluteus minimus

Origin: Area between anterior gluteal line and inferior gluteal line of gluteal surface of ilium
Insertion: Greater trochanter
Nerve: Superior gluteal nerve
Action: Abduction of the hip,medial rotator of the thigh

Tensor Fascia Latae

Origin:Iliac crest
Insertion: Iliotbial band
Nerve: Superior GLuteal nerve
Action: At the hip: flexion, medial rotation, abduction
At the knee: Lateral rotation
Also stabilize torso in the frontal plane

Medial rotators of the hip

Main: Gluteus maximus, gluteus minimus, Tensor fascia latae
Minor: Adductor brevis and longus
Superior portion of adductor magnus

Action of the gluteus medius

Abducts the hip joint
Anterior fibres medially rotate and may help with flexion of the hip
Posterior fibres laterally rotate and may assist with extension of the hip
Important role in stabilizing the hip and rotating the pelvis during gait.

Lateral rotators of the hip (deep 6)

1. piriformis 2. Gemellus superior 3. obturator internus 4. gemellus inferior 5. Quadratus femoris 6. Obturator externus

Piriformis

Origin: Sacrum Insertion: Greater trochanter Innervation: Nerve to piriformis action: external rotator of the hip joint, abduct hip in a flexed position

What forms part of the triceps coxae?

Superior gemullus Obturator internus Inferior Gemellus

sartorius

Origin: Anterior superior iliac spine Insertion: pes anserinus Nerve: Femoral n Actions: flexes hip, flexes knee, abducts hip, externally rotates hipS

States the Flexors

``` Iliopsoas sartorius tensor fasciae latae Rectus femoris tendon pectineus adductor longus adductor brevis adductor magnus-anterior part gracilis ```

States the adductors

``` pectineus Adductor longus adductor brevis Adductor magnus obturator externus gracilis ```

States the lateral rotators

``` Obturator externus piriformis obturator internus gemelli Quadratus femoris Gluteus maximus ```

states the extensors

``` Gluteus maximus Hamstrings: semitendinosus semimembranosus long head, biceps femoris Adductor magnus- posterior part ```

States the abductors

Gluteus medius Gluteus minimus tensor fasciae latae

State the medial rotators

Gluteus medius Gluteus minimus tensor fasciae latae

Whose Q angle is larger? Female or male? and why?

female.Bigger opening in the pelvis. Facilitate child birth.

Lined with articular ligament cartilage | approx 70% of the head of the femur articulates with it

acetabulum

Rim of fibrocartilage

Acetebular labrum

3 ligaments blend with joint capsule:

iliofemoral pubofemoral ischiofemoral

iliofemoral ligament

y shaped located on the anterior side Resists:extension rotation and some adduction Supports most of the body weight- plays an important role in standing posture

Located on anterior side | Resists: abduction, some external rotation and extension

pubofemoral ligament

Ischiofemoral ligament

Located on posterior side | Resists: extension, adduction and internal rotation

Posterior and anterior tilt of pelvis with flexion and extension respectively

Pelvofemoral rhythm

Why does the hip extension only 10 to 15 degrees?

It is limited by anterior portion of joint capsule, hip flexor muscles and ligaments (especially the iliofemoral ligament)

Abduction is limited by?

Adductor muscles

Adduction is limited by ?

Tensor fascia latae muscle

Medial & lateral rotation 30-50 degrees are limited by?

Antagonist muscles and ligaments

What consists of the femoral triangle?

Nerve, artery and vein

Causes pain and irritation at the sciatic nerve

Piriformis syndrome

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13- HIP Flashcards

Brainscape's Knowledge Genome^TM