Lecture Exam 3 - Gluteal Region Posterior Compartment of the Thigh

Fascia Lata

dense, deep fascia investing thigh muscles

Coxal Bone

Pelvis

Sacrum + 2 Coxal Bones

Ilium

Pubis

Ischium

Acetabulum

socket for Femoral Head, formed from all three coxal bones

Lunate Surface

Acetabular Notch

Femoral Head

Femoral Neck

Transverse Acetabular Ligament

Ligament of the Femoral Head

Hip Extension

Hip Flexion

Hip Abduction

Hip Adduction

Hip Lateral Rotation

Hip Medial Rotation

Ischiofemoral Ligament

Limits extension and medial rotation of hip

Pubofemoral Ligament

Limits extension abduction, lateral rotation

Limits extension and prevents pelvis from tilting posteriorly

Gluteal Tuberosity

Lateral Condyle of the Tibia

Medial Condyle of the Tibia

Head of the Fibula

Gluteus Maximus

Sacrum and Ilium

Gluteus Maximus Origin

Gluteal Tuberosity, Lateral Condyle of the Tibia (Iliotibial Band)

Gluteus Maximus Insertion

Iliotibial Band

thickened specialization of Fascia Lata on lateral side of thigh

Hip extension

Gluteus Maximus Action

Greater Trochanter

Trochanteric Bursa

Located between Gluteus Maximus and Greater Trochanter

Trochanteric Bursitis

May result from repetitive activity involving extension of the thigh such as climbing stairs while carrying a load, running on a steeply elevated treadmill

Illium

Gluteus Medius and Minimus Origin

Greater Trochanter

Gluteus Medius and Minimus Insertion

Hip Abduction; Stabilize hip during gait

Gluteus Medius and Minimus Action

Sacrum

Piriformis Origin

Greater Trochanter

Piriformis Insertion

Lateral rotation of Hip

Piriformis Action

Superior Gluteal Nerve, Artery and Vein

emerge superior to the Piriformis Muscle

Inferior Gluteal Nerve, Artery and Vein

emerge inferior to the Piriformis Muscle

Inferior Gluteal Nerve

Gluteus Maximus Nerve

Superior Gluteal Nerve

Gluteus Medius and Minimus Nerve

Trendelenburg Sign

If the abductors are weakened and/or the Superior Gluteal Nerve is injured, the contralateral side of the hip drops when that limb is lifted.

Ischial Spine

Obturator Foramen

Ischial Tuberosity

Ischial Spine

Superior Gemellus Origin

Obturator Membrane

Obturator Internus Tendon Origin

Ischial Tuberosity

Inferior Gemellus Origin

Ischial Tuberosity

Quadratus Femoris Origin

Greater Trochanter

Insertion of 4 deep glute muscles

Lateral rotation of hip

Action of 4 deep glute muscles

Gluteus Medius

Sciatic Nerve

Emerges inferior to Piriformis; Supply posterior thigh muscles

Tibial nerve and Common Fibular nerve

Sciatic nerve splits into what two nerves

Common Fibular nerve

What nerve variates as passes near or through the Piriformis

Knee Flexion

Knee Extension

Semitendinosus

Semimembranosus

Ischial Tuberosity

Origin of semitendinosus and semimembranosus

Medial Condyle of the Tibia

Insertion of semitendinosus and semimembranosus

Hip extension; Leg flexsion

Action of semitendinosus and semimembranosus

Tibial nerve

Nerve of semitendinosus and semimembranosus

Long Head of Biceps Femoris

Short Head of Biceps Femoris

Ischial Tuberosity

Origin of Long head of Biceps Femoris

Femur

Origin of Short Head of Biceps Femoris

Head of Fibula

Insertion of Bicep Femoris

Hip extension, leg flexsion

Action of Bicep Femoris

Common Fibular nerve

Nerve of Short Head of Biceps Femoris

Tibial nerve

Nerve of Long Head of Biceps Femoris

Medial Rotation of tibia

Rotation of Semitendinosus and Semimembranosus in open chain

Lateral rotation of femur

Rotation of Semitendinosus and Semimembranosus in closed chain

Lateral rotation of Tibia

Rotation of Bicep Femoris in open chain

Medial rotation of femur

Rotation of Bicep Femoris in closed chain