Hip - muscles (flexion and extension)

Question 1

Name the 5 hip flexor muscles and identify where they are located on the human body (if unable check on Complete Anatomy)

Answer 1

Iliacus
Psoas major
Pectineus
Rectus femoris
Sartorius

Question 2

What is the origin, insertion and innervation of the iliacus muscle?

Answer 2

Origin - Iliac crest, superior two thirds of iliac fossa

Insertion – Lesser trochanter of femur, via tendon of psoas major

Innervation – Femoral nerve (L2-L3)

Question 3

What is the origin, insertion and innervation of the psoas major muscle?

Answer 3

Origin – Transverse processes of L1-L5 vertebrae, adjacent intervertebral discs

Insertion – Lesser trochanter of femur

Innervation – Anterior rami of first, second and third lumbar nerves

Question 4

What is the origin, insertion and innervation of the pectineus muscle?

Answer 4

Origin – Superior pubic ramus

Insertion – Pectineal line of femur

Innervation – Femoral (L2-l3) and obturator nerves (L2-L3)

Question 5

What is the origin, insertion and innervation of the rectus femoris muscle?

Answer 5

Origin – Anterior inferior iliac spine and supraacetabular groove of ilium

Insertion – Tibial tuberosity, via tendon of quadriceps femoris muscle and patellar ligament

Innervation – Femoral nerve (L2-L4)

Question 6

What is the origin, insertion and innervation of the sartorius muscle?

Answer 6

Origin – Anterior superior iliac spine

Insertion – Medial aspect of proximal part of tibia

Innervation – Femoral nerve (L2-L3)

Question 7

What plane and axis does hip flexion/extension occur in?

Answer 7

Sagittal plane
Transverse/Horizontal axis

Question 8

Name the 4 hip extensor muscles and identify where they are located on the human body (if unable check on Complete Anatomy)

Answer 8

Biceps femoris
Semimembranosus
Semitendinosus
Gluteus maximus

Question 9

What is the origin, insertion and innervation of the biceps femoris muscle?

Answer 9

Origin – Ischial tuberosity, Linea aspera, and lateral supracondylar line

Insertion – Head of fibula

Innervation – Tibial (L5-S2) and common fibular (L5-S2) divisions of sciatic nerve

Question 10

What is the origin, insertion and innervation of the semimembranosus muscle?

Answer 10

Origin – Ischial tuberosity

Insertion – Medial condyle of tibia

Innervation – Tibial division of sciatic nerve (L5-S2)

Question 11

What is the origin, insertion and innervation of the gluteus maximus muscle?

Answer 11

Origin – Area of ilium located posterior to its posterior gluteal line, posterior aspects of sacrum and coccyx and sacrotuberous ligament

Insertion – Tubercle of iliotibial tract of tibia, via iliotibial tract and gluteal tuberosity of femur

Innervation – Inferior gluteal nerve (L5-S2)