Hip & Thigh Muscles – Origins, Insertions, Innervations

24 Question-and-Answer flashcards covering the origins, insertions, and innervations of eight key hip and thigh muscles.

What is the origin of the adductor part of the Adductor Magnus?

Inferior ramus of the pubis and ramus of the ischium

What is the origin of the hamstring part of the Adductor Magnus?

Ischial tuberosity

Where does the adductor part of the Adductor Magnus insert?

Gluteal tuberosity, linea aspera, and medial supracondylar line of the femur

Where does the hamstring part of the Adductor Magnus insert?

Adductor tubercle of the femur

Which nerve innervates the adductor part of the Adductor Magnus?

Obturator nerve (L2–L4)

Which nerve innervates the hamstring part of the Adductor Magnus?

Tibial part of the sciatic nerve (L4)

What is the origin of the Obturator Externus?

Margins of the obturator foramen and the obturator membrane

Where does the Obturator Externus insert?

Trochanteric fossa of the femur

Which nerve innervates the Obturator Externus?

Obturator nerve (L3, L4)

What is the origin of the Tensor Fasciae Latae (TFL)?

Anterior superior iliac spine (ASIS) and anterior part of the iliac crest

Where does the Tensor Fasciae Latae insert?

Iliotibial tract to the lateral condyle of the tibia

Which nerve innervates the Tensor Fasciae Latae?

Superior gluteal nerve (L4–S1)

What is the origin of the short head of the Biceps Femoris?

Linea aspera and lateral supracondylar line of the femur

Where does the short head of the Biceps Femoris insert?

Lateral side of the head of the fibula

Which nerve innervates the short head of the Biceps Femoris?

Common fibular division of the sciatic nerve (L5–S2)

What is the origin of the Superior Gemellus?

Ischial spine

Where does the Superior Gemellus insert?

Greater trochanter of the femur via the tendon of the obturator internus

Which nerve innervates the Superior Gemellus?

Nerve to obturator internus (L5, S1)

What is the origin of the Inferior Gemellus?

Ischial tuberosity

Where does the Inferior Gemellus insert?

Greater trochanter of the femur via the tendon of the obturator internus

Which nerve innervates the Inferior Gemellus?

Nerve to quadratus femoris (L5, S1)

What is the origin of the Quadratus Femoris?

Lateral border of the ischial tuberosity

Where does the Quadratus Femoris insert?

Quadrate tubercle on the intertrochanteric crest of the femur

Which nerve innervates the Quadratus Femoris?

Nerve to quadratus femoris (L5, S1)