medial compartment of the thigh

What muscles are listed for the medial thigh?

Gracilis, adductor longus, adductor brevis, adductor magnus (adductor and hamstring parts), and pectineus.

What are the two parts of adductor magnus?

Adductor part and hamstring part.

What is the general origin pattern of medial thigh muscles?

Pubis (except the hamstring part of adductor magnus, which originates at the ischial tuberosity).

What is the general main action of the medial thigh muscles?

Hip adduction.

What is the general nerve supply to the medial thigh?

Obturator nerve (L2-L4), with exceptions for pectineus and adductor magnus hamstring part.

What is the origin of gracilis?

Inferior pubic symphysis, body of pubis, and inferior pubic ramus.

What is the insertion of gracilis?

Pes anserine on the proximal medial tibia.

What are all actions of gracilis in the lecture?

Hip adduction, flexion, and medial rotation; knee flexion and medial rotation of the flexed knee.

What is the innervation of gracilis?

Obturator nerve.

What is the origin of adductor longus?

Anterior pubis, pubic crest, and pubic symphysis.

What is the insertion of adductor longus?

Middle one-third of the linea aspera of the femur.

What are the actions of adductor longus?

Hip adduction and medial rotation.

What is the innervation of adductor longus?

Obturator nerve.

What is the origin of adductor brevis?

Body and inferior ramus of pubis.

What is the insertion of adductor brevis?

Pectineal line and proximal one-third of the linea aspera of the femur.

What are the actions of adductor brevis?

Hip adduction and medial rotation.

What is the innervation of adductor brevis?

Obturator nerve.

What is the origin of adductor magnus (adductor part)?

Inferior pubic ramus and ischial ramus.

What is the insertion of adductor magnus (adductor part)?

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

What are the actions of adductor magnus (adductor part)?

Hip adduction and hip flexion.

What is the innervation of adductor magnus (adductor part)?

Obturator nerve.

What is the origin of adductor magnus (hamstring part)?

Ischial tuberosity.

What is the insertion of adductor magnus (hamstring part)?

Adductor tubercle of the femur.

What are the actions of adductor magnus (hamstring part)?

Hip adduction and hip extension.

What is the innervation of adductor magnus (hamstring part)?

Sciatic nerve, tibial division.

What is the origin of pectineus?

Superior ramus of pubis.

What is the insertion of pectineus?

Pectineal line of femur, distal to lesser trochanter.

What are the actions of pectineus?

Hip adduction and hip flexion.

What is the innervation of pectineus?

Femoral nerve and/or obturator nerve (variable).

Which medial thigh muscle inserts on the pes anserine?

Gracilis.

Which medial thigh muscle inserts on the middle third of linea aspera?

Adductor longus.

Which medial thigh muscle inserts on the proximal third of linea aspera and pectineal line?

Adductor brevis.

Which medial thigh muscle part inserts on the adductor tubercle?

Hamstring part of adductor magnus.

Which medial thigh muscles medially rotate the hip according to the slides?

Gracilis, adductor longus, and adductor brevis.

Which medial thigh muscle also flexes and medially rotates the knee?

Gracilis.

Which medial thigh muscle part extends the hip?

Hamstring part of adductor magnus.

Which medial thigh muscle part has tibial-division sciatic innervation?

Hamstring part of adductor magnus.

Which medial thigh muscle may have femoral and/or obturator innervation?

Pectineus.

Which medial thigh muscles have hip flexion listed as an action?

Gracilis, adductor magnus (adductor part), and pectineus.

Which two medial thigh muscles have identical action and nerve patterns?

Adductor longus and brevis: hip adduction and medial rotation; obturator nerve.