Muscles of the Thigh Poterior View

Question 1

what is the origin, insertion, action, and innervation of adductor magnus (adductor part)

Answer 1

origin: ischiopubic ramus
insertion: linera aspera
action: adduct and flex the thigh at the hip joint
innervation: obturator nerve

Question 2

what is the origin, insertion, action, and innervation of adductor magnus (extensor part)

Answer 2

origin: ischial tuberosity
insertion: adductor tubercle
action: extension of the thigh at the hip joint
innervation: sciatic nerve

Question 3

what is the origin, insertion, action, and innervation of gracilis?

Answer 3

origin: pubic
insertion: upper medial tibia
action: adduct and flex the thigh at the hip joint
innervation: obturator nerve

Question 4

what is the origin, insertion, action, and innervation of Gluteus Mediuss?

Answer 4

origin: ilium
insertion: greater trochanter
action: abduct and medially roatate at the hip joint
innervation: supperior gluteal nerve

Question 5

what is the origin, insertion, action, and innervation of gluteauss maximus?

Answer 5

origin: ilium, sacrum, coccyx
insertion: gluteal tuberosity
action: extension and lateral rotation of the thigh at the hip jint
innervation: inferior gluteal nerve

Question 6

what is the origin, insertion, action, and innervation of semimemmbranosus?

Answer 6

origin: ischial tuberosity
insetion: medial condyle of the tibia
action: extension of the thigh at the hip joint. Flexion of the leg at the knee joint
innervation: sciatic nerve

Question 7

what is the origin, insertion, action, and innervation of semitendinosus?

Answer 7

origin: ischial tuberosity
insertion: upper medial tibia
action: extension of the thigh at the hip joint. Flexion of the leg at the knee joint
innervation: sciatic nerve

Question 8

what is the origin, insertion, action, and innervation of biceps femoris (long head)

Answer 8

origin: ischial tuberosity
insertion: head of fibula
action: extension of the Thigh at the Hip joint. Flexion of the leg at the knee joint
innervation: sciatic nerve

Question 9

what is the origin, insertion, action, and innervation of bicepts femoris (short head)

Answer 9

origin: linea aspera
insertion: head of fibula
action: lateral rotation of the leg
innervation: sciatic nerve

Question 10

which muscles share

origin: ischial tuberosity
innervation: sciatic nerve

Answer 10

• adductor magnus (extensor part)
• semimembranosus
• semitendinosus
• biceps femoris (long head)

Question 11

which muscles share the

action: Extension of the thigh at the hip joint, Flexion of the leg at the knee joint
innervation: Sciatic nerve

Answer 11

• biceps femoris (long head)
• semitendinosus
• semimembranosus

Question 12

which muscles share
innervation: at the obturator nerve

Action: adduct and flex the thigh at the hip joint

Answer 12

• adductor magnus (adductor part)
• gracilis