Abductor Thigh Muscles (Quiz/Exam 3)

Question 1

Generally, the __________ muscles have a proximal attachment at the antero-inferior external surface of the bony pelvis (pubic bone, ischiopubic ramus, ischial tuberosity, and adjacent obturator membrane)

Answer 1

medial thigh

Question 2

Distally, all of the medial thigh muscles attach to the….

Answer 2

linea aspera of the femur

Question 3

What are the borders of the femoral triangle?

test q

Answer 3

-inguinal ligament
-adductor longus
-sartorius

Question 4

What are the contents of the femoral triangle?

test q

Answer 4

-femoral n.
-femoral a. and v.
-inguinal lymph nodes

Question 5

What makes up the adductor canal?

test q

Answer 5

-femoral a. and v.
-saphenous n.

Question 6

What is the origin/proximal attachment for the adductor longus?

test q

Answer 6

body of pubis inferior to pubic crest

Question 7

What is the insertion/distal attachment of the adductor longus?

Answer 7

middle 3rd of linea aspera of femur

Question 8

What innervates the adductor longus?

Answer 8

obturator n.

Question 9

What is the action of the adductor longus?

Answer 9

adduct thigh

Question 10

What is the origin/proximal attachment for the adductor brevis?

Answer 10

body of pubis inferior to ramus of pubis

Question 11

What is the insertion/distal attachment for the adductor brevis?

Answer 11

pectineal line and proximal part of the linea aspera of the femur

Question 12

What innervates the adductor brevis?

Answer 12

obturator n.

Question 13

What are the actions of the adductor brevis?

Answer 13

-adducts thigh
-somewhat flexes thigh

Question 14

What are the 2 parts of the adductor magnus?

Answer 14

adductor part and hamstrings part

Question 15

What is the origin/proximal attachment for the adductor part of the adductor magnus?

Answer 15

inferior ramus of the pubis and ramus of the ischium

Question 16

What is the origin/proximal attachment for the hamstrings part of the adductor magnus?

Answer 16

ischial tuberosity

Question 17

What are the insertions/distal attachments for the adductor part of the adductor magnus?

Answer 17

-gluteal tuberosity
-linea aspera
-medial supracondylar line

Question 18

What is the insertion/distal attachment for the hamstrings part of the adductor magnus?

Answer 18

adductor tubercle of the femur

Question 19

What innervates the adductor part of the adductor magnus?

Answer 19

obturator n.

Question 20

What innervates the hamstrings part of the adductor magnus?

Answer 20

tibial part of sciatic n.

Question 21

What are the actions of the adductor magnus?

Answer 21

both adductor and hamstrings part= adducts thigh

adductor part= flexes thigh

hamstring part= extends thigh

Question 22

What is the origin/proximal attachment of the gracilis?

Answer 22

body and inferior ramus of the pubis

Question 23

What is the insertion/distal attachment of the gracilis?

test q

Answer 23

superior part of the medial surface of the tibia

Question 24

What innervates the gracilis?

Answer 24

obturator n.

Question 25

What are the actions of the gracilis?

Answer 25

-adducts thigh
-flexes leg
-helps rotate leg medially

Question 26

What are the 3 pes anerinus muscles?

test q

Answer 26

1) gracilis
2) semitendinosus
3) sartorius

Question 27

What is the insertion/distal attachment for all 3 pes anserinus muscles (gracilis, semitendinosus, and sartorius)?

test q

Answer 27

superior part of the medial surface of the tibia

Question 28

What is the origin/proximal attachment of the obturator externus?

Answer 28

margins of the obturator foramen and obturator membrane

Question 29

What is the insertion/distal attachment of the obturator externus?

Answer 29

trochanteric fossa of the femur

Question 30

What innervates the obturator externus?

Answer 30

obturator n.

Question 31

What are the actions of the obturator externus?

Answer 31

-laterally rotates thigh
-steadies head of femur in acetabulum