The Thigh

Question 1

What is the innervation of most muscles in the anterior compartment of the thigh?

Answer 1

The femoral nerve

Question 2

Name the muscles in the anterior compartment of the thigh.

Answer 2

The illiposas, the pectinus, the sartrious, and the quadriceps femoris

Question 3

What are the two muscles that make up the illiposas?

Answer 3

The psoas major and the illacus

Question 4

What are the orgins and insertion of the psaos major?

Answer 4

Orign; the lumbar vertebrae, insertion= the lesser trochanter of the femur

Question 5

What are the orginins and insertions of the illacus?

Answer 5

Illacus orignanets from the ilaliac foss of the pelvis, and insertions into the lesser trochanter of the femur

Question 6

What ss the main difference in function between the illiopsoas and the other.muscles in the anterior thigh?

Answer 6

Does not extend the leg at the knee

Question 7

What is the orignin and insertion of the pectinus?

Answer 7

Origin= pectinal line on the anterior surface f the pelvis, insertion the pectinal line on the posterior surface of the femur.

Question 8

What is the action of the pectinus?

Answer 8

Abduction and flexion at the hip joint

Question 9

What are the orgins and insertions of the sartorius?

Answer 9

Origin= the anterior superior illac spine, insertion the superior medial surface of the tibia

Question 10

What are the three vastus muscles?

Answer 10

The Vastus intermedius, the vastus meduis and the vastus lateralus

Question 11

What is the orignin and insertion of the rectus fermoris?

Answer 11

Origin: the ilium, superior to the acetabulum, and insertion the patella and the quadriceps fermoris tendon.

Question 12

What are the muscles found in the medial thigh?

Answer 12

The adductor magnus, the adductor longus, the adductor brevis, and the Obtruator externus and the gracilias

Question 13

What are the main innervations of the muscles in the medial thigh?

Answer 13

The obturator nerve

Question 14

What are the main functions of the muscles in the medial thighs?

Answer 14

Hip adductors

Question 15

What are the two parts of the adductor magnus?

Answer 15

The adductor portion and the hamstring portion

Question 16

What are the two different functions of the adductor mangus?

Answer 16

The adductor part flexes and the hamstring extends, overall responsible for adducting the thigh

Question 17

Thar is the origin and insertion of the hamstring part of the adductor mangus?

Answer 17

Origin= the ischial tuberosity and insertion adducytyor tubercle.

Question 18

What is the origin and insertion of the adductor part of the adductor magnus?

Answer 18

Inferior rmai of the pubis, and insertion the linea spera of the femur

Question 19

What is the origin and insertion of the adductor longus muscle?

Answer 19

Origin the pubis, insertion the linear aspera of the femur

Question 20

What is the origin and insertion of the adductor brevis?

Answer 20

Origin the body of the pubis and the inerferior pubic rami, Insertion the linea apsera on the porximal side of the femur

Question 21

What is the origin and insertion of the gracilas muscle?

Answer 21

Origin, inferior rami of the pubis, insertion the medial surface of tibia between the tendons of sartrious and the semitendonosus

Question 22

Name the main arterias that supply the anterior thigh.

Answer 22

The external iliac atery becomes the femoral artery, responsible for most of the aterial supply of the leg

Question 23

Name the main veins of the thigh?

Answer 23

The femoral vein drains into the external iliac vein, and there are also the great and small sapneous veins.

Question 24

What are the three borders of the femoral triangle?

Answer 24

The superior border is formed by the inguinal ligament, the lateral border is formed by the medial border of the sartiourus muscle and the medial border is formed by the meidal broder of the adductor longus muscle

Question 25

What forms the base and roof of the femoral triangle?

Answer 25

The base is formed by the pectinus, the illpsoas and the adducytor longus muscles, whereas the roof is formed by the fascia lata

Question 26

What are the contents of the femoral triangle (from medial to lateral)?

Answer 26

The femoral nerve, the formal artery, the femoral vein, the femoral canal

Question 27

What are the three main clinical revelancies of the femoral traingle?

Answer 27

Finding the femoral pulse, access the femoral artery and development of a femoral hernia

Question 28

What are the common functions of the muscles in the anterior compartment of the thigh?

Answer 28

Hip Flexors and Knee extensors

Question 29

What are the three muscles of the posterior compartment of the thigh?

Answer 29

The biceps femoris, the semitendonosus and the semimembranosus.

Question 30

Which is the most lateral of the muscles of the posterior compartment of the thigh?

Answer 30

The biceps femoris

Question 31

What is the orginins and insertion of the long head of the biceps femoris?

Answer 31

The long head orginates from the ischial tuberosity of the pelvis, and insertions into the linea aspera and the side of the femur

Question 32

What i the origin and insertion of the semitendonsous muscle?

Answer 32

Origin is the ischial tuberosity of the pelvis, and the insertion is the tibial surface of the mediastinum

Question 33

What is the origin and insertion of the smeimbrnosus muscle?

Answer 33

Origin+ the ischial tuberosity, and insertion is the medial tibilal condyle

Question 34

What are the actions of the muscles in the posterior compartment of the thigh?

Answer 34

flexion at the knee joint, and extension of thigh at hip for the smeimbranosus and the semitendonsus

Question 35

What is a avulsion fracture of the ischail tuberosity?

Answer 35

Avulsion is when a piece of bone breaks away, and hamstrings can tear off a piece of the ischail tuberosity, in sports that require contraction and relaxation of the muscle

Question 36

What are some of the symptom of a excessive stretch of the muscle fibres?

Answer 36

Hameotoma

Question 37

What innervates the msucles of the posterior compartment of the thigh?

Answer 37

The scialtic nerve (L4-S3) from the lumbar- sacral plexus