M3 - Muscular System Frog

Question 1

Largest muscle that occupies the anterior lateral border of the thigh

Answer 1

Triceps femoris

Question 2

Three heads of the Triceps femoris

Answer 2

1. vastus externus (dorsal head)
2. rectus femoris anticus (middle head)
3. vastus internus (ventral head)

Question 3

Ventral head of the Triceps femoris

Answer 3

Vastus internus

Question 4

Middle head of the Triceps femoris

Answer 4

Rectus femoris anticus

Question 5

Dorsal head of the Triceps femoris

Answer 5

Vastus externus

Question 6

Small muscle anterior to the vastus externus and medial to the rectus femoris anticus

Answer 6

Gluteus

Question 7

This muscle acts as the rotator of the femur.

Answer 7

Gluteus

Question 8

Posterior to the Triceps femoris and partly covered by the vastus externus.

Answer 8

Biceps femoris

Question 9

This muscle flexes the leg and extends the thigh.

Answer 9

Biceps femoris

Question 10

This muscle is an adductor of the thigh and extensor of the leg

Answer 10

Triceps femoris

Question 11

Posterior to the biceps femoris that extends from the dorsal part of the ischium to the back of the head of the tibio-fibula

Answer 11

Semimembranosus

Question 12

A short thin muscle between the vastus externus and the proximal end of the semimembranosus

Answer 12

Pyriformis

Question 13

This muscle pulls the urostyle and draws the femur dorsally

Answer 13

Pyriformis

Question 14

Acts as flexor of the leg, adductor and protractor of the thigh.

Answer 14

Sartorious

Question 15

A slender strip of muscle running obliquely across the ventral side of the thigh

Answer 15

Sartorius

Question 16

A narrow, flat muscle beneath the Sartorius. This muscle pulls the thigh ventrally and forward.

Answer 16

Adductor longus

Question 17

Posterior to the adductor longus is a thick, triangular muscle.

Answer 17

Adductor magnus

Question 18

This muscle adducts the thigh and leg, and draws the thigh ventrally.

Answer 18

Adductor magnus

Question 19

The large posterior ventral muscle taking origin from the posterior edge of the ischium.

Answer 19

Gracilis major

Question 20

A major adductor or extensor of the thigh.

Answer 20

Gracilis major

Question 21

A thin central muscle posterior to the Gracilis major. Serves as adductor and extensor of the shank.

Answer 21

Gracilis minor

Question 22

This muscle is best exposed by separating the Gracilis major from the adductor magnus. Adducts the thigh and flexes the leg.

Answer 22

Semitendinosus

Question 23

Most largest and the most posterior muscle of the leg. Attached to the distal end of the femur. It is a flexor of the shank and extensor of the foot

Answer 23

Gastrocnemius

Question 24

Anterior to the Gastrocnemius. Acts as flexor and extensor of the foot and extensor of the leg.

Answer 24

Peroneus

Question 25

Most anterior muscle of the leg. Extending from the distal end of the femur to the proximal end of the tarsals. It is a flexor of the foot and extensor of the leg.

Answer 25

Tibialis anticus

Question 26

A narrow thick muscle between the Gastrocnemius and tibio-fibula and proximal end of the tibiale.

Answer 26

Tibialis posticus